com.espertech.esper.epl.expression.ops
Class ExprConcatNodeEvalWNew

java.lang.Object
  com.espertech.esper.epl.expression.ops.ExprConcatNodeEvalWNew

All Implemented Interfaces:

ExprEvaluator

public class ExprConcatNodeEvalWNew
extends java.lang.Object
implements ExprEvaluator

Constructor Summary

ExprConcatNodeEvalWNew(ExprConcatNode parent, ExprEvaluator[] evaluators)

Method Summary

java.lang.Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
protected static java.lang.String	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context, java.lang.StringBuffer buffer, ExprEvaluator[] evaluators, ExprConcatNode parent)
java.lang.Class	getType() Returns the type that the node's evaluate method returns an instance of.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprConcatNodeEvalWNew

public ExprConcatNodeEvalWNew(ExprConcatNode parent,
                              ExprEvaluator[] evaluators)

Method Detail

evaluate

public java.lang.Object evaluate(EventBean[] eventsPerStream,
                                 boolean isNewData,
                                 ExprEvaluatorContext context)

Description copied from interface: ExprEvaluator

Evaluate event tuple and return result.

Specified by:

evaluate in interface ExprEvaluator

Parameters:

eventsPerStream - - event tuple

isNewData - - indicates whether we are dealing with new data (istream) or old data (rstream)

context - context for expression evaluation

Returns:

evaluation result, a boolean value for OR/AND-type evalution nodes.

evaluate

protected static java.lang.String evaluate(EventBean[] eventsPerStream,
                                           boolean isNewData,
                                           ExprEvaluatorContext context,
                                           java.lang.StringBuffer buffer,
                                           ExprEvaluator[] evaluators,
                                           ExprConcatNode parent)

getType

public java.lang.Class getType()

Description copied from interface: ExprEvaluator

Returns the type that the node's evaluate method returns an instance of.

Specified by:

getType in interface ExprEvaluator

Returns:

type returned when evaluated