com.espertech.esper.pattern
Class EvalFilterNode

java.lang.Object
  com.espertech.esper.pattern.EvalNodeBase
      com.espertech.esper.pattern.EvalFilterNode

All Implemented Interfaces:

EvalNode

public class EvalFilterNode
extends EvalNodeBase

This class represents a filter of events in the evaluation tree representing any event expressions.

Field Summary

protected EvalFilterFactoryNode

factoryNode

Constructor Summary

EvalFilterNode(PatternAgentInstanceContext context, EvalFilterFactoryNode factoryNode)

Method Summary

FilterValueSetParam[][]	getAddendumFilters()
EvalFilterFactoryNode	getFactoryNode()
EvalStateNode	newState(Evaluator parentNode, EvalStateNodeNumber stateNodeNumber, long stateNodeId) Create the evaluation state node containing the truth value state for each operator in an event expression.

Methods inherited from class com.espertech.esper.pattern.EvalNodeBase

getContext

Methods inherited from class java.lang.Object

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

Field Detail

factoryNode

protected final EvalFilterFactoryNode factoryNode

Constructor Detail

EvalFilterNode

public EvalFilterNode(PatternAgentInstanceContext context,
                      EvalFilterFactoryNode factoryNode)

Method Detail

getFactoryNode

public EvalFilterFactoryNode getFactoryNode()

getAddendumFilters

public FilterValueSetParam[][] getAddendumFilters()

newState

public EvalStateNode newState(Evaluator parentNode,
                              EvalStateNodeNumber stateNodeNumber,
                              long stateNodeId)

Description copied from class: EvalNodeBase

Create the evaluation state node containing the truth value state for each operator in an event expression.

Specified by:

newState in interface EvalNode

Specified by:

newState in class EvalNodeBase

Parameters:

parentNode - is the parent evaluator node that this node indicates a change in truth value to

Returns:

state node containing the truth value state for the operator