Package org.apache.calcite.linq4j.tree

Class FunctionExpression<F extends Function<?>>

java.lang.Object

org.apache.calcite.linq4j.tree.AbstractNode

org.apache.calcite.linq4j.tree.Expression

org.apache.calcite.linq4j.tree.LambdaExpression

org.apache.calcite.linq4j.tree.FunctionExpression<F>

Type Parameters:

F - Function type

All Implemented Interfaces:

Node

public final class FunctionExpression<F extends Function<?>>
extends LambdaExpression

Represents a strongly typed lambda expression as a data structure in the form of an expression tree. This class cannot be inherited.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FunctionExpression.Invokable	Function that can be invoked with a variable number of arguments.

Field Summary

Fields

Modifier and Type	Field	Description
final @Nullable BlockStatement	body
final @Nullable F	function
final List<ParameterExpression>	parameterList

Fields inherited from class org.apache.calcite.linq4j.tree.AbstractNode

nodeType, type

Constructor Summary

Constructors

Constructor	Description
FunctionExpression(F function)
FunctionExpression(Class<F> type, BlockStatement body, List<ParameterExpression> parameters)

Method Summary

Modifier and Type	Method	Description
Expression	accept(Shuttle shuttle)
<R> R	accept(Visitor<R> visitor)
FunctionExpression.Invokable	compile()
boolean	equals(@Nullable Object o)
F	getFunction()
int	hashCode()

Methods inherited from class org.apache.calcite.linq4j.tree.Expression

canReduce

Methods inherited from class org.apache.calcite.linq4j.tree.AbstractNode

accept, evaluate, getNodeType, getType, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

function

public final @Nullable F extends Function<?> function

body

public final @Nullable BlockStatement body

parameterList

public final List<ParameterExpression> parameterList

Constructor Details

FunctionExpression

public FunctionExpression(F function)

FunctionExpression

public FunctionExpression(Class<F> type,
 BlockStatement body,
 List<ParameterExpression> parameters)

Method Details

accept

public Expression accept(Shuttle shuttle)

Specified by:

accept in interface Node

Overrides:

accept in class LambdaExpression

accept

public <R> R accept(Visitor<R> visitor)

Specified by:

accept in interface Node

Overrides:

accept in class LambdaExpression

compile

public FunctionExpression.Invokable compile()

getFunction

public F getFunction()

equals

public boolean equals(@Nullable Object o)

Overrides:

equals in class AbstractNode

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractNode