Examples of oracle.toplink.essentials.threetier.ServerSession

oracle.toplink.essentials.threetier.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 UnitOfWork

    private ClassTransformer buildTransformer(PersistenceUnitInfo unitInfo, Writer logWriter, int logLevel) {
        //persistenceUnitInfo = unitInfo;
        ClassLoader privateClassLoader = unitInfo.getNewTempClassLoader();


        // create server session (it should be done before initializing ServerPlatform)
        ServerSession session = new ServerSession(new Project(new DatabaseLogin()));
        session.setLogLevel(logLevel);
        if(logWriter!=null){
            ((DefaultSessionLog)session.getSessionLog()).setWriter(logWriter);
         }
        
        session.getPlatform().setConversionManager(new EJB30ConversionManager());


        // Create an instance of MetadataProcessor for specified persistence unit info
        MetadataProcessor processor = new MetadataProcessor(unitInfo, session, privateClassLoader, true);
        // Process the Object/relational metadata from XML and annotations.
        PersistenceUnitProcessor.processORMetadata(processor,privateClassLoader, session, false);

        try {
            ClassLoader privateClassLoader = persistenceUnitInfo.getNewTempClassLoader();


            // create server session (it should be done before initializing ServerPlatform)
            // (also before translateOldProperties - it requires session to log warnings)
            session = new ServerSession(new Project(new DatabaseLogin()));
            
            predeployProperties = mergeMaps(extendedProperties, persistenceUnitInfo.getProperties());
    
            // translate old properties
            // this should be done before using properties (i.e. ServerPlatform)

Examples of oracle.toplink.essentials.threetier.ServerSession

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