Java POA.create_lifespan_policy方法代码示例

import org.omg.PortableServer.POA; //导入方法依赖的package包/类
private synchronized void createbiPOA( ) {
    if( biPOA != null ) {
        return;
    }
    try {
        POA rootPOA = (POA) orb.resolve_initial_references(
            ORBConstants.ROOT_POA_NAME );
        rootPOA.the_POAManager().activate( );

        int i = 0;
        Policy[] poaPolicy = new Policy[3];
        poaPolicy[i++] = rootPOA.create_lifespan_policy(
            LifespanPolicyValue.TRANSIENT);
        poaPolicy[i++] = rootPOA.create_id_assignment_policy(
            IdAssignmentPolicyValue.SYSTEM_ID);
        poaPolicy[i++] = rootPOA.create_servant_retention_policy(
            ServantRetentionPolicyValue.RETAIN);
        biPOA = rootPOA.create_POA("BindingIteratorPOA", null, poaPolicy );
        biPOA.the_POAManager().activate( );
    } catch( Exception e ) {
        throw readWrapper.namingCtxBindingIteratorCreate( e ) ;
    }
}
 

import org.omg.PortableServer.POA; //导入方法依赖的package包/类
/**
 * Create NameService which starts the Root Naming Context in Persistent CosNaming
 * @param orb an ORB object.
 * @param logDir a File
 * @exception java.lang.Exception a Java exception.
 */
public NameService(ORB orb, File logDir)
    throws Exception
{
    theorb = orb;

    // Moved this to the creation of the ORB that is passed into this
    // constructor.
    //
    // This is required for creating Persistent Servants under this ORB
    // Right now the Persistent NameService and ORBD are launched together
    // Find out a better way of doing this, Since ORBD is an important
    // process which should not be killed because of some external process
    // orb.setPersistentServerId( (int) 1000 );

    // get and activate the root naming POA
    POA rootPOA = (POA)orb.resolve_initial_references(
        ORBConstants.ROOT_POA_NAME ) ;
    rootPOA.the_POAManager().activate();

    // create a new POA for persistent Naming Contexts
    // With Non-Retain policy, So that every time Servant Manager
    // will be contacted when the reference is made for the context
    // The id assignment is made by the NameServer, The Naming Context
    // id's will be in the format NC<Index>
    int i=0;
    Policy[] poaPolicy = new Policy[4];
    poaPolicy[i++] = rootPOA.create_lifespan_policy(
                     LifespanPolicyValue.PERSISTENT);
    poaPolicy[i++] = rootPOA.create_request_processing_policy(
                     RequestProcessingPolicyValue.USE_SERVANT_MANAGER);
    poaPolicy[i++] = rootPOA.create_id_assignment_policy(
                     IdAssignmentPolicyValue.USER_ID);
    poaPolicy[i++] = rootPOA.create_servant_retention_policy(
                     ServantRetentionPolicyValue.NON_RETAIN);


    nsPOA = rootPOA.create_POA("NameService", null, poaPolicy);
    nsPOA.the_POAManager().activate( );

    // create and set the servant manager
    contextMgr = new
        ServantManagerImpl(orb, logDir, this );

    // The RootObject key will be NC0
    String rootKey = contextMgr.getRootObjectKey( );
    // initialize the root Naming Context
    NamingContextImpl nc =
            new NamingContextImpl( orb, rootKey, this, contextMgr );
    nc = contextMgr.addContext( rootKey, nc );
    nc.setServantManagerImpl( contextMgr );
    nc.setORB( orb );
    nc.setRootNameService( this );

    nsPOA.set_servant_manager(contextMgr);
    rootContext = NamingContextHelper.narrow(
    nsPOA.create_reference_with_id( rootKey.getBytes( ),
    NamingContextHelper.id( ) ) );
}