Package org.apache.qpid.server.query.engine.parsing.factory

Class SetExpressionFactory

java.lang.Object

org.apache.qpid.server.query.engine.parsing.factory.SetExpressionFactory

public final class SetExpressionFactory
extends Object

Factory creating set expressions

Method Summary

Modifier and Type	Method	Description
static <T> IntersectExpression<T>	intersect(boolean distinct, ExpressionNode<T,Stream<Map<String,Object>>> left, ExpressionNode<T,Stream<Map<String,Object>>> right)	Creates an IntersectExpression instance
static <T> MinusExpression<T>	minus(boolean distinct, ExpressionNode<T,Stream<Map<String,Object>>> left, ExpressionNode<T,Stream<Map<String,Object>>> right)	Creates a MinusExpression instance
static <T> UnionExpression<T>	union(boolean distinct, ExpressionNode<T,Stream<Map<String,Object>>> left, ExpressionNode<T,Stream<Map<String,Object>>> right)	Creates an UnionExpression instance

Methods inherited from class java.lang.Object

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

Method Detail

intersect

public static <T> IntersectExpression<T> intersect(boolean distinct,
                                                   ExpressionNode<T,Stream<Map<String,Object>>> left,
                                                   ExpressionNode<T,Stream<Map<String,Object>>> right)

Creates an IntersectExpression instance

Type Parameters:

T - Input parameter type

Parameters:

distinct - Distinct boolean flag

left - Left expression

right - Right expression

Returns:

IntersectExpression instance

minus

public static <T> MinusExpression<T> minus(boolean distinct,
                                           ExpressionNode<T,Stream<Map<String,Object>>> left,
                                           ExpressionNode<T,Stream<Map<String,Object>>> right)

Creates a MinusExpression instance

Type Parameters:

T - Input parameter type

Parameters:

distinct - Distinct boolean flag

left - Left expression

right - Right expression

Returns:

MinusExpression instance

union

public static <T> UnionExpression<T> union(boolean distinct,
                                           ExpressionNode<T,Stream<Map<String,Object>>> left,
                                           ExpressionNode<T,Stream<Map<String,Object>>> right)

Creates an UnionExpression instance

Type Parameters:

T - Input parameter type

Parameters:

distinct - Distinct boolean flag

left - Left expression

right - Right expression

Returns:

UnionExpression instance