com.espertech.esper.epl.view
Class OutputConditionPolledExpressionFactory

java.lang.Object
  com.espertech.esper.epl.view.OutputConditionPolledExpressionFactory

All Implemented Interfaces:

OutputConditionPolledFactory

public class OutputConditionPolledExpressionFactory
extends java.lang.Object
implements OutputConditionPolledFactory

Output condition for output rate limiting that handles when-then expressions for controlling output.

Constructor Summary

OutputConditionPolledExpressionFactory(ExprNode whenExpressionNode, java.util.List<OnTriggerSetAssignment> assignments, StatementContext statementContext)
Ctor.

Method Summary

VariableReadWritePackage	getVariableReadWritePackage()
ExprEvaluator	getWhenExpressionNode()
OutputConditionPolled	makeFromState(AgentInstanceContext agentInstanceContext, OutputConditionPolledState state)
OutputConditionPolled	makeNew(AgentInstanceContext agentInstanceContext)

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputConditionPolledExpressionFactory

public OutputConditionPolledExpressionFactory(ExprNode whenExpressionNode,
                                              java.util.List<OnTriggerSetAssignment> assignments,
                                              StatementContext statementContext)
                                       throws ExprValidationException

Ctor.

Parameters:

whenExpressionNode - the expression to evaluate, returning true when to output

assignments - is the optional then-clause variable assignments, or null or empty if none

Throws:

ExprValidationException - when validation fails

Method Detail

makeFromState

public OutputConditionPolled makeFromState(AgentInstanceContext agentInstanceContext,
                                           OutputConditionPolledState state)

Specified by:

makeFromState in interface OutputConditionPolledFactory

makeNew

public OutputConditionPolled makeNew(AgentInstanceContext agentInstanceContext)

Specified by:

makeNew in interface OutputConditionPolledFactory

getWhenExpressionNode

public ExprEvaluator getWhenExpressionNode()

getVariableReadWritePackage

public VariableReadWritePackage getVariableReadWritePackage()