Class DefaultEnumerable<T>

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      T aggregate​(Function2<T,​T,​T> func)
      Applies an accumulator function over a sequence.
      <TAccumulate>
      TAccumulate
      aggregate​(TAccumulate seed, Function2<TAccumulate,​T,​TAccumulate> func)
      Applies an accumulator function over a sequence.
      <TAccumulate,​TResult>
      TResult
      aggregate​(TAccumulate seed, Function2<TAccumulate,​T,​TAccumulate> func, Function1<TAccumulate,​TResult> selector)
      Applies an accumulator function over a sequence.
      boolean all​(Predicate1<T> predicate)
      Determines whether all elements of a sequence satisfy a condition.
      boolean any()
      Determines whether a sequence contains any elements.
      boolean any​(Predicate1<T> predicate)
      Determines whether any element of a sequence satisfies a condition.
      Enumerable<T> asEnumerable()
      Returns the input typed as Enumerable<TSource>.
      protected OrderedQueryable<T> asOrderedQueryable()  
      Queryable<T> asQueryable()
      Converts this Enumerable to a Queryable.
      java.math.BigDecimal average​(BigDecimalFunction1<T> selector)
      Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
      double average​(DoubleFunction1<T> selector)
      Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
      float average​(FloatFunction1<T> selector)
      Computes the average of a sequence of Float values that are obtained by invoking a transform function on each element of the input sequence.
      int average​(IntegerFunction1<T> selector)
      Computes the average of a sequence of int values that are obtained by invoking a transform function on each element of the input sequence.
      long average​(LongFunction1<T> selector)
      Computes the average of a sequence of long values that are obtained by invoking a transform function on each element of the input sequence.
      java.math.BigDecimal average​(NullableBigDecimalFunction1<T> selector)
      Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Double average​(NullableDoubleFunction1<T> selector)
      Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Float average​(NullableFloatFunction1<T> selector)
      Computes the average of a sequence of nullable Float values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Integer average​(NullableIntegerFunction1<T> selector)
      Computes the average of a sequence of nullable int values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Long average​(NullableLongFunction1<T> selector)
      Computes the average of a sequence of nullable long values that are obtained by invoking a transform function on each element of the input sequence.
      <T2> Enumerable<T2> cast​(java.lang.Class<T2> clazz)
      Converts the elements of this Enumerable to the specified type.
      Enumerable<T> concat​(Enumerable<T> enumerable1)
      Concatenates two sequences.
      boolean contains​(T element)
      Determines whether a sequence contains a specified element by using the default equality comparer.
      boolean contains​(T element, EqualityComparer<T> comparer)
      Determines whether a sequence contains a specified element by using a specified EqualityComparer<TSource>.
      <TInner,​TResult>
      Enumerable<TResult>
      correlateJoin​(CorrelateJoinType correlateJoinType, Function1<T,​Enumerable<TInner>> inner, Function2<T,​TInner,​TResult> resultSelector)
      Deprecated.
      <TInner,​TResult>
      Enumerable<TResult>
      correlateJoin​(JoinType joinType, Function1<T,​Enumerable<TInner>> inner, Function2<T,​TInner,​TResult> resultSelector)
      For each row of the current enumerable returns the correlated rows from the inner enumerable (nested loops join).
      int count()
      Returns the number of elements in a sequence.
      int count​(Predicate1<T> predicate)
      Returns a number that represents how many elements in the specified sequence satisfy a condition.
      <TKey> OrderedEnumerable<T> createOrderedEnumerable​(Function1<T,​TKey> keySelector, java.util.Comparator<TKey> comparator, boolean descending)
      Performs a subsequent ordering of the elements in an OrderedEnumerable according to a key, using a specified comparator.
      Enumerable<T> defaultIfEmpty()
      Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.
      Enumerable<T> defaultIfEmpty​(T value)
      Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.
      Enumerable<T> distinct()
      Returns distinct elements from a sequence by using the default equality comparer to compare values.
      Enumerable<T> distinct​(EqualityComparer<T> comparer)
      Returns distinct elements from a sequence by using a specified EqualityComparer<TSource> to compare values.
      T elementAt​(int index)
      Returns the element at a specified index in a sequence.
      T elementAtOrDefault​(int index)
      Returns the element at a specified index in a sequence or a default value if the index is out of range.
      Enumerable<T> except​(Enumerable<T> enumerable1)
      Produces the set difference of two sequences by using the default equality comparer to compare values.
      Enumerable<T> except​(Enumerable<T> enumerable1, EqualityComparer<T> comparer)
      Produces the set difference of two sequences by using the specified EqualityComparer<TSource> to compare values.
      T first()
      Returns the first element of a sequence.
      T first​(Predicate1<T> predicate)
      Returns the first element in a sequence that satisfies a specified condition.
      T firstOrDefault()
      Returns the first element of a sequence, or a default value if the sequence contains no elements.
      T firstOrDefault​(Predicate1<T> predicate)
      Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.
