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java.lang.Objectnet.esper.pattern.EvalNode
net.esper.pattern.EvalFilterNode
public final class EvalFilterNode
This class represents a filter of events in the evaluation tree representing any event expressions.
Constructor Summary | |
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EvalFilterNode(FilterSpec filterSpecification,
String eventAsName)
Constructor. |
Method Summary | |
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String |
getEventAsName()
Returns the tag for any matching events to this filter, or null since tags are optional. |
FilterSpec |
getFilterSpec()
Returns filter specification. |
EvalStateNode |
newState(Evaluator parentNode,
MatchedEventMap beginState,
PatternContext context)
Create the evaluation state node containing the truth value state for each operator in an event expression. |
String |
toString()
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Methods inherited from class net.esper.pattern.EvalNode |
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addChildNode, dumpDebug, getChildNodes |
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 EvalFilterNode(FilterSpec filterSpecification, String eventAsName)
filterSpecification
- specifies the filter propertieseventAsName
- is the name to use for adding matching events to the MatchedEventMap
table used when indicating truth value of true.Method Detail |
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public final EvalStateNode newState(Evaluator parentNode, MatchedEventMap beginState, PatternContext context)
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 evaluation
public final FilterSpec getFilterSpec()
public final String getEventAsName()
public final String toString()
toString
in class Object
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