com.espertech.esper.common.internal.epl.pattern.everydistinct

Class EvalEveryDistinctForgeNode

java.lang.Object

com.espertech.esper.common.internal.epl.pattern.core.EvalForgeNodeBase

com.espertech.esper.common.internal.epl.pattern.everydistinct.EvalEveryDistinctForgeNode

All Implemented Interfaces:

EvalForgeNode

public class EvalEveryDistinctForgeNode
extends EvalForgeNodeBase

This class represents an 'every-distinct' operator in the evaluation tree representing an event expression.

Field Summary

Fields inherited from class com.espertech.esper.common.internal.epl.pattern.core.EvalForgeNodeBase

audit, factoryNodeId

Constructor Summary

Constructors

Constructor and Description
EvalEveryDistinctForgeNode(boolean attachPatternText, List<ExprNode> expressions) Ctor.

Method Summary

Modifier and Type	Method and Description
void	collectSelfFilterAndSchedule(List<FilterSpecCompiled> filters, List<ScheduleHandleCallbackProvider> schedules)
List<ExprNode>	getDistinctExpressions() Returns distinct expressions.
List<ExprNode>	getExpressions() Returns all expressions.
PatternExpressionPrecedenceEnum	getPrecedence() Returns precendence.
protected void	inlineCodegen(CodegenMethod method, SAIFFInitializeSymbol symbols, CodegenClassScope classScope)
boolean	isFilterChildNonQuitting()
boolean	isStateful()
protected String	nameOfFactory()
void	setConvertor(MatchedEventConvertorForge convertor) Sets the convertor for matching events to events-per-stream.
void	setDistinctExpressions(List<ExprNode> distinctExpressions, TimePeriodComputeForge timePeriodComputeForge, ExprNode expiryTimeExp)
void	toPrecedenceFreeEPL(StringWriter writer)
String	toString()
protected Class	typeOfFactory()

Methods inherited from class com.espertech.esper.common.internal.epl.pattern.core.EvalForgeNodeBase

addChildNode, addChildNodes, getChildNodes, getFactoryNodeId, isAudit, makeCodegen, setAudit, setFactoryNodeId, toEPL

Methods inherited from class java.lang.Object

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

Constructor Detail

EvalEveryDistinctForgeNode

public EvalEveryDistinctForgeNode(boolean attachPatternText,
                                  List<ExprNode> expressions)

Ctor.

Parameters:

expressions - distinct-value expressions

attachPatternText - whether to attach EPL subexpression text

Method Detail

typeOfFactory

protected Class typeOfFactory()

Specified by:

typeOfFactory in class EvalForgeNodeBase

nameOfFactory

protected String nameOfFactory()

Specified by:

nameOfFactory in class EvalForgeNodeBase

inlineCodegen

protected void inlineCodegen(CodegenMethod method,
                             SAIFFInitializeSymbol symbols,
                             CodegenClassScope classScope)

Specified by:

inlineCodegen in class EvalForgeNodeBase

collectSelfFilterAndSchedule

public void collectSelfFilterAndSchedule(List<FilterSpecCompiled> filters,
                                         List<ScheduleHandleCallbackProvider> schedules)

toString

public final String toString()

Overrides:

toString in class Object

getExpressions

public List<ExprNode> getExpressions()

Returns all expressions.

Returns:

expressions

getDistinctExpressions

public List<ExprNode> getDistinctExpressions()

Returns distinct expressions.

Returns:

expressions

setConvertor

public void setConvertor(MatchedEventConvertorForge convertor)

Sets the convertor for matching events to events-per-stream.

Parameters:

convertor - convertor

setDistinctExpressions

public void setDistinctExpressions(List<ExprNode> distinctExpressions,
                                   TimePeriodComputeForge timePeriodComputeForge,
                                   ExprNode expiryTimeExp)

isFilterChildNonQuitting

public boolean isFilterChildNonQuitting()

isStateful

public boolean isStateful()

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Specified by:

toPrecedenceFreeEPL in class EvalForgeNodeBase

getPrecedence

public PatternExpressionPrecedenceEnum getPrecedence()

Description copied from interface: EvalForgeNode

Returns precendence.

Returns:

precendence