Examples of org.eclipse.persistence.sessions.server.ServerSession

Package org.eclipse.persistence.sessions.server

Examples of org.eclipse.persistence.sessions.server.ServerSession

org.eclipse.persistence.sessions.server.ServerSession
Implementation of Server INTERNAL: The public interface should be used.
Purpose: A single session that supports multiple user/clients connection at the same time.
Description: This session supports a shared session that can be used by multiple users or clients in a three-tiered application. It brokers client sessions to allow read and write access through a unified object cache. The server session provides a shared read only database connection that is used by all of its client for reads. All changes to objects and the database must be done through a unit of work acquired from the client session, this allows the changes to occur in a transactional object space and under a exclusive database connection.
Responsibilities:
- Connecting/disconnecting the default reading login.
- Reading objects and maintaining the object cache.
- Brokering client sessions.
- Disabling database modification through the shared connection.
@see ClientSession @see UnitOfWorkImpl

        delegate = new EntityManagerFactoryDelegate(newSetupImpl, deployProperties, this);
        // This code has been added to allow validation to occur without actually calling createEntityManager
        // RCM refresh command requires the DEPLOY_ON_STARTUP property is set to true so the listener can be added to the session.
        try{
            if (newSetupImpl.shouldGetSessionOnCreateFactory(deployProperties)) {
                ServerSession session = getServerSession();
                CommandManager rcm = session.getCommandManager();
                if (rcm != null && newSetupImpl.shouldSendMetadataRefreshCommand(deployProperties)) {
                    MetadataRefreshCommand command = new MetadataRefreshCommand(properties);
                    rcm.propagateCommand(command);
                }
                session.setRefreshMetadataListener(newSetupImpl);
            }
        } catch (RuntimeException ex) {
            if(delegate != null) {
                delegate.close();
            } else {

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                        throw EntityManagerSetupException.compositeIncompatibleWithSessionsXml(persistenceUnitInfo.getPersistenceUnitName());
                    }
                    session = new SessionBroker();
                    ((SessionBroker)session).setShouldUseDescriptorAliases(true);
                } else {
                    session = new ServerSession(new Project(new DatabaseLogin()));


                    //set the listener to process RCM metadata refresh commands 
                    session.setRefreshMetadataListener(this);
                }
                session.setName(this.sessionName);

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                        throw EntityManagerSetupException.compositeIncompatibleWithSessionsXml(persistenceUnitInfo.getPersistenceUnitName());
                    }
                    session = new SessionBroker();
                    ((SessionBroker)session).setShouldUseDescriptorAliases(true);
                } else {
                    session = new ServerSession(new Project(new DatabaseLogin()));


                    //set the listener to process RCM metadata refresh commands 
                    session.setRefreshMetadataListener(this);
                }
                session.setName(this.sessionName);

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     * We preserve state from each processor run by holding static references
     * to projects. 
     */
    public MetadataProject getMetadataProject(SEPersistenceUnitInfo puInfo) {
        if (! metadataProjects.containsKey(puInfo.getPersistenceUnitName())) {
            MetadataProject project = new MetadataProject(puInfo, new ServerSession(new Project(new DatabaseLogin())), false, false);
            metadataProjects.put(puInfo.getPersistenceUnitName(), project);
            return project;
        } else {
            return metadataProjects.get(puInfo.getPersistenceUnitName());
        }

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                    // parent class we need to know about this class, so the
                    // factory will also hang onto static projects for each
                    // persistence unit. Doing this is going to need careful
                    // cleanup thoughts though. Adding classes ok, but what
                    // about removing some? 
                    MetadataLogger logger = new MetadataLogger(new ServerSession(new Project(new DatabaseLogin())));
                    factory = new MetadataMirrorFactory(logger, Thread.currentThread().getContextClassLoader());
                    processingEnv.getMessager().printMessage(Kind.NOTE, "Creating the metadata factory ...");
                }
                
                // Step 1 - The factory is passed around so those who want the

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        delegate = new EntityManagerFactoryDelegate(newSetupImpl, deployProperties, this);
        // This code has been added to allow validation to occur without actually calling createEntityManager
        // RCM refresh command requires the DEPLOY_ON_STARTUP property is set to true so the listener can be added to the session.
        try{
            if (newSetupImpl.shouldGetSessionOnCreateFactory(deployProperties)) {
                ServerSession session = getServerSession();
                CommandManager rcm = session.getCommandManager();
                if (rcm != null && newSetupImpl.shouldSendMetadataRefreshCommand(deployProperties)) {
                    MetadataRefreshCommand command = new MetadataRefreshCommand(properties);
                    rcm.propagateCommand(command);
                }
                session.setRefreshMetadataListener(newSetupImpl);
            }
        } catch (RuntimeException ex) {
            if(delegate != null) {
                delegate.close();
            } else {

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     * We preserve state from each processor run by holding static references
     * to projects. 
     */
    public MetadataProject getMetadataProject(SEPersistenceUnitInfo puInfo) {
        if (! metadataProjects.containsKey(puInfo.getPersistenceUnitName())) {
            MetadataProject project = new MetadataProject(puInfo, new ServerSession(new Project(new DatabaseLogin())), false, false, false, false);
            metadataProjects.put(puInfo.getPersistenceUnitName(), project);
            return project;
        } else {
            return metadataProjects.get(puInfo.getPersistenceUnitName());
        }

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                        throw new PersistenceException(EntityManagerSetupException.compositeIncompatibleWithSessionsXml(persistenceUnitInfo.getPersistenceUnitName()));
                    }
                    session = new SessionBroker();
                    ((SessionBroker)session).setShouldUseDescriptorAliases(true);
                } else {
                    session = new ServerSession(new Project(new DatabaseLogin()));
                }
                session.setName(this.sessionName);


                if (this.compositeEmSetupImpl == null) {
                    // session name and ServerPlatform must be set prior to setting the loggers.

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                isSessionLoadedFromSessionsXML = true;
            }
            
            // Create server session (it needs to be done before initializing ServerPlatform and logging).
            // If a sessions-xml is used this will get replaced later, but is required for logging.
            session = new ServerSession(new Project(new DatabaseLogin()));            
            // ServerSession name and ServerPlatform must be set prior to setting the loggers.
            session.setName(this.sessionName);
            ClassLoader realClassLoader = persistenceUnitInfo.getClassLoader();
            updateServerPlatform(predeployProperties, realClassLoader);
            // Update loggers and settings for the singleton logger and the session logger.

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                    // keep only non server session properties - the rest will
                    // be either cached in the server session or ignored
                    properties = splitProperties[0];
                    Map serverSessionProperties = splitProperties[1];
                    // the call to setupImpl.deploy() finishes the session creation
                    ServerSession tempServerSession = setupImpl.deploy(realLoader, serverSessionProperties);
                    // discard all but non server session properties from server
                    // session properties.
                    Map tempProperties = EntityManagerFactoryProvider.keepSpecifiedProperties(tempServerSession.getProperties(), supportedNonServerSessionProperties);
                    // properties override server session properties
                    Map propertiesToProcess = EntityManagerFactoryProvider.mergeMaps(properties, tempProperties);
                    processProperties(propertiesToProcess);
                    this.serverSession = tempServerSession;
                }

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