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 Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprConcatNodeEvalWNew(ExprConcatNode parent, ExprEvaluator[] evaluators)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
protected static String	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context, StringBuffer buffer, ExprEvaluator[] evaluators, ExprConcatNode parent)

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 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 String evaluate(EventBean[] eventsPerStream,
                                 boolean isNewData,
                                 ExprEvaluatorContext context,
                                 StringBuffer buffer,
                                 ExprEvaluator[] evaluators,
                                 ExprConcatNode parent)