Package io.siddhi.core.table.holder

Class IndexEventHolder

java.lang.Object

io.siddhi.core.table.holder.IndexEventHolder

All Implemented Interfaces:

EventHolder, IndexedEventHolder, Serializable

Direct Known Subclasses:

IndexEventHolderForCache

public class IndexEventHolder
extends Object
implements IndexedEventHolder, Serializable

EventHolder implementation where events will be indexed and stored. This will offer faster access compared to other EventHolder implementations. User can only add unique events based on a given primary key.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,TreeMap<Object,Set<StreamEvent>>>	indexData
protected String	primaryKeyAttributes
protected Map<Object,StreamEvent>	primaryKeyData

Constructor Summary

Constructors

Constructor	Description
IndexEventHolder(StreamEventFactory tableStreamEventFactory, StreamEventConverter eventConverter, PrimaryKeyReferenceHolder[] primaryKeyReferenceHolders, boolean isPrimaryNumeric, Map<String,Integer> indexMetaData, io.siddhi.query.api.definition.AbstractDefinition tableDefinition, SiddhiAppContext siddhiAppContext)

Method Summary

Modifier and Type	Method	Description
void	add(ComplexEventChunk<StreamEvent> addingEventChunk)
boolean	containsEventSet(String attribute, io.siddhi.query.api.expression.condition.Compare.Operator operator, Object value)
void	delete(String attribute, io.siddhi.query.api.expression.condition.Compare.Operator operator, Object value)
void	deleteAll()
void	deleteAll(Collection<StreamEvent> storeEventSet)
void	deleteEvent(Object key)
Collection<StreamEvent>	findEvents(String attribute, io.siddhi.query.api.expression.condition.Compare.Operator operator, Object value)
Collection<StreamEvent>	getAllEvents()
Set<Object>	getAllPrimaryKeyValues()
StreamEvent	getEvent(Object key)
PrimaryKeyReferenceHolder[]	getPrimaryKeyReferenceHolders()
Snapshot	getSnapshot()
protected void	handleCachePolicyAttributeUpdate(StreamEvent streamEvent)
boolean	isAttributeIndexed(int position)
boolean	isAttributeIndexed(String attribute)
boolean	isMultiPrimaryKeyAttribute(String attributeName)
void	overwrite(StreamEvent streamEvent)
void	replace(Object key, StreamEvent streamEvent)
void	restore(SnapshotStateList snapshotStatelist)
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

primaryKeyData

protected final Map<Object,StreamEvent> primaryKeyData

indexData

protected final Map<String,TreeMap<Object,Set<StreamEvent>>> indexData

primaryKeyAttributes

protected String primaryKeyAttributes

Constructor Detail

IndexEventHolder

public IndexEventHolder(StreamEventFactory tableStreamEventFactory,
                        StreamEventConverter eventConverter,
                        PrimaryKeyReferenceHolder[] primaryKeyReferenceHolders,
                        boolean isPrimaryNumeric,
                        Map<String,Integer> indexMetaData,
                        io.siddhi.query.api.definition.AbstractDefinition tableDefinition,
                        SiddhiAppContext siddhiAppContext)

Method Detail

replace

public void replace(Object key,
                    StreamEvent streamEvent)

getAllPrimaryKeyValues

public Set<Object> getAllPrimaryKeyValues()

Specified by:

getAllPrimaryKeyValues in interface IndexedEventHolder

getPrimaryKeyReferenceHolders

public PrimaryKeyReferenceHolder[] getPrimaryKeyReferenceHolders()

Specified by:

getPrimaryKeyReferenceHolders in interface IndexedEventHolder

isMultiPrimaryKeyAttribute

public boolean isMultiPrimaryKeyAttribute(String attributeName)

Specified by:

isMultiPrimaryKeyAttribute in interface IndexedEventHolder

isAttributeIndexed

public boolean isAttributeIndexed(String attribute)

Specified by:

isAttributeIndexed in interface IndexedEventHolder

isAttributeIndexed

public boolean isAttributeIndexed(int position)

Specified by:

isAttributeIndexed in interface IndexedEventHolder

add

public void add(ComplexEventChunk<StreamEvent> addingEventChunk)

Specified by:

add in interface EventHolder

handleCachePolicyAttributeUpdate

protected void handleCachePolicyAttributeUpdate(StreamEvent streamEvent)

overwrite

public void overwrite(StreamEvent streamEvent)

Specified by:

overwrite in interface IndexedEventHolder

getAllEvents

public Collection<StreamEvent> getAllEvents()

Specified by:

getAllEvents in interface IndexedEventHolder

getEvent

public StreamEvent getEvent(Object key)

deleteEvent

public void deleteEvent(Object key)

findEvents

public Collection<StreamEvent> findEvents(String attribute,
                                          io.siddhi.query.api.expression.condition.Compare.Operator operator,
                                          Object value)

Specified by:

findEvents in interface IndexedEventHolder

deleteAll

public void deleteAll()

Specified by:

deleteAll in interface EventHolder

Specified by:

deleteAll in interface IndexedEventHolder

deleteAll

public void deleteAll(Collection<StreamEvent> storeEventSet)

Specified by:

deleteAll in interface IndexedEventHolder

delete

public void delete(String attribute,
                   io.siddhi.query.api.expression.condition.Compare.Operator operator,
                   Object value)

Specified by:

delete in interface IndexedEventHolder

containsEventSet

public boolean containsEventSet(String attribute,
                                io.siddhi.query.api.expression.condition.Compare.Operator operator,
                                Object value)

Specified by:

containsEventSet in interface IndexedEventHolder

getSnapshot

public Snapshot getSnapshot()

Specified by:

getSnapshot in interface EventHolder

restore

public void restore(SnapshotStateList snapshotStatelist)

Specified by:

restore in interface EventHolder

size

public int size()

Specified by:

size in interface EventHolder