Package com.espertech.esper.common.internal.epl.expression.funcs

Class ExprCastNode

java.lang.Object

com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

com.espertech.esper.common.internal.epl.expression.funcs.ExprCastNode

All Implemented Interfaces:

ExprNode, ExprNodeRenderable, ExprValidator

public class ExprCastNode
extends ExprNodeBase

Represents the CAST(expression, type) function is an expression tree.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExprCastNode.CasterParserComputer	Casting and parsing computer.
static interface	ExprCastNode.CasterParserComputerForge	Casting and parsing computer.
static class	ExprCastNode.NonnumericCasterComputer	Casting and parsing computer.
static class	ExprCastNode.NumberCasterComputer	Casting and parsing computer.
static class	ExprCastNode.StringParserComputer	Casting and parsing computer.
static class	ExprCastNode.StringToCalendarWExprFormatComputer
static class	ExprCastNode.StringToCalendarWExprFormatComputerEval
static class	ExprCastNode.StringToCalendarWStaticFormatComputer
static class	ExprCastNode.StringToCalendarWStaticISOFormatComputer
static class	ExprCastNode.StringToDateExprFormatComputerEval
static class	ExprCastNode.StringToDateLongWExprFormatForge
static class	ExprCastNode.StringToDateLongWExprormatEval
static class	ExprCastNode.StringToDateLongWStaticFormat
static class	ExprCastNode.StringToDateWExprFormatComputer
static class	ExprCastNode.StringToDateWStaticFormatComputer
static class	ExprCastNode.StringToDateWStaticISOFormatComputer
static class	ExprCastNode.StringToJava8WExprFormatComputerEval
static class	ExprCastNode.StringToJava8WExprFormatComputerForge
static class	ExprCastNode.StringToJava8WStaticFormatComputer
static class	ExprCastNode.StringToLocalDateIsoFormatComputer
static class	ExprCastNode.StringToLocalDateTimeIsoFormatComputer
static class	ExprCastNode.StringToLocalDateTimeWExprFormatComputerEval
static class	ExprCastNode.StringToLocalDateTimeWExprFormatComputerForge
static class	ExprCastNode.StringToLocalDateTimeWStaticFormatComputer
static class	ExprCastNode.StringToLocalDateWExprFormatComputerEval
static class	ExprCastNode.StringToLocalDateWExprFormatComputerForge
static class	ExprCastNode.StringToLocalDateWStaticFormatComputer
static class	ExprCastNode.StringToLocalTimeIsoFormatComputer
static class	ExprCastNode.StringToLocalTimeWExprFormatComputerEval
static class	ExprCastNode.StringToLocalTimeWExprFormatComputerForge
static class	ExprCastNode.StringToLocalTimeWStaticFormatComputer
static class	ExprCastNode.StringToLongWExprFormatComputerEval
static class	ExprCastNode.StringToLongWExprFormatComputerForge
static class	ExprCastNode.StringToLongWStaticFormatComputer
static class	ExprCastNode.StringToLongWStaticISOFormatComputer
static class	ExprCastNode.StringToZonedDateTimeIsoFormatComputer
static class	ExprCastNode.StringToZonedDateTimeWExprFormatComputerEval
static class	ExprCastNode.StringToZonedDateTimeWExprFormatComputerForge
static class	ExprCastNode.StringToZonedDateTimeWStaticFormatComputer
static class	ExprCastNode.StringXFormComputer	Casting and parsing computer.

Constructor Summary

Constructors

Constructor	Description
ExprCastNode(ClassDescriptor classIdentifierWArray)	Ctor.

Method Summary

Modifier and Type	Method	Description
boolean	equalsNode(ExprNode node, boolean ignoreStreamPrefix)	Return true if a expression node semantically equals the current node, or false if not.
ClassDescriptor	getClassIdentifierWArray()
ExprEvaluator	getExprEvaluator()
ExprForge	getForge()
ExprPrecedenceEnum	getPrecedence()	Returns precedence.
Class	getTargetType()
static EPException	handleParseException(String formatString, String date, Exception ex)
static EPException	handleParseException(DateFormat format, String date, Exception ex)
static EPException	handleParseISOException(String date, ScheduleParameterException ex)
boolean	isConstantResult()
static DateTimeFormatter	stringToDateTimeFormatterSafe(Object format)
static SimpleDateFormat	stringToSimpleDateFormatSafe(Object format)	NOTE: Code-generation-invoked method, method name and parameter order matters
void	toPrecedenceFreeEPL(StringWriter writer, ExprNodeRenderableFlags flags)
ExprNode	validate(ExprValidationContext validationContext)

Methods inherited from class com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

accept, accept, acceptChildnodes, addChildNode, addChildNodes, addChildNodeToFront, checkValidated, checkValidatedException, getChildNodes, replaceUnlistedChildNode, setChildNode, setChildNodes, toEPL

Methods inherited from class java.lang.Object

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

Constructor Details

ExprCastNode

public ExprCastNode(ClassDescriptor classIdentifierWArray)

Ctor.

Parameters:

classIdentifierWArray - the the name of the type to cast to

Method Details

getExprEvaluator

public ExprEvaluator getExprEvaluator()

getForge

public ExprForge getForge()

getClassIdentifierWArray

public ClassDescriptor getClassIdentifierWArray()

validate

public ExprNode validate(ExprValidationContext validationContext)
                  throws ExprValidationException

Throws:

ExprValidationException

isConstantResult

public boolean isConstantResult()

getTargetType

public Class getTargetType()

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer,
 ExprNodeRenderableFlags flags)

Specified by:

toPrecedenceFreeEPL in class ExprNodeBase

getPrecedence

public ExprPrecedenceEnum getPrecedence()

Description copied from interface: ExprNode

Returns precedence.

Returns:

precedence

equalsNode

public boolean equalsNode(ExprNode node,
 boolean ignoreStreamPrefix)

Description copied from interface: ExprNode

Return true if a expression node semantically equals the current node, or false if not.

Concrete implementations should compare the type and any additional information that impact the evaluation of a node.

Parameters:

node - to compare to

ignoreStreamPrefix - when the equals-comparison can ignore prefix of event properties

Returns:

true if semantically equal, or false if not equals

handleParseException

public static EPException handleParseException(DateFormat format,
 String date,
 Exception ex)

handleParseException

public static EPException handleParseException(String formatString,
 String date,
 Exception ex)

handleParseISOException

public static EPException handleParseISOException(String date,
 ScheduleParameterException ex)

stringToSimpleDateFormatSafe

public static SimpleDateFormat stringToSimpleDateFormatSafe(Object format)

NOTE: Code-generation-invoked method, method name and parameter order matters

Parameters:

format - format

Returns:

date format

stringToDateTimeFormatterSafe

public static DateTimeFormatter stringToDateTimeFormatterSafe(Object format)