Package 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	Description
protected MatchedEventConvertor	convertor
static final EPTypeClass	EPTYPE
protected ExprEvaluator	expression

Constructor Summary

Constructors

Constructor	Description
ExpressionGuardFactory()

Method Summary

Modifier and Type	Method	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 Details

EPTYPE

public static final EPTypeClass EPTYPE

expression

protected ExprEvaluator expression

convertor

protected MatchedEventConvertor convertor

Constructor Details

ExpressionGuardFactory

public ExpressionGuardFactory()

Method Details

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