org.eclipse.viatra.query.runtime.localsearch.matcher.integration

Class LocalSearchBackend

java.lang.Object

org.eclipse.viatra.query.runtime.localsearch.matcher.integration.LocalSearchBackend

All Implemented Interfaces:

IQueryBackend

public class LocalSearchBackend
extends java.lang.Object
implements IQueryBackend

Constructor Summary

Constructors

Constructor and Description
LocalSearchBackend(IQueryBackendContext context)

Method Summary

Modifier and Type	Method and Description
void	addAdapter(ILocalSearchAdapter adapter)
void	dispose() Disposes the query backend.
void	flushUpdates() Propagates all pending updates in this query backend.
IQueryBackendContext	getBackendContext()
com.google.common.collect.Table<org.eclipse.emf.ecore.EDataType,org.eclipse.emf.ecore.EClass,java.util.Set<org.eclipse.emf.ecore.EAttribute>>	geteAttributesByTypeForEClass()
IQueryBackendHintProvider	getHintProvider()
QueryAnalyzer	getQueryAnalyzer()
IQueryResultProvider	getResultProvider(PQuery query) Returns a result provider for a given query.
IQueryResultProvider	getResultProvider(PQuery query, QueryEvaluationHint hints) Returns a result provider for a given query.
IQueryRuntimeContext	getRuntimeContext()
boolean	isCaching()
IQueryResultProvider	peekExistingResultProvider(PQuery query) Returns an existing result provider for a given query, if it was previously constructed, returns null otherwise.
void	removeAdapter(ILocalSearchAdapter adapter)

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalSearchBackend

public LocalSearchBackend(IQueryBackendContext context)

Since:

1.5

Method Detail

flushUpdates

public void flushUpdates()

Description copied from interface: IQueryBackend

Propagates all pending updates in this query backend. The implementation of this method is optional, and it can be ignored entirely if the backend does not delay updates.

Specified by:

flushUpdates in interface IQueryBackend

getResultProvider

public IQueryResultProvider getResultProvider(PQuery query)
                                       throws QueryProcessingException

Description copied from interface: IQueryBackend

Returns a result provider for a given query. Repeated calls may return the same instance.

Specified by:

getResultProvider in interface IQueryBackend

Throws:

QueryProcessingException

getResultProvider

public IQueryResultProvider getResultProvider(PQuery query,
                                              QueryEvaluationHint hints)
                                       throws QueryProcessingException

Description copied from interface: IQueryBackend

Returns a result provider for a given query. Repeated calls may return the same instance.

Specified by:

getResultProvider in interface IQueryBackend

Throws:

QueryProcessingException

Since:

1.4

dispose

public void dispose()

Description copied from interface: IQueryBackend

Disposes the query backend.

Specified by:

dispose in interface IQueryBackend

isCaching

public boolean isCaching()

Specified by:

isCaching in interface IQueryBackend

Returns:

true iff this backend is incremental, i.e. it caches the results of queries for quick retrieval, and can provide update notifications on result set changes.

peekExistingResultProvider

public IQueryResultProvider peekExistingResultProvider(PQuery query)

Description copied from interface: IQueryBackend

Returns an existing result provider for a given query, if it was previously constructed, returns null otherwise. Will not construct and initialize new result providers.

Specified by:

peekExistingResultProvider in interface IQueryBackend

geteAttributesByTypeForEClass

public com.google.common.collect.Table<org.eclipse.emf.ecore.EDataType,org.eclipse.emf.ecore.EClass,java.util.Set<org.eclipse.emf.ecore.EAttribute>> geteAttributesByTypeForEClass()

getRuntimeContext

public IQueryRuntimeContext getRuntimeContext()

Since:

1.4

getQueryAnalyzer

public QueryAnalyzer getQueryAnalyzer()

Since:

1.5

getHintProvider

public IQueryBackendHintProvider getHintProvider()

Since:

1.4

addAdapter

public void addAdapter(ILocalSearchAdapter adapter)

Since:

1.5

removeAdapter

public void removeAdapter(ILocalSearchAdapter adapter)

Since:

1.5

getBackendContext

public IQueryBackendContext getBackendContext()

Since:

1.5