com.espertech.esper.epl.expression.funcs

Class ExprCastNode.StringToDateLongWDynamicFormat

java.lang.Object

com.espertech.esper.epl.expression.funcs.ExprCastNode.StringToDateLongWDynamicFormat

All Implemented Interfaces:

ExprCastNode.CasterParserComputer

Direct Known Subclasses:

ExprCastNode.StringToCalendarWDynamicFormatComputer, ExprCastNode.StringToDateWDynamicFormatComputer, ExprCastNode.StringToLongWDynamicFormatComputer

Enclosing class:

ExprCastNode

public abstract static class ExprCastNode.StringToDateLongWDynamicFormat
extends Object
implements ExprCastNode.CasterParserComputer

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StringToDateLongWDynamicFormat(ExprEvaluator dateFormatEval)

Method Summary

Modifier and Type	Method and Description
Object	compute(Object input, EventBean[] eventsPerStream, boolean newData, ExprEvaluatorContext exprEvaluatorContext) Compute an result performing casting and parsing.
protected abstract Object	computeFromFormat(String dateFormat, SimpleDateFormat format, Object input)
boolean	isConstantForConstInput()

Methods inherited from class java.lang.Object

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

Constructor Detail

StringToDateLongWDynamicFormat

protected StringToDateLongWDynamicFormat(ExprEvaluator dateFormatEval)

Method Detail

computeFromFormat

protected abstract Object computeFromFormat(String dateFormat,
                                            SimpleDateFormat format,
                                            Object input)
                                     throws ParseException

Throws:

ParseException

isConstantForConstInput

public boolean isConstantForConstInput()

Specified by:

isConstantForConstInput in interface ExprCastNode.CasterParserComputer

compute

public Object compute(Object input,
                      EventBean[] eventsPerStream,
                      boolean newData,
                      ExprEvaluatorContext exprEvaluatorContext)

Description copied from interface: ExprCastNode.CasterParserComputer

Compute an result performing casting and parsing.

Specified by:

compute in interface ExprCastNode.CasterParserComputer

Parameters:

input - to process

eventsPerStream - events per stream

newData - new data indicator

exprEvaluatorContext - evaluation context

Returns:

cast or parse result