com.espertech.esper.epl.expression.subquery
Class SubselectEvalStrategyFactory

java.lang.Object
  com.espertech.esper.epl.expression.subquery.SubselectEvalStrategyFactory

public class SubselectEvalStrategyFactory
extends java.lang.Object

Factory for subselect evaluation strategies.

Constructor Summary

SubselectEvalStrategyFactory()

Method Summary

static SubselectEvalStrategy

createStrategy(ExprSubselectNode subselectExpression, boolean isNot, boolean isAll, boolean isAny, RelationalOpEnum relationalOp) Create a strategy.

Methods inherited from class java.lang.Object

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

Constructor Detail

SubselectEvalStrategyFactory

public SubselectEvalStrategyFactory()

Method Detail

createStrategy

public static SubselectEvalStrategy createStrategy(ExprSubselectNode subselectExpression,
                                                   boolean isNot,
                                                   boolean isAll,
                                                   boolean isAny,
                                                   RelationalOpEnum relationalOp)
                                            throws ExprValidationException

Create a strategy.

Parameters:

subselectExpression - expression node

isNot - true if negated

isAll - true for ALL

isAny - true for ANY

relationalOp - relational op, if any

Returns:

strategy

Throws:

ExprValidationException - if expression validation fails