      <R> R foreach​(Function1<T,​R> func)
      Performs an operation for each member of this enumeration.
      protected Enumerable<T> getThis()
      Derived classes might wish to override this method to return the "outer" enumerable.
      protected OrderedEnumerable<T> getThisOrdered()
      Derived classes might wish to override this method to return the "outer" ordered-enumerable.
      <TKey> Enumerable<Grouping<TKey,​T>> groupBy​(Function1<T,​TKey> keySelector)
      Groups the elements of a sequence according to a specified key selector function.
      <TKey> Enumerable<Grouping<TKey,​T>> groupBy​(Function1<T,​TKey> keySelector, EqualityComparer<TKey> comparer)
      Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.
      <TKey,​TAccumulate,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,​T,​TAccumulate> accumulatorAdder, Function2<TKey,​TAccumulate,​TResult> resultSelector)
      Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
      <TKey,​TAccumulate,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,​T,​TAccumulate> accumulatorAdder, Function2<TKey,​TAccumulate,​TResult> resultSelector, EqualityComparer<TKey> comparer)
      Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
      <TKey,​TElement>
      Enumerable<Grouping<TKey,​TElement>>
      groupBy​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector)
      Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
      <TKey,​TElement>
      Enumerable<Grouping<TKey,​TElement>>
      groupBy​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector, EqualityComparer<TKey> comparer)
      Groups the elements of a sequence according to a key selector function.
      <TKey,​TElement,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector, Function2<TKey,​Enumerable<TElement>,​TResult> resultSelector)
      Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
      <TKey,​TElement,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector, Function2<TKey,​Enumerable<TElement>,​TResult> resultSelector, EqualityComparer<TKey> comparer)
      Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
      <TKey,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function2<TKey,​Enumerable<T>,​TResult> resultSelector)
      Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
      <TKey,​TResult>
      Enumerable<TResult>
      groupBy​(Function1<T,​TKey> keySelector, Function2<TKey,​Enumerable<T>,​TResult> elementSelector, EqualityComparer<TKey> comparer)
      Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
      <TInner,​TKey,​TResult>
      Enumerable<TResult>
      groupJoin​(Enumerable<TInner> inner, Function1<T,​TKey> outerKeySelector, Function1<TInner,​TKey> innerKeySelector, Function2<T,​Enumerable<TInner>,​TResult> resultSelector)
      Correlates the elements of two sequences based on equality of keys and groups the results.
      <TInner,​TKey,​TResult>
      Enumerable<TResult>
      groupJoin​(Enumerable<TInner> inner, Function1<T,​TKey> outerKeySelector, Function1<TInner,​TKey> innerKeySelector, Function2<T,​Enumerable<TInner>,​TResult> resultSelector, EqualityComparer<TKey> comparer)
      Correlates the elements of two sequences based on key equality and groups the results.
      <TInner,​TKey,​TResult>
      Enumerable<TResult>
      hashJoin​(Enumerable<TInner> inner, Function1<T,​TKey> outerKeySelector, Function1<TInner,​TKey> innerKeySelector, Function2<T,​TInner,​TResult> resultSelector)
      Correlates the elements of two sequences based on matching keys.
      <TInner,​TKey,​TResult>
      Enumerable<TResult>
      hashJoin​(Enumerable<TInner> inner, Function1<T,​TKey> outerKeySelector, Function1<TInner,​TKey> innerKeySelector, Function2<T,​TInner,​TResult> resultSelector, EqualityComparer<TKey> comparer)
      Correlates the elements of two sequences based on matching keys.
      <TInner,​TKey,​TResult>
      Enumerable<TResult>
      hashJoin​(Enumerable<TInner> inner, Function1<T,​TKey> outerKeySelector, Function1<TInner,​TKey> innerKeySelector, Function2<T,​TInner,​TResult> resultSelector, EqualityComparer<TKey> comparer, boolean generateNullsOnLeft, boolean generateNullsOnRight)
      Correlates the elements of two sequences based on matching keys, with optional outer join semantics.
      Enumerable<T> intersect​(Enumerable<T> enumerable1)
      Produces the set intersection of two sequences by using the default equality comparer to compare values.
      Enumerable<T> intersect​(Enumerable<T> enumerable1, EqualityComparer<T> comparer)
      Produces the set intersection of two sequences by using the specified EqualityComparer<TSource> to compare values.
      <C extends java.util.Collection<? super T>>
      C
      into​(C sink)
      Copies the contents of this sequence into a collection.
      T last()
      Returns the last element of a sequence.
      T last​(Predicate1<T> predicate)
      Returns the last element of a sequence that satisfies a specified condition.
      T lastOrDefault()
      Returns the last element of a sequence, or a default value if the sequence contains no elements.
      T lastOrDefault​(Predicate1<T> predicate)
      Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.
      long longCount()
      Returns an long that represents the total number of elements in a sequence.
      long longCount​(Predicate1<T> predicate)
      Returns an long that represents how many elements in a sequence satisfy a condition.
      T max()
      Returns the maximum value in a generic sequence.
      java.math.BigDecimal max​(BigDecimalFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum Decimal value.
      double max​(DoubleFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum Double value.
      float max​(FloatFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum Float value.
