com.espertech.esper.pattern
Class EvalAndNode

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

All Implemented Interfaces:

EvalNode

public class EvalAndNode
extends EvalNodeBase

This class represents an 'and' operator in the evaluation tree representing an event expressions.

Field Summary

protected EvalNode[]	childNodes
protected EvalAndFactoryNode	factoryNode

Constructor Summary

EvalAndNode(PatternAgentInstanceContext context, EvalAndFactoryNode factoryNode, EvalNode[] childNodes)

Method Summary

EvalNode[]	getChildNodes()
EvalAndFactoryNode	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 EvalAndFactoryNode factoryNode

childNodes

protected final EvalNode[] childNodes

Constructor Detail

EvalAndNode

public EvalAndNode(PatternAgentInstanceContext context,
                   EvalAndFactoryNode factoryNode,
                   EvalNode[] childNodes)

Method Detail

getFactoryNode

public EvalAndFactoryNode getFactoryNode()

getChildNodes

public EvalNode[] getChildNodes()

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