Package org.apache.calcite.sql.util

Class ListSqlOperatorTable

java.lang.Object

org.apache.calcite.sql.util.ListSqlOperatorTable

All Implemented Interfaces:

SqlOperatorTable

public class ListSqlOperatorTable
extends Object
implements SqlOperatorTable

Implementation of the SqlOperatorTable interface by using a list of operators.

Field Summary

Fields

Modifier and Type	Field	Description
protected com.google.common.collect.ImmutableMultimap<String,SqlOperator>	operators	Contains all (name, operator) pairs.

Constructor Summary

Constructors

Constructor	Description
ListSqlOperatorTable()	Deprecated. Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.
ListSqlOperatorTable(List<SqlOperator> operatorList)	Deprecated. Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.

Method Summary

Modifier and Type	Method	Description
void	add(SqlOperator op)	Deprecated. Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.
protected static com.google.common.collect.ImmutableMultimap<String,SqlOperator>	buildIndex(Iterable<? extends SqlOperator> operators)	Derives a value to be assigned to operators from a given list of operators.
protected static SqlFunctionCategory	category(SqlOperator operator)
List<SqlOperator>	getOperatorList()	Retrieves a list of all functions and operators in this table.
void	lookupOperatorOverloads(SqlIdentifier opName, @Nullable SqlFunctionCategory category, SqlSyntax syntax, List<SqlOperator> operatorList, SqlNameMatcher nameMatcher)	Retrieves a list of operators with a given name and syntax.
protected void	lookUpOperators(String name, boolean caseSensitive, Consumer<SqlOperator> consumer)	Looks up operators, optionally matching case-sensitively.
protected void	setOperators(com.google.common.collect.Multimap<String,SqlOperator> operators)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.calcite.sql.SqlOperatorTable

getOperatorList

Field Details

operators

protected com.google.common.collect.ImmutableMultimap<String,SqlOperator> operators

Contains all (name, operator) pairs. Effectively a sorted immutable multimap.

There can be several operators with the same name (case-insensitive or case-sensitive) and these operators will lie in a contiguous range which we can find efficiently using binary search.

Constructor Details

ListSqlOperatorTable

@Deprecated
public ListSqlOperatorTable()

Deprecated.

Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.

Creates an empty, mutable ListSqlOperatorTable.

ListSqlOperatorTable

@Deprecated
public ListSqlOperatorTable(List<SqlOperator> operatorList)

Deprecated.

Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.

Creates a mutable ListSqlOperatorTable backed by a given list.

Method Details

add

@Deprecated
public void add(SqlOperator op)

Deprecated.

Use SqlOperatorTables.of(java.lang.Iterable<? extends org.apache.calcite.sql.SqlOperator>), which creates an immutable table.

Adds an operator to this table.

lookupOperatorOverloads

public void lookupOperatorOverloads(SqlIdentifier opName,
 @Nullable SqlFunctionCategory category,
 SqlSyntax syntax,
 List<SqlOperator> operatorList,
 SqlNameMatcher nameMatcher)

Description copied from interface: SqlOperatorTable

Retrieves a list of operators with a given name and syntax. For example, by passing SqlSyntax.Function, the returned list is narrowed to only matching SqlFunction objects.

Specified by:

lookupOperatorOverloads in interface SqlOperatorTable

Parameters:

opName - name of operator

category - function category to look up, or null for any matching operator

syntax - syntax type of operator

operatorList - mutable list to which to append matches

nameMatcher - Name matcher

category

protected static SqlFunctionCategory category(SqlOperator operator)

getOperatorList

public List<SqlOperator> getOperatorList()

Description copied from interface: SqlOperatorTable

Retrieves a list of all functions and operators in this table. Used for automated testing. Depending on the table type, may or may not be mutable.

Specified by:

getOperatorList in interface SqlOperatorTable

Returns:

list of SqlOperator objects

setOperators

protected void setOperators(com.google.common.collect.Multimap<String,SqlOperator> operators)

buildIndex

protected static com.google.common.collect.ImmutableMultimap<String,SqlOperator> buildIndex(Iterable<? extends SqlOperator> operators)

Derives a value to be assigned to operators from a given list of operators.

lookUpOperators

protected void lookUpOperators(String name,
 boolean caseSensitive,
 Consumer<SqlOperator> consumer)

Looks up operators, optionally matching case-sensitively.