      <TResult extends java.lang.Comparable<TResult>>
      TResult
      max​(Function1<T,​TResult> selector)
      Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.
      int max​(IntegerFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum int value.
      long max​(LongFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum long value.
      java.math.BigDecimal max​(NullableBigDecimalFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.
      java.lang.Double max​(NullableDoubleFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.
      java.lang.Float max​(NullableFloatFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum nullable Float value.
      java.lang.Integer max​(NullableIntegerFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum nullable int value.
      java.lang.Long max​(NullableLongFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the maximum nullable long value.
      T min()
      Returns the minimum value in a generic sequence.
      java.math.BigDecimal min​(BigDecimalFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum Decimal value.
      double min​(DoubleFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum Double value.
      float min​(FloatFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum Float value.
      <TResult extends java.lang.Comparable<TResult>>
      TResult
      min​(Function1<T,​TResult> selector)
      Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.
      int min​(IntegerFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum int value.
      long min​(LongFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum long value.
      java.math.BigDecimal min​(NullableBigDecimalFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.
      java.lang.Double min​(NullableDoubleFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.
      java.lang.Float min​(NullableFloatFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum nullable Float value.
      java.lang.Integer min​(NullableIntegerFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum nullable int value.
      java.lang.Long min​(NullableLongFunction1<T> selector)
      Invokes a transform function on each element of a sequence and returns the minimum nullable long value.
      <TResult> Enumerable<TResult> ofType​(java.lang.Class<TResult> clazz)
      Filters the elements of an Enumerable based on a specified type.
      <TKey extends java.lang.Comparable>
      Enumerable<T>
      orderBy​(Function1<T,​TKey> keySelector)
      Sorts the elements of a sequence in ascending order according to a key.
      <TKey> Enumerable<T> orderBy​(Function1<T,​TKey> keySelector, java.util.Comparator<TKey> comparator)
      Sorts the elements of a sequence in ascending order by using a specified comparer.
      <TKey extends java.lang.Comparable>
      Enumerable<T>
      orderByDescending​(Function1<T,​TKey> keySelector)
      Sorts the elements of a sequence in descending order according to a key.
      <TKey> Enumerable<T> orderByDescending​(Function1<T,​TKey> keySelector, java.util.Comparator<TKey> comparator)
      Sorts the elements of a sequence in descending order by using a specified comparer.
      <C extends java.util.Collection<? super T>>
      C
      removeAll​(C sink)
      Removes the contents of this sequence from a collection.
      Enumerable<T> reverse()
      Inverts the order of the elements in a sequence.
      <TResult> Enumerable<TResult> select​(Function1<T,​TResult> selector)
      Projects each element of a sequence into a new form.
      <TResult> Enumerable<TResult> select​(Function2<T,​java.lang.Integer,​TResult> selector)
      Projects each element of a sequence into a new form by incorporating the element's index.
      <TCollection,​TResult>
      Enumerable<TResult>
      selectMany​(Function1<T,​Enumerable<TCollection>> collectionSelector, Function2<T,​TCollection,​TResult> resultSelector)
      Projects each element of a sequence to an Enumerable<TSource>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.
      <TResult> Enumerable<TResult> selectMany​(Function1<T,​Enumerable<TResult>> selector)
      Projects each element of a sequence to an Enumerable<TSource> and flattens the resulting sequences into one sequence.
      <TCollection,​TResult>
      Enumerable<TResult>
      selectMany​(Function2<T,​java.lang.Integer,​Enumerable<TCollection>> collectionSelector, Function2<T,​TCollection,​TResult> resultSelector)
      Projects each element of a sequence to an Enumerable<TSource>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.
      <TResult> Enumerable<TResult> selectMany​(Function2<T,​java.lang.Integer,​Enumerable<TResult>> selector)
      Projects each element of a sequence to an Enumerable<TSource>, and flattens the resulting sequences into one sequence.
      boolean sequenceEqual​(Enumerable<T> enumerable1)
      Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.
      boolean sequenceEqual​(Enumerable<T> enumerable1, EqualityComparer<T> comparer)
      Determines whether two sequences are equal by comparing their elements by using a specified EqualityComparer<TSource>.
      T single()
      Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
      T single​(Predicate1<T> predicate)
      Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.
      T singleOrDefault()
      Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
      T singleOrDefault​(Predicate1<T> predicate)
      Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.
      Enumerable<T> skip​(int count)
      Bypasses a specified number of elements in a sequence and then returns the remaining elements.
      Enumerable<T> skipWhile​(Predicate1<T> predicate)
      Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
