Examples of com.sun.naming.internal.FactoryEnumeration

com.sun.naming.internal.FactoryEnumeration
The FactoryEnumeration is used for returning factory instances. @author Rosanna Lee @author Scott Seligman @version 1.9 05/11/17

     * @return factory created; null if cannot create
     */
    private static Object createObjectFromFactories(Object obj, Name name,
            Context nameCtx, Hashtable environment) throws Exception {


        FactoryEnumeration factories = ResourceManager.getFactories(
            Context.OBJECT_FACTORIES, environment, nameCtx);


        if (factories == null)
            return null;


        // Try each factory until one succeeds
        ObjectFactory factory;
        Object answer = null;
        while (answer == null && factories.hasMore()) {
            factory = (ObjectFactory)factories.next();
            answer = factory.getObjectInstance(obj, name, nameCtx, environment);
        }
        return answer;
    }

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        getStateToBind(Object obj, Name name, Context nameCtx,
                       Hashtable<?,?> environment)
        throws NamingException
    {


        FactoryEnumeration factories = ResourceManager.getFactories(
            Context.STATE_FACTORIES, environment, nameCtx);


        if (factories == null) {
            return obj;
        }


        // Try each factory until one succeeds
        StateFactory factory;
        Object answer = null;
        while (answer == null && factories.hasMore()) {
            factory = (StateFactory)factories.next();
            answer = factory.getStateToBind(obj, name, nameCtx, environment);
        }


        return (answer != null) ? answer : obj;
    }

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    private static Object createObjectFromFactories(Object obj, Name name,
            Context nameCtx, Hashtable environment, Attributes attrs)
        throws Exception {


        FactoryEnumeration factories = ResourceManager.getFactories(
            Context.OBJECT_FACTORIES, environment, nameCtx);


        if (factories == null)
            return null;


        ObjectFactory factory;
        Object answer = null;
        // Try each factory until one succeeds
        while (answer == null && factories.hasMore()) {
            factory = (ObjectFactory)factories.next();
            if (factory instanceof DirObjectFactory) {
                answer = ((DirObjectFactory)factory).
                    getObjectInstance(obj, name, nameCtx, environment, attrs);
            } else {
                answer =

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        getStateToBind(Object obj, Name name, Context nameCtx,
                       Hashtable<?,?> environment, Attributes attrs)
        throws NamingException {


        // Get list of state factories
        FactoryEnumeration factories = ResourceManager.getFactories(
            Context.STATE_FACTORIES, environment, nameCtx);


        if (factories == null) {
            // no factories to try; just return originals
            return new DirStateFactory.Result(obj, attrs);
        }


        // Try each factory until one succeeds
        StateFactory factory;
        Object objanswer;
        DirStateFactory.Result answer = null;
        while (answer == null && factories.hasMore()) {
            factory = (StateFactory)factories.next();
            if (factory instanceof DirStateFactory) {
                answer = ((DirStateFactory)factory).
                    getStateToBind(obj, name, nameCtx, environment, attrs);
            } else {
                objanswer =

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                                             Hashtable<?,?> env)
        throws NamingException {


        // Get object factories list from environment properties or
        // provider resource file.
        FactoryEnumeration factories = ResourceManager.getFactories(
            LdapContext.CONTROL_FACTORIES, env, ctx);


        if (factories == null) {
            return ctl;
        }


        // Try each factory until one succeeds
        Control answer = null;
        ControlFactory factory;
        while (answer == null && factories.hasMore()) {
            factory = (ControlFactory)factories.next();
            answer = factory.getControlInstance(ctl);
        }


        return (answer != null)? answer : ctl;
    }

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                                             Hashtable<?,?> env)
        throws NamingException {


        // Get object factories list from environment properties or
        // provider resource file.
        FactoryEnumeration factories = ResourceManager.getFactories(
            LdapContext.CONTROL_FACTORIES, env, ctx);


        if (factories == null) {
            return ctl;
        }


        // Try each factory until one succeeds
        Control answer = null;
        ControlFactory factory;
        while (answer == null && factories.hasMore()) {
            factory = (ControlFactory)factories.next();
            answer = factory.getControlInstance(ctl);
        }


        return (answer != null)? answer : ctl;
    }

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