com.espertech.esper.pattern
Class EvalFollowedByNode

java.lang.Object
  extended by com.espertech.esper.pattern.EvalNode
      extended by com.espertech.esper.pattern.EvalFollowedByNode
All Implemented Interfaces:
MetaDefItem, Serializable

public final class EvalFollowedByNode
extends EvalNode

This class represents a followed-by operator in the evaluation tree representing any event expressions.

See Also:
Serialized Form

Constructor Summary
EvalFollowedByNode()
           
 
Method Summary
 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.
 String toString()
           
 
Methods inherited from class com.espertech.esper.pattern.EvalNode
addChildNode, dumpDebug, getChildNodes, getNodeNumber, recursiveAnalyzeChildNodes, setNodeNumber
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

EvalFollowedByNode

public EvalFollowedByNode()
Method Detail

newState

public final EvalStateNode newState(Evaluator parentNode,
                                    MatchedEventMap beginState,
                                    PatternContext context,
                                    Object stateNodeId)
Description copied from class: EvalNode
Create the evaluation state node containing the truth value state for each operator in an event expression.

Specified by:
newState in class EvalNode
Parameters:
parentNode - is the parent evaluator node that this node indicates a change in truth value to
beginState - is the container for events that makes up the start state
context - is the handle to services required for evaluation
stateNodeId - is the new state object's identifier
Returns:
state node containing the truth value state for the operator

toString

public final String toString()
Overrides:
toString in class Object

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