      Enumerable<T> skipWhile​(Predicate2<T,​java.lang.Integer> predicate)
      Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.
      java.math.BigDecimal sum​(BigDecimalFunction1<T> selector)
      Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
      double sum​(DoubleFunction1<T> selector)
      Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
      float sum​(FloatFunction1<T> selector)
      Computes the sum of the sequence of Float values that are obtained by invoking a transform function on each element of the input sequence.
      int sum​(IntegerFunction1<T> selector)
      Computes the sum of the sequence of int values that are obtained by invoking a transform function on each element of the input sequence.
      long sum​(LongFunction1<T> selector)
      Computes the sum of the sequence of long values that are obtained by invoking a transform function on each element of the input sequence.
      java.math.BigDecimal sum​(NullableBigDecimalFunction1<T> selector)
      Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Double sum​(NullableDoubleFunction1<T> selector)
      Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Float sum​(NullableFloatFunction1<T> selector)
      Computes the sum of the sequence of nullable Float values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Integer sum​(NullableIntegerFunction1<T> selector)
      Computes the sum of the sequence of nullable int values that are obtained by invoking a transform function on each element of the input sequence.
      java.lang.Long sum​(NullableLongFunction1<T> selector)
      Computes the sum of the sequence of nullable long values that are obtained by invoking a transform function on each element of the input sequence.
      Enumerable<T> take​(int count)
      Returns a specified number of contiguous elements from the start of a sequence.
      Enumerable<T> takeWhile​(Predicate1<T> predicate)
      Returns elements from a sequence as long as a specified condition is true.
      Enumerable<T> takeWhile​(Predicate2<T,​java.lang.Integer> predicate)
      Returns elements from a sequence as long as a specified condition is true.
      <TKey extends java.lang.Comparable<TKey>>
      OrderedEnumerable<T>
      thenBy​(Function1<T,​TKey> keySelector)
      Performs a subsequent ordering of the elements in a sequence in ascending order according to a key.
      <TKey> OrderedEnumerable<T> thenBy​(Function1<T,​TKey> keySelector, java.util.Comparator<TKey> comparator)
      Performs a subsequent ordering of the elements in a sequence in ascending order according to a key, using a specified comparator.
      <TKey extends java.lang.Comparable<TKey>>
      OrderedEnumerable<T>
      thenByDescending​(Function1<T,​TKey> keySelector)
      Performs a subsequent ordering of the elements in a sequence in descending order according to a key.
      <TKey> OrderedEnumerable<T> thenByDescending​(Function1<T,​TKey> keySelector, java.util.Comparator<TKey> comparator)
      Performs a subsequent ordering of the elements in a sequence in descending order according to a key, using a specified comparator.
      java.util.List<T> toList()
      Creates a List<TSource> from an Enumerable<TSource>.
      <TKey> Lookup<TKey,​T> toLookup​(Function1<T,​TKey> keySelector)
      Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to a specified key selector function.
      <TKey> Lookup<TKey,​T> toLookup​(Function1<T,​TKey> keySelector, EqualityComparer<TKey> comparer)
      Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to a specified key selector function and key comparer.
      <TKey,​TElement>
      Lookup<TKey,​TElement>
      toLookup​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector)
      Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to specified key selector and element selector functions.
      <TKey,​TElement>
      Lookup<TKey,​TElement>
      toLookup​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector, EqualityComparer<TKey> comparer)
      Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to a specified key selector function, a comparer and an element selector function.
      <TKey> java.util.Map<TKey,​T> toMap​(Function1<T,​TKey> keySelector)
      Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function.
      <TKey> java.util.Map<TKey,​T> toMap​(Function1<T,​TKey> keySelector, EqualityComparer<TKey> comparer)
      Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function and key comparer.
      <TKey,​TElement>
      java.util.Map<TKey,​TElement>
      toMap​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector)
      Creates a Map<TKey, TValue> from an Enumerable<TSource> according to specified key selector and element selector functions.
      <TKey,​TElement>
      java.util.Map<TKey,​TElement>
      toMap​(Function1<T,​TKey> keySelector, Function1<T,​TElement> elementSelector, EqualityComparer<TKey> comparer)
      Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function, a comparer, and an element selector function.
      Enumerable<T> union​(Enumerable<T> source1)
      Produces the set union of two sequences by using the default equality comparer.
      Enumerable<T> union​(Enumerable<T> source1, EqualityComparer<T> comparer)
      Produces the set union of two sequences by using a specified EqualityComparer<TSource>.
      Enumerable<T> where​(Predicate1<T> predicate)
      Filters a sequence of values based on a predicate.
      Enumerable<T> where​(Predicate2<T,​java.lang.Integer> predicate)
      Filters a sequence of values based on a predicate.
      <T1,​TResult>
      Enumerable<TResult>
      zip​(Enumerable<T1> source1, Function2<T,​T1,​TResult> resultSelector)
      Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
      • Methods inherited from interface java.lang.Iterable

        forEach, iterator, spliterator
    • Constructor Detail

      • DefaultEnumerable

        public DefaultEnumerable()
    • Method Detail

      • getThis

        protected Enumerable<T> getThis()
        Derived classes might wish to override this method to return the "outer" enumerable.
      • getThisOrdered

        protected OrderedEnumerable<T> getThisOrdered()
        Derived classes might wish to override this method to return the "outer" ordered-enumerable.
      • foreach

        public <R> R foreach​(Function1<T,​R> func)
        Description copied from interface: ExtendedEnumerable
        Performs an operation for each member of this enumeration.

        Returns the value returned by the function for the last element in this enumeration, or null if this enumeration is empty.

        Specified by:
        foreach in interface ExtendedEnumerable<T>
        Type Parameters:
        R - Return type
        Parameters:
        func - Operation
      • aggregate

        public <TAccumulate> TAccumulate aggregate​(TAccumulate seed,
                                                   Function2<TAccumulate,​T,​TAccumulate> func)
        Description copied from interface: ExtendedEnumerable
        Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.
        Specified by:
        aggregate in interface ExtendedEnumerable<T>
      • aggregate

        public <TAccumulate,​TResult> TResult aggregate​(TAccumulate seed,
                                                             Function2<TAccumulate,​T,​TAccumulate> func,
                                                             Function1<TAccumulate,​TResult> selector)
        Description copied from interface: ExtendedEnumerable
        Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.
        Specified by:
        aggregate in interface ExtendedEnumerable<T>
      • any

        public boolean any()
        Description copied from interface: ExtendedEnumerable
        Determines whether a sequence contains any elements. (Defined by Enumerable.)
        Specified by:
        any in interface ExtendedEnumerable<T>
      • asEnumerable

        public Enumerable<T> asEnumerable()
        Description copied from interface: ExtendedEnumerable
        Returns the input typed as Enumerable<TSource>.

        This method has no effect other than to change the compile-time type of source from a type that implements Enumerable<TSource> to Enumerable<TSource> itself.

        asEnumerable<TSource>(Enumerable<TSource>) can be used to choose between query implementations when a sequence implements Enumerable<TSource> but also has a different set of public query methods available. For example, given a generic class Table that implements Enumerable<TSource> and has its own methods such as where, select, and selectMany, a call to where would invoke the public where method of Table. A Table type that represents a database table could have a where method that takes the predicate argument as an expression tree and converts the tree to SQL for remote execution. If remote execution is not desired, for example because the predicate invokes a local method, the asEnumerable<TSource> method can be used to hide the custom methods and instead make the standard query operators available.

        Specified by:
        asEnumerable in interface ExtendedEnumerable<T>
      • average

        public java.math.BigDecimal average​(BigDecimalFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public double average​(DoubleFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public java.lang.Double average​(NullableDoubleFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public int average​(IntegerFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of int values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public java.lang.Integer average​(NullableIntegerFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of nullable int values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public long average​(LongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of long values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public java.lang.Long average​(NullableLongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of nullable long values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public float average​(FloatFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of Float values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • average

        public java.lang.Float average​(NullableFloatFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the average of a sequence of nullable Float values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        average in interface ExtendedEnumerable<T>
      • contains

        public boolean contains​(T element)
        Description copied from interface: ExtendedEnumerable
        Determines whether a sequence contains a specified element by using the default equality comparer.
        Specified by:
        contains in interface ExtendedEnumerable<T>
      • count

        public int count​(Predicate1<T> predicate)
        Description copied from interface: ExtendedEnumerable
        Returns a number that represents how many elements in the specified sequence satisfy a condition.
        Specified by:
        count in interface ExtendedEnumerable<T>
      • defaultIfEmpty

