com.espertech.esper.common.internal.epl.pattern.core

Class EvalRootNode

java.lang.Object

com.espertech.esper.common.internal.epl.pattern.core.EvalRootNode

All Implemented Interfaces:

EvalNode

public class EvalRootNode
extends Object
implements EvalNode

This class is always the root node in the evaluation tree representing an event expression. It hold the handle to the EPStatement implementation for notifying when matches are found.

Field Summary

Fields

Modifier and Type	Field and Description
protected AgentInstanceContext	agentInstanceContext
protected EvalNode	childNode
protected EvalRootFactoryNode	factoryNode

Constructor Summary

Constructors

Constructor and Description
EvalRootNode(PatternAgentInstanceContext context, EvalRootFactoryNode factoryNode, EvalNode childNode)

Method Summary

Modifier and Type	Method and Description
AgentInstanceContext	getAgentInstanceContext()
EvalNode	getChildNode()
EvalRootFactoryNode	getFactoryNode()
EvalStateNode	newState(Evaluator parentNode)
EvalRootState	start(PatternMatchCallback callback, PatternContext context, boolean isRecoveringResilient)
EvalRootState	start(PatternMatchCallback callback, PatternContext context, MatchedEventMap beginState, boolean isRecoveringResilient)

Methods inherited from class java.lang.Object

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

Field Detail

factoryNode

protected final EvalRootFactoryNode factoryNode

childNode

protected final EvalNode childNode

agentInstanceContext

protected final AgentInstanceContext agentInstanceContext

Constructor Detail

EvalRootNode

public EvalRootNode(PatternAgentInstanceContext context,
                    EvalRootFactoryNode factoryNode,
                    EvalNode childNode)

Method Detail

getChildNode

public EvalNode getChildNode()

getFactoryNode

public EvalRootFactoryNode getFactoryNode()

newState

public EvalStateNode newState(Evaluator parentNode)

Specified by:

newState in interface EvalNode

start

public EvalRootState start(PatternMatchCallback callback,
                           PatternContext context,
                           boolean isRecoveringResilient)

start

public EvalRootState start(PatternMatchCallback callback,
                           PatternContext context,
                           MatchedEventMap beginState,
                           boolean isRecoveringResilient)

getAgentInstanceContext

public AgentInstanceContext getAgentInstanceContext()