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
protected java.lang.String	statementName

Constructor Summary

ExprNodeAdapterBase(java.lang.String statementName, 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)
ExprNode	getExprNode()
java.lang.String	getStatementName()

Methods inherited from class java.lang.Object

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

Field Detail

statementName

protected final java.lang.String statementName

exprNode

protected final ExprNode exprNode

exprNodeEval

protected final ExprEvaluator exprNodeEval

evaluatorContext

protected final ExprEvaluatorContext evaluatorContext

Constructor Detail

ExprNodeAdapterBase

public ExprNodeAdapterBase(java.lang.String statementName,
                           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()

getExprNode

public ExprNode getExprNode()