        public Enumerable<T> defaultIfEmpty()
        Description copied from interface: ExtendedEnumerable
        Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.
        Specified by:
        defaultIfEmpty in interface ExtendedEnumerable<T>
      • elementAtOrDefault

        public T elementAtOrDefault​(int index)
        Description copied from interface: ExtendedEnumerable
        Returns the element at a specified index in a sequence or a default value if the index is out of range.
        Specified by:
        elementAtOrDefault in interface ExtendedEnumerable<T>
      • firstOrDefault

        public T firstOrDefault()
        Description copied from interface: ExtendedEnumerable
        Returns the first element of a sequence, or a default value if the sequence contains no elements.
        Specified by:
        firstOrDefault in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TElement> Enumerable<Grouping<TKey,​TElement>> groupBy​(Function1<T,​TKey> keySelector,
                                                                                       Function1<T,​TElement> elementSelector)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TElement> Enumerable<Grouping<TKey,​TElement>> groupBy​(Function1<T,​TKey> keySelector,
                                                                                       Function1<T,​TElement> elementSelector,
                                                                                       EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TResult> Enumerable<TResult> groupBy​(Function1<T,​TKey> keySelector,
                                                                Function2<TKey,​Enumerable<T>,​TResult> elementSelector,
                                                                EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TElement,​TResult> Enumerable<TResult> groupBy​(Function1<T,​TKey> keySelector,
                                                                               Function1<T,​TElement> elementSelector,
                                                                               Function2<TKey,​Enumerable<TElement>,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TElement,​TResult> Enumerable<TResult> groupBy​(Function1<T,​TKey> keySelector,
                                                                               Function1<T,​TElement> elementSelector,
                                                                               Function2<TKey,​Enumerable<TElement>,​TResult> resultSelector,
                                                                               EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TAccumulate,​TResult> Enumerable<TResult> groupBy​(Function1<T,​TKey> keySelector,
                                                                                  Function0<TAccumulate> accumulatorInitializer,
                                                                                  Function2<TAccumulate,​T,​TAccumulate> accumulatorAdder,
                                                                                  Function2<TKey,​TAccumulate,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen. Creates a result value from each accumulator and its key using a specified function.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • groupBy

        public <TKey,​TAccumulate,​TResult> Enumerable<TResult> groupBy​(Function1<T,​TKey> keySelector,
                                                                                  Function0<TAccumulate> accumulatorInitializer,
                                                                                  Function2<TAccumulate,​T,​TAccumulate> accumulatorAdder,
                                                                                  Function2<TKey,​TAccumulate,​TResult> resultSelector,
                                                                                  EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen. Creates a result value from each accumulator and its key using a specified function. Key values are compared by using a specified comparer.
        Specified by:
        groupBy in interface ExtendedEnumerable<T>
      • into

        public <C extends java.util.Collection<? super T>> C into​(C sink)
        Description copied from interface: ExtendedEnumerable
        Copies the contents of this sequence into a collection.
        Specified by:
        into in interface ExtendedEnumerable<T>
      • removeAll

        public <C extends java.util.Collection<? super T>> C removeAll​(C sink)
        Description copied from interface: ExtendedEnumerable
        Removes the contents of this sequence from a collection.
        Specified by:
        removeAll in interface ExtendedEnumerable<T>
      • hashJoin

        public <TInner,​TKey,​TResult> Enumerable<TResult> hashJoin​(Enumerable<TInner> inner,
                                                                              Function1<T,​TKey> outerKeySelector,
                                                                              Function1<TInner,​TKey> innerKeySelector,
                                                                              Function2<T,​TInner,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.
        Specified by:
        hashJoin in interface ExtendedEnumerable<T>
      • hashJoin

        public <TInner,​TKey,​TResult> Enumerable<TResult> hashJoin​(Enumerable<TInner> inner,
                                                                              Function1<T,​TKey> outerKeySelector,
                                                                              Function1<TInner,​TKey> innerKeySelector,
                                                                              Function2<T,​TInner,​TResult> resultSelector,
                                                                              EqualityComparer<TKey> comparer,
                                                                              boolean generateNullsOnLeft,
                                                                              boolean generateNullsOnRight)
        Description copied from interface: ExtendedEnumerable
        Correlates the elements of two sequences based on matching keys, with optional outer join semantics. A specified EqualityComparer<TSource> is used to compare keys.

