com.espertech.esper.epl.declexpr
Class ExprDeclaredEvalBase
java.lang.Object
com.espertech.esper.epl.declexpr.ExprDeclaredEvalBase
- All Implemented Interfaces:
- ExprEvaluator, ExprEvaluatorEnumeration
- Direct Known Subclasses:
- ExprDeclaredEvalNoRewrite, ExprDeclaredEvalRewrite
public abstract class ExprDeclaredEvalBase
- extends java.lang.Object
- implements ExprEvaluator, ExprEvaluatorEnumeration
Method Summary |
java.lang.Object |
evaluate(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
Evaluate event tuple and return result. |
EventBean |
evaluateGetEventBean(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
|
java.util.Collection<EventBean> |
evaluateGetROCollectionEvents(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
|
java.util.Collection |
evaluateGetROCollectionScalar(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
|
java.lang.Class |
getComponentTypeCollection()
|
abstract EventBean[] |
getEventsPerStreamRewritten(EventBean[] eventsPerStream)
|
java.util.Map<java.lang.String,java.lang.Object> |
getEventType()
|
EventType |
getEventTypeCollection(EventAdapterService eventAdapterService)
|
EventType |
getEventTypeSingle(EventAdapterService eventAdapterService,
java.lang.String statementId)
|
ExprEvaluator |
getInnerEvaluator()
|
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 |
ExprDeclaredEvalBase
public ExprDeclaredEvalBase(ExprEvaluator innerEvaluator,
ExpressionDeclItem prototype,
boolean isCache)
getEventsPerStreamRewritten
public abstract EventBean[] getEventsPerStreamRewritten(EventBean[] eventsPerStream)
getInnerEvaluator
public ExprEvaluator getInnerEvaluator()
getEventType
public java.util.Map<java.lang.String,java.lang.Object> getEventType()
throws ExprValidationException
- Specified by:
getEventType
in interface ExprEvaluator
- Throws:
ExprValidationException
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
evaluate
public final 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 tupleisNewData
- - 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.
evaluateGetROCollectionEvents
public final java.util.Collection<EventBean> evaluateGetROCollectionEvents(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
- Specified by:
evaluateGetROCollectionEvents
in interface ExprEvaluatorEnumeration
evaluateGetROCollectionScalar
public java.util.Collection evaluateGetROCollectionScalar(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
- Specified by:
evaluateGetROCollectionScalar
in interface ExprEvaluatorEnumeration
getComponentTypeCollection
public java.lang.Class getComponentTypeCollection()
throws ExprValidationException
- Specified by:
getComponentTypeCollection
in interface ExprEvaluatorEnumeration
- Throws:
ExprValidationException
getEventTypeCollection
public EventType getEventTypeCollection(EventAdapterService eventAdapterService)
throws ExprValidationException
- Specified by:
getEventTypeCollection
in interface ExprEvaluatorEnumeration
- Throws:
ExprValidationException
getEventTypeSingle
public EventType getEventTypeSingle(EventAdapterService eventAdapterService,
java.lang.String statementId)
throws ExprValidationException
- Specified by:
getEventTypeSingle
in interface ExprEvaluatorEnumeration
- Throws:
ExprValidationException
evaluateGetEventBean
public EventBean evaluateGetEventBean(EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext context)
- Specified by:
evaluateGetEventBean
in interface ExprEvaluatorEnumeration