com.espertech.esper.rowregex
Class EventRowRegexNFAViewFactory

java.lang.Object
  com.espertech.esper.view.ViewFactorySupport
      com.espertech.esper.rowregex.EventRowRegexNFAViewFactory

All Implemented Interfaces:

ViewFactory

public class EventRowRegexNFAViewFactory
extends ViewFactorySupport

View factory for match-recognize view.

Constructor Summary

EventRowRegexNFAViewFactory(ViewFactoryChain viewChain, MatchRecognizeSpec matchRecognizeSpec, AgentInstanceContext agentInstanceContext, boolean isUnbound, java.lang.annotation.Annotation[] annotations)
Ctor.

Method Summary

void	attach(EventType parentEventType, StatementContext statementContext, ViewFactory optionalParentFactory, java.util.List<ViewFactory> parentViewFactories) Attaches the factory to a parent event type such that the factory can validate attach requirements and determine an event type for resulting views.
java.util.List<AggregationServiceAggExpressionDesc>	getAggregationExpressions()
AggregationServiceMatchRecognize	getAggregationService()
EventType	getEventType() Returns the event type that the view that is created by the view factory would create for events posted by the view.
java.util.Set<ExprPreviousMatchRecognizeNode>	getPreviousExprNodes()
java.lang.String	getViewName() Returns the name of the view, not namespace+name but readable name.
View	makeView(AgentInstanceViewFactoryChainContext agentInstanceViewFactoryContext) Create a new view.
void	setViewParameters(ViewFactoryContext viewFactoryContext, java.util.List<ExprNode> viewParameters) Indicates user EPL query view parameters to the view factory.

Methods inherited from class com.espertech.esper.view.ViewFactorySupport

assertReturnsNonConstant, canReuse, evaluateAssertNoProperties, getViewParamMessageNumericOrTimePeriod, validate, validateAndEvaluate, validateAndEvaluate, validateAndEvaluateExpr, validateExpr

Methods inherited from class java.lang.Object

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

Constructor Detail

EventRowRegexNFAViewFactory

public EventRowRegexNFAViewFactory(ViewFactoryChain viewChain,
                                   MatchRecognizeSpec matchRecognizeSpec,
                                   AgentInstanceContext agentInstanceContext,
                                   boolean isUnbound,
                                   java.lang.annotation.Annotation[] annotations)
                            throws ExprValidationException

Ctor.

Parameters:

viewChain - views

matchRecognizeSpec - specification

isUnbound - true for unbound stream

annotations - annotations

Throws:

ExprValidationException - if validation fails

Method Detail

setViewParameters

public void setViewParameters(ViewFactoryContext viewFactoryContext,
                              java.util.List<ExprNode> viewParameters)
                       throws ViewParameterException

Description copied from interface: ViewFactory

Indicates user EPL query view parameters to the view factory.

Parameters:

viewFactoryContext - supplied context information for the view factory

viewParameters - is the objects representing the view parameters

Throws:

ViewParameterException - if the parameters don't match view parameter needs

attach

public void attach(EventType parentEventType,
                   StatementContext statementContext,
                   ViewFactory optionalParentFactory,
                   java.util.List<ViewFactory> parentViewFactories)
            throws ViewParameterException

Description copied from interface: ViewFactory

Attaches the factory to a parent event type such that the factory can validate attach requirements and determine an event type for resulting views.

Parameters:

parentEventType - is the parent event stream's or view factory's event type

statementContext - contains the services needed for creating a new event type

optionalParentFactory - is null when there is no parent view factory, or contains the parent view factory

parentViewFactories - is a list of all the parent view factories or empty list if there are none

Throws:

ViewParameterException - is thrown to indicate that this view factories's view would not play with the parent view factories view

makeView

public View makeView(AgentInstanceViewFactoryChainContext agentInstanceViewFactoryContext)

Description copied from interface: ViewFactory

Create a new view.

getEventType

public EventType getEventType()

Description copied from interface: ViewFactory

Returns the event type that the view that is created by the view factory would create for events posted by the view.

Returns:

event type of view's created by the view factory

getAggregationExpressions

public java.util.List<AggregationServiceAggExpressionDesc> getAggregationExpressions()

getAggregationService

public AggregationServiceMatchRecognize getAggregationService()

getPreviousExprNodes

public java.util.Set<ExprPreviousMatchRecognizeNode> getPreviousExprNodes()

getViewName

public java.lang.String getViewName()

Description copied from interface: ViewFactory

Returns the name of the view, not namespace+name but readable name.

Returns:

readable name