org.eclipse.emf.cdo.spi.server
Class StoreAccessor

java.lang.Object
  org.eclipse.net4j.util.event.Notifier
      org.eclipse.net4j.util.lifecycle.Lifecycle
          org.eclipse.emf.cdo.spi.server.StoreAccessor

All Implemented Interfaces:

IQueryHandlerProvider, IStoreAccessor, org.eclipse.net4j.util.event.INotifier, org.eclipse.net4j.util.event.INotifier.Introspection, org.eclipse.net4j.util.lifecycle.ILifecycle, org.eclipse.net4j.util.lifecycle.ILifecycle.Introspection

Direct Known Subclasses:

LongIDStoreAccessor

public abstract class StoreAccessor
extends org.eclipse.net4j.util.lifecycle.Lifecycle
implements IStoreAccessor

Since:

2.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.emf.cdo.server.IStoreAccessor

IStoreAccessor.AdditionalRevisionCache, IStoreAccessor.CommitContext, IStoreAccessor.QueryResourcesContext

Nested classes/interfaces inherited from interface org.eclipse.net4j.util.lifecycle.ILifecycle

org.eclipse.net4j.util.lifecycle.ILifecycle.Introspection

Nested classes/interfaces inherited from interface org.eclipse.net4j.util.event.INotifier

org.eclipse.net4j.util.event.INotifier.Introspection

Field Summary

Fields inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

USE_LABEL

Constructor Summary

protected	StoreAccessor(Store store, ISession session)
protected	StoreAccessor(Store store, ITransaction transaction)

Method Summary

protected abstract void	addIDMappings(IStoreAccessor.CommitContext context, org.eclipse.net4j.util.om.monitor.OMMonitor monitor) Add ID mappings for all new objects of a transaction to the commit context.
protected abstract void	detachObjects(CDOID[] detachedObjects, long revised, org.eclipse.net4j.util.om.monitor.OMMonitor monitor)
protected abstract void	doActivate()
protected abstract void	doDeactivate()
protected abstract void	doPassivate()
protected abstract void	doUnpassivate()
ISession	getSession() Returns the session this accessor is associated with.
Store	getStore() Returns the store this accessor is associated with.
ITransaction	getTransaction() Returns the transaction this accessor is associated with if IStoreAccessor.isReader() returns false, null otherwise.
boolean	isReader() Returns true if this accessor has been configured for read-only access to the back-end, false otherwise.
CDOID	readResourceID(CDOID folderID, java.lang.String name, long timeStamp) Returns the CDOID of the resource node with the given folderID and name if a resource with this folderID and name exists in the store, null otherwise.
void	release()
void	rollback() Note: IStoreAccessor.write(CommitContext, OMMonitor) and IStoreAccessor.rollback() could be called from different threads.
protected abstract void	rollback(IStoreAccessor.CommitContext commitContext)
InternalCDORevision	verifyRevision(InternalCDORevision revision)
void	write(IStoreAccessor.CommitContext context, org.eclipse.net4j.util.om.monitor.OMMonitor monitor) Called before committing.
protected abstract void	writeRevisionDeltas(InternalCDORevisionDelta[] revisionDeltas, long created, org.eclipse.net4j.util.om.monitor.OMMonitor monitor)
protected abstract void	writeRevisions(InternalCDORevision[] revisions, org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

Methods inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

activate, checkActive, checkArg, checkArg, checkInactive, checkNull, checkState, checkState, deactivate, deferredActivate, doBeforeActivate, doBeforeDeactivate, dump, getLifecycleState, isActive, isDeferredActivation, toString

Methods inherited from class org.eclipse.net4j.util.event.Notifier

addListener, fireEvent, getListeners, getNotificationExecutorService, hasListeners, listenersEmptyChanged, removeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.emf.cdo.server.IStoreAccessor

commit, createChunkReader, loadPackageUnit, queryResources, readPackageUnits, readRevision, readRevisionByTime, readRevisionByVersion, refreshRevisions, writePackageUnits

Methods inherited from interface org.eclipse.emf.cdo.server.IQueryHandlerProvider

getQueryHandler

Constructor Detail

StoreAccessor

protected StoreAccessor(Store store,
                        ISession session)

StoreAccessor

protected StoreAccessor(Store store,
                        ITransaction transaction)

Method Detail

getStore

public Store getStore()

Description copied from interface: IStoreAccessor

Returns the store this accessor is associated with.

