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java.lang.Objectnet.esper.pattern.EvalNode
net.esper.pattern.EvalGuardNode
public final class EvalGuardNode
This class represents a guard in the evaluation tree representing an event expressions.
Constructor Summary | |
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EvalGuardNode(PatternGuardSpec patternGuardSpec)
Constructor. |
Method Summary | |
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GuardFactory |
getGuardFactory()
Returns the guard factory. |
PatternGuardSpec |
getPatternGuardSpec()
Returns the guard object specification to use for instantiating the guard factory and guard. |
EvalStateNode |
newState(Evaluator parentNode,
MatchedEventMap beginState,
PatternContext context,
Object stateNodeId)
Create the evaluation state node containing the truth value state for each operator in an event expression. |
void |
setGuardFactory(GuardFactory guardFactory)
Supplies the guard factory to the node. |
String |
toString()
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Methods inherited from class net.esper.pattern.EvalNode |
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addChildNode, dumpDebug, getChildNodes, getNodeNumber, recursiveAnalyzeChildNodes, setNodeNumber |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public EvalGuardNode(PatternGuardSpec patternGuardSpec)
patternGuardSpec
- - factory for guard constructionMethod Detail |
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public PatternGuardSpec getPatternGuardSpec()
public void setGuardFactory(GuardFactory guardFactory)
guardFactory
- is the guard factorypublic final EvalStateNode newState(Evaluator parentNode, MatchedEventMap beginState, PatternContext context, Object stateNodeId)
EvalNode
newState
in class EvalNode
parentNode
- is the parent evaluator node that this node indicates a change in truth value tobeginState
- is the container for events that makes up the start statecontext
- is the handle to services required for evaluationstateNodeId
- is the new state object's identifier
public GuardFactory getGuardFactory()
public final String toString()
toString
in class Object
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