org.eclipse.incquery.runtime.localsearch.matcher.integration

Class LocalSearchBackend

java.lang.Object

org.eclipse.incquery.runtime.localsearch.matcher.integration.LocalSearchBackend

All Implemented Interfaces:

IQueryBackend

public class LocalSearchBackend
extends java.lang.Object
implements IQueryBackend

Author:

Marton Bur, Zoltan Ujhelyi

Constructor Summary

Constructors

Constructor and Description
LocalSearchBackend(org.apache.log4j.Logger logger, IQueryRuntimeContext runtimeContext, IQueryCacheContext queryCacheContext, IQueryBackendHintProvider hintProvider)

Method Summary

Modifier and Type	Method and Description
void	dispose() Disposes the query backend.
com.google.common.collect.Table<org.eclipse.emf.ecore.EDataType,org.eclipse.emf.ecore.EClass,java.util.Set<org.eclipse.emf.ecore.EAttribute>>	geteAttributesByTypeForEClass()
IQueryResultProvider	getResultProvider(PQuery query) Returns a result provider for a given query.
boolean	isCaching()
IQueryResultProvider	peekExistingResultProvider(PQuery query) Returns an existing result provider for a given query, if it was previously constructed, returns null otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalSearchBackend

public LocalSearchBackend(org.apache.log4j.Logger logger,
                          IQueryRuntimeContext runtimeContext,
                          IQueryCacheContext queryCacheContext,
                          IQueryBackendHintProvider hintProvider)

Method Detail

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

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()