Specified by:

getStore in interface IStoreAccessor

isReader

public boolean isReader()

Description copied from interface: IStoreAccessor

Returns true if this accessor has been configured for read-only access to the back-end, false otherwise.

Specified by:

isReader in interface IStoreAccessor

getSession

public ISession getSession()

Description copied from interface: IStoreAccessor

Returns the session this accessor is associated with.

Specified by:

getSession in interface IStoreAccessor

getTransaction

public ITransaction getTransaction()

Description copied from interface: IStoreAccessor

Returns the transaction this accessor is associated with if IStoreAccessor.isReader() returns false, null otherwise.

Specified by:

getTransaction in interface IStoreAccessor

readResourceID

public CDOID readResourceID(CDOID folderID,
                            java.lang.String name,
                            long timeStamp)

Description copied from interface: IStoreAccessor

Returns the CDOID of the resource node with the given folderID and name if a resource with this folderID and name exists in the store, null otherwise.

Specified by:

readResourceID in interface IStoreAccessor

verifyRevision

public InternalCDORevision verifyRevision(InternalCDORevision revision)

Specified by:

verifyRevision in interface IStoreAccessor

write

public void write(IStoreAccessor.CommitContext context,
                  org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

Description copied from interface: IStoreAccessor

Called before committing. An instance of this accessor represents an instance of a back-end transaction. Could be called multiple times before commit it called. IStoreAccessor.commit(OMMonitor) or IStoreAccessor.rollback() will be called after any numbers of IStoreAccessor.write(CommitContext, OMMonitor).

Note: IStoreAccessor.write(CommitContext, OMMonitor) and IStoreAccessor.commit(OMMonitor) could be called from different threads.

Specified by:

write in interface IStoreAccessor

rollback

public void rollback()

Description copied from interface: IStoreAccessor

Note: IStoreAccessor.write(CommitContext, OMMonitor) and IStoreAccessor.rollback() could be called from different threads.

Specified by:

rollback in interface IStoreAccessor

rollback

protected abstract void rollback(IStoreAccessor.CommitContext commitContext)

release

public final void release()

Specified by:

release in interface IStoreAccessor

addIDMappings

protected abstract void addIDMappings(IStoreAccessor.CommitContext context,
                                      org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

Add ID mappings for all new objects of a transaction to the commit context. The implementor must, for each new object of the commit context, determine a permanent CDOID and make it known to the context by calling CommitContext#addIDMapping(CDOIDTemp, CDOID).

writeRevisions

protected abstract void writeRevisions(InternalCDORevision[] revisions,
                                       org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

writeRevisionDeltas

protected abstract void writeRevisionDeltas(InternalCDORevisionDelta[] revisionDeltas,
                                            long created,
                                            org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

detachObjects

protected abstract void detachObjects(CDOID[] detachedObjects,
                                      long revised,
                                      org.eclipse.net4j.util.om.monitor.OMMonitor monitor)

doActivate

protected abstract void doActivate()
                            throws java.lang.Exception

Overrides:

doActivate in class org.eclipse.net4j.util.lifecycle.Lifecycle

Throws:

java.lang.Exception

doDeactivate

protected abstract void doDeactivate()
                              throws java.lang.Exception

Overrides:

doDeactivate in class org.eclipse.net4j.util.lifecycle.Lifecycle

Throws:

java.lang.Exception

doPassivate

protected abstract void doPassivate()
                             throws java.lang.Exception

Throws:

java.lang.Exception

doUnpassivate

protected abstract void doUnpassivate()
                               throws java.lang.Exception

Throws:

java.lang.Exception