Package io.siddhi.core.util.collection.executor

Class CompareCollectionExecutor

java.lang.Object

io.siddhi.core.util.collection.executor.CompareCollectionExecutor

All Implemented Interfaces:

CollectionExecutor

public class CompareCollectionExecutor
extends Object
implements CollectionExecutor

Implementation of CollectionExecutor which handle compare condition.

Nested Class Summary

Nested classes/interfaces inherited from interface io.siddhi.core.util.collection.executor.CollectionExecutor

CollectionExecutor.Cost

Field Summary

Fields

Modifier and Type	Field	Description
protected ExpressionExecutor	expressionExecutor
protected int	storeEventIndex

Constructor Summary

Constructors

Constructor	Description
CompareCollectionExecutor(ExpressionExecutor expressionExecutor, int storeEventIndex, String attribute, io.siddhi.query.api.expression.condition.Compare.Operator operator, ExpressionExecutor valueExpressionExecutor, CacheTable cacheTable)

Method Summary

Modifier and Type	Method	Description
boolean	contains(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder)	Checks if a matching event exist in indexedEventHolder
void	delete(StateEvent deletingEvent, IndexedEventHolder indexedEventHolder)	Delete matching events exists from indexedEventHolder
StreamEvent	find(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder, StreamEventCloner storeEventCloner)	Find the Events matching to the condition, used on the primary call
Collection<StreamEvent>	findEvents(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder)	Find the Events matching to the condition, used for consecutive calls from parent CollectionExecutor
String	getAttribute()
CollectionExecutor.Cost	getDefaultCost()
ExpressionExecutor	getValueExpressionExecutor()

Methods inherited from class java.lang.Object

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

Field Detail

expressionExecutor

protected ExpressionExecutor expressionExecutor

storeEventIndex

protected int storeEventIndex

Constructor Detail

CompareCollectionExecutor

public CompareCollectionExecutor(ExpressionExecutor expressionExecutor,
                                 int storeEventIndex,
                                 String attribute,
                                 io.siddhi.query.api.expression.condition.Compare.Operator operator,
                                 ExpressionExecutor valueExpressionExecutor,
                                 CacheTable cacheTable)

Method Detail

find

public StreamEvent find(StateEvent matchingEvent,
                        IndexedEventHolder indexedEventHolder,
                        StreamEventCloner storeEventCloner)

Description copied from interface: CollectionExecutor

Find the Events matching to the condition, used on the primary call

Specified by:

find in interface CollectionExecutor

Parameters:

matchingEvent - matching input event

indexedEventHolder - indexed EventHolder containing data

storeEventCloner - store event cloner

Returns:

matched StreamEvent, null if no events matched. If storeEventCloner is null it will return the actual event references.

getValueExpressionExecutor

public ExpressionExecutor getValueExpressionExecutor()

findEvents

public Collection<StreamEvent> findEvents(StateEvent matchingEvent,
                                          IndexedEventHolder indexedEventHolder)

Description copied from interface: CollectionExecutor

Find the Events matching to the condition, used for consecutive calls from parent CollectionExecutor

Specified by:

findEvents in interface CollectionExecutor

Parameters:

matchingEvent - matching input event

indexedEventHolder - indexed EventHolder containing data

Returns:

matched events as Set, null if Exhaustive processing need to be done.

contains

public boolean contains(StateEvent matchingEvent,
                        IndexedEventHolder indexedEventHolder)

Description copied from interface: CollectionExecutor

Checks if a matching event exist in indexedEventHolder

Specified by:

contains in interface CollectionExecutor

Parameters:

matchingEvent - matching input event

indexedEventHolder - indexed EventHolder containing data

Returns:

true if a matching event is available in indexedEventHolder else false

delete

public void delete(StateEvent deletingEvent,
                   IndexedEventHolder indexedEventHolder)

Description copied from interface: CollectionExecutor

Delete matching events exists from indexedEventHolder

Specified by:

delete in interface CollectionExecutor

Parameters:

deletingEvent - matching input event

indexedEventHolder - indexed EventHolder containing data

getDefaultCost

public CollectionExecutor.Cost getDefaultCost()

Specified by:

getDefaultCost in interface CollectionExecutor

getAttribute

public String getAttribute()