com.espertech.esper.filter
Class ExprNodeAdapterBase

java.lang.Object
  com.espertech.esper.filter.ExprNodeAdapterBase

Direct Known Subclasses:

ExprNodeAdapterBaseStmtLock, ExprNodeAdapterBaseVariables, ExprNodeAdapterBaseWTableAccess

public class ExprNodeAdapterBase
extends java.lang.Object

Field Summary

protected ExprEvaluatorContext	evaluatorContext
protected ExprNode	exprNode
protected ExprEvaluator	exprNodeEval

Constructor Summary

ExprNodeAdapterBase(int filterSpecId, int filterSpecParamPathNum, ExprNode exprNode, ExprEvaluatorContext evaluatorContext)
Ctor.

Method Summary

boolean	evaluate(EventBean theEvent) Evaluate the boolean expression given the event as a stream zero event.
protected boolean	evaluatePerStream(EventBean[] eventsPerStream)
ExprEvaluatorContext	getEvaluatorContext()
ExprNode	getExprNode()
int	getFilterSpecId()
int	getFilterSpecParamPathNum()
int	getStatementId()
java.lang.String	getStatementName()

Methods inherited from class java.lang.Object

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

Field Detail

exprNode

protected final ExprNode exprNode

exprNodeEval

protected final ExprEvaluator exprNodeEval

evaluatorContext

protected final ExprEvaluatorContext evaluatorContext

Constructor Detail

ExprNodeAdapterBase

public ExprNodeAdapterBase(int filterSpecId,
                           int filterSpecParamPathNum,
                           ExprNode exprNode,
                           ExprEvaluatorContext evaluatorContext)

Ctor.

Parameters:

exprNode - is the boolean expression

Method Detail

evaluate

public boolean evaluate(EventBean theEvent)

Evaluate the boolean expression given the event as a stream zero event.

Parameters:

theEvent - is the stream zero event (current event)

Returns:

boolean result of the expression

evaluatePerStream

protected boolean evaluatePerStream(EventBean[] eventsPerStream)

getStatementName

public java.lang.String getStatementName()

getStatementId

public int getStatementId()

getExprNode

public ExprNode getExprNode()

getFilterSpecId

public int getFilterSpecId()

getFilterSpecParamPathNum

public int getFilterSpecParamPathNum()

getEvaluatorContext

public ExprEvaluatorContext getEvaluatorContext()