        A left join generates nulls on right, and vice versa:

        Join types
        Join type generateNullsOnLeft generateNullsOnRight
        INNERfalsefalse
        LEFTfalsetrue
        RIGHTtruefalse
        FULLtruetrue
        Specified by:
        hashJoin in interface ExtendedEnumerable<T>
      • correlateJoin

        @Deprecated
        public <TInner,​TResult> Enumerable<TResult> correlateJoin​(CorrelateJoinType correlateJoinType,
                                                                        Function1<T,​Enumerable<TInner>> inner,
                                                                        Function2<T,​TInner,​TResult> resultSelector)
        Deprecated.
        Description copied from interface: ExtendedEnumerable
        For each row of the current enumerable returns the correlated rows from the inner enumerable (nested loops join).
        Specified by:
        correlateJoin in interface ExtendedEnumerable<T>
        Parameters:
        correlateJoinType - inner, left, semi or anti join type
        inner - generator of inner enumerable
        resultSelector - selector of the result. For semi/anti join inner argument is always null.
      • correlateJoin

        public <TInner,​TResult> Enumerable<TResult> correlateJoin​(JoinType joinType,
                                                                        Function1<T,​Enumerable<TInner>> inner,
                                                                        Function2<T,​TInner,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        For each row of the current enumerable returns the correlated rows from the inner enumerable (nested loops join).
        Specified by:
        correlateJoin in interface ExtendedEnumerable<T>
        Parameters:
        joinType - inner, left, semi or anti join type
        inner - generator of inner enumerable
        resultSelector - selector of the result. For semi/anti join inner argument is always null.
      • lastOrDefault

        public T lastOrDefault()
        Description copied from interface: ExtendedEnumerable
        Returns the last element of a sequence, or a default value if the sequence contains no elements.
        Specified by:
        lastOrDefault in interface ExtendedEnumerable<T>
      • max

        public java.lang.Long max​(NullableLongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Invokes a transform function on each element of a sequence and returns the maximum nullable long value. (Defined by Enumerable.)
        Specified by:
        max in interface ExtendedEnumerable<T>
      • max

        public <TResult extends java.lang.Comparable<TResult>> TResult max​(Function1<T,​TResult> selector)
        Description copied from interface: ExtendedEnumerable
        Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.
        Specified by:
        max in interface ExtendedEnumerable<T>
      • min

        public java.lang.Long min​(NullableLongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Invokes a transform function on each element of a sequence and returns the minimum nullable long value. (Defined by Enumerable.)
        Specified by:
        min in interface ExtendedEnumerable<T>
      • min

        public <TResult extends java.lang.Comparable<TResult>> TResult min​(Function1<T,​TResult> selector)
        Description copied from interface: ExtendedEnumerable
        Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.
        Specified by:
        min in interface ExtendedEnumerable<T>
      • ofType

        public <TResult> Enumerable<TResult> ofType​(java.lang.Class<TResult> clazz)
        Description copied from interface: ExtendedEnumerable
        Filters the elements of an Enumerable based on a specified type.

        Analogous to LINQ's Enumerable.OfType extension method.

        Specified by:
        ofType in interface ExtendedEnumerable<T>
        Type Parameters:
        TResult - Target type
        Parameters:
        clazz - Target type
        Returns:
        Collection of T2
      • select

        public <TResult> Enumerable<TResult> select​(Function2<T,​java.lang.Integer,​TResult> selector)
        Description copied from interface: ExtendedEnumerable
        Projects each element of a sequence into a new form by incorporating the element's index.
        Specified by:
        select in interface ExtendedEnumerable<T>
      • selectMany

        public <TResult> Enumerable<TResult> selectMany​(Function2<T,​java.lang.Integer,​Enumerable<TResult>> selector)
        Description copied from interface: ExtendedEnumerable
        Projects each element of a sequence to an Enumerable<TSource>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.
        Specified by:
        selectMany in interface ExtendedEnumerable<T>
      • selectMany

        public <TCollection,​TResult> Enumerable<TResult> selectMany​(Function2<T,​java.lang.Integer,​Enumerable<TCollection>> collectionSelector,
                                                                          Function2<T,​TCollection,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Projects each element of a sequence to an Enumerable<TSource>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.
        Specified by:
        selectMany in interface ExtendedEnumerable<T>
      • selectMany

        public <TCollection,​TResult> Enumerable<TResult> selectMany​(Function1<T,​Enumerable<TCollection>> collectionSelector,
                                                                          Function2<T,​TCollection,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Projects each element of a sequence to an Enumerable<TSource>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.
        Specified by:
        selectMany in interface ExtendedEnumerable<T>
      • sequenceEqual

        public boolean sequenceEqual​(Enumerable<T> enumerable1)
        Description copied from interface: ExtendedEnumerable
        Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.
        Specified by:
        sequenceEqual in interface ExtendedEnumerable<T>
      • single

        public T single()
        Description copied from interface: ExtendedEnumerable
        Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.
        Specified by:
        single in interface ExtendedEnumerable<T>
      • single

