com.espertech.esper.common.internal.epl.pattern.guard

Class ExpressionGuardFactory

java.lang.Object

com.espertech.esper.common.internal.epl.pattern.guard.ExpressionGuardFactory

All Implemented Interfaces:

GuardFactory

public class ExpressionGuardFactory
extends Object
implements GuardFactory

Field Summary

Fields

Modifier and Type	Field and Description
protected MatchedEventConvertor	convertor
protected ExprEvaluator	expression

Constructor Summary

Constructors

Constructor and Description
ExpressionGuardFactory()

Method Summary

Modifier and Type	Method and Description
Guard	makeGuard(PatternAgentInstanceContext context, MatchedEventMap beginState, Quitable quitable, Object guardState) Constructs a guard instance.
void	setConvertor(MatchedEventConvertor convertor)
void	setExpression(ExprEvaluator expression)

Methods inherited from class java.lang.Object

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

Field Detail

expression

protected ExprEvaluator expression

convertor

protected MatchedEventConvertor convertor

Constructor Detail

ExpressionGuardFactory

public ExpressionGuardFactory()

Method Detail

setExpression

public void setExpression(ExprEvaluator expression)

setConvertor

public void setConvertor(MatchedEventConvertor convertor)

makeGuard

public Guard makeGuard(PatternAgentInstanceContext context,
                       MatchedEventMap beginState,
                       Quitable quitable,
                       Object guardState)

Description copied from interface: GuardFactory

Constructs a guard instance.

Specified by:

makeGuard in interface GuardFactory

Parameters:

context - - services for use by guard

beginState - - the prior matching events

quitable - - to use for indicating the guard has quit

guardState - - state node for guard

Returns:

guard instance