        public T single​(Predicate1<T> predicate)
        Description copied from interface: ExtendedEnumerable
        Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.
        Specified by:
        single in interface ExtendedEnumerable<T>
      • singleOrDefault

        public T singleOrDefault()
        Description copied from interface: ExtendedEnumerable
        Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.
        Specified by:
        singleOrDefault in interface ExtendedEnumerable<T>
      • singleOrDefault

        public T singleOrDefault​(Predicate1<T> predicate)
        Description copied from interface: ExtendedEnumerable
        Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.
        Specified by:
        singleOrDefault in interface ExtendedEnumerable<T>
      • skipWhile

        public Enumerable<T> skipWhile​(Predicate2<T,​java.lang.Integer> predicate)
        Description copied from interface: ExtendedEnumerable
        Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.
        Specified by:
        skipWhile in interface ExtendedEnumerable<T>
      • sum

        public java.math.BigDecimal sum​(BigDecimalFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public java.math.BigDecimal sum​(NullableBigDecimalFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public double sum​(DoubleFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public java.lang.Double sum​(NullableDoubleFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public int sum​(IntegerFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of int values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public java.lang.Integer sum​(NullableIntegerFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of nullable int values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public long sum​(LongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of long values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public java.lang.Long sum​(NullableLongFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of nullable long values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public float sum​(FloatFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of Float values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • sum

        public java.lang.Float sum​(NullableFloatFunction1<T> selector)
        Description copied from interface: ExtendedEnumerable
        Computes the sum of the sequence of nullable Float values that are obtained by invoking a transform function on each element of the input sequence.
        Specified by:
        sum in interface ExtendedEnumerable<T>
      • takeWhile

        public Enumerable<T> takeWhile​(Predicate2<T,​java.lang.Integer> predicate)
        Description copied from interface: ExtendedEnumerable
        Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.
        Specified by:
        takeWhile in interface ExtendedEnumerable<T>
      • toMap

        public <TKey> java.util.Map<TKey,​T> toMap​(Function1<T,​TKey> keySelector)
        Description copied from interface: ExtendedEnumerable
        Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function.

        NOTE: Called toDictionary in LINQ.NET.

        Specified by:
        toMap in interface ExtendedEnumerable<T>
      • toMap

        public <TKey> java.util.Map<TKey,​T> toMap​(Function1<T,​TKey> keySelector,
                                                        EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function and key comparer.
        Specified by:
        toMap in interface ExtendedEnumerable<T>
      • toMap

        public <TKey,​TElement> java.util.Map<TKey,​TElement> toMap​(Function1<T,​TKey> keySelector,
                                                                              Function1<T,​TElement> elementSelector)
        Description copied from interface: ExtendedEnumerable
        Creates a Map<TKey, TValue> from an Enumerable<TSource> according to specified key selector and element selector functions.
        Specified by:
        toMap in interface ExtendedEnumerable<T>
      • toMap

        public <TKey,​TElement> java.util.Map<TKey,​TElement> toMap​(Function1<T,​TKey> keySelector,
                                                                              Function1<T,​TElement> elementSelector,
                                                                              EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Creates a Map<TKey, TValue> from an Enumerable<TSource> according to a specified key selector function, a comparer, and an element selector function.
        Specified by:
        toMap in interface ExtendedEnumerable<T>
      • toLookup

        public <TKey> Lookup<TKey,​T> toLookup​(Function1<T,​TKey> keySelector)
        Description copied from interface: ExtendedEnumerable
        Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to a specified key selector function.
        Specified by:
        toLookup in interface ExtendedEnumerable<T>
      • toLookup

        public <TKey,​TElement> Lookup<TKey,​TElement> toLookup​(Function1<T,​TKey> keySelector,
                                                                          Function1<T,​TElement> elementSelector)
        Description copied from interface: ExtendedEnumerable
        Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to specified key selector and element selector functions.
        Specified by:
        toLookup in interface ExtendedEnumerable<T>
      • toLookup

        public <TKey,​TElement> Lookup<TKey,​TElement> toLookup​(Function1<T,​TKey> keySelector,
                                                                          Function1<T,​TElement> elementSelector,
                                                                          EqualityComparer<TKey> comparer)
        Description copied from interface: ExtendedEnumerable
        Creates a Lookup<TKey, TElement> from an Enumerable<TSource> according to a specified key selector function, a comparer and an element selector function.
        Specified by:
        toLookup in interface ExtendedEnumerable<T>
      • zip

        public <T1,​TResult> Enumerable<TResult> zip​(Enumerable<T1> source1,
                                                          Function2<T,​T1,​TResult> resultSelector)
        Description copied from interface: ExtendedEnumerable
        Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.
        Specified by:
        zip in interface ExtendedEnumerable<T>