Examples of javax.naming.Binding

javax.naming.Binding
This class represents a name-to-object binding found in a context.
A context consists of name-to-object bindings. The Binding class represents such a binding. It consists of a name and an object. The Context.listBindings() method returns an enumeration of Binding.
Use subclassing for naming systems that generate contents of a binding dynamically.
A Binding instance is not synchronized against concurrent access by multiple threads. Threads that need to access a Binding concurrently should synchronize amongst themselves and provide the necessary locking. @author Rosanna Lee @author Scott Seligman @since 1.3

        }


        public Object next()
            throws NamingException
        {
            Binding b = (Binding)_delegate.nextElement();
            return new NameClassPair (b.getName(), b.getClassName(), true);
        }

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            return _delegate.hasMoreElements();
        }


        public Object nextElement()
        {
            Binding b = (Binding)_delegate.nextElement();
            return new NameClassPair (b.getName(), b.getClassName(), true);
        }

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        }


        public Object next()
            throws NamingException
        {
            Binding b = (Binding)_delegate.nextElement();
            return new Binding (b.getName(), b.getClassName(), b.getObject(), true);
        }

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            return _delegate.hasMoreElements();
        }


        public Object nextElement()
        {
            Binding b = (Binding)_delegate.nextElement();
            return new Binding (b.getName(), b.getClassName(), b.getObject(),true);
        }

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        //unbind everything in the context and all of its subdirectories
        NamingEnumeration ne = ctx.listBindings(ctx.getNameInNamespace());
        
        while (ne.hasMoreElements())
        {
            Binding b = (Binding)ne.nextElement();
            if (b.getObject() instanceof Context)
            {
                unbind((Context)b.getObject());
            }
            else
                ctx.unbind(b.getName());
        }
    }

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        Context c = (Context)ctx.lookup (name);
        NameParser parser = c.getNameParser("");
        NamingEnumeration enm = ctx.listBindings(name);
        while (enm.hasMore())
        {
            Binding b = (Binding)enm.next();


            if (b.getObject() instanceof Context)
            {
                map.putAll(flattenBindings (c, b.getName()));
            }
            else
            {
                Name compoundName = parser.parse (c.getNameInNamespace());
                compoundName.add(b.getName());
                map.put (compoundName.toString(), b.getObject());
            }
            
        }
        
        return map;

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            {
                objToBind = ((Referenceable)objToBind).getReference();
            }
            //anything else we should be able to bind directly
                           
            Binding binding = getBinding (cname);
            if (binding == null)
                addBinding (cname, objToBind);
            else
                throw new NameAlreadyBoundException (cname.toString());
        }
        else
        {
            if(Log.isDebugEnabled())Log.debug("Checking for existing binding for name="+cname+" for first element of name="+cname.get(0));
          
            //walk down the subcontext hierarchy       
            //need to ignore trailing empty "" name components
                    
            String firstComponent = cname.get(0);
            Object ctx = null;


            if (firstComponent.equals(""))
                ctx = this;
            else
            {


                Binding  binding = getBinding (firstComponent);
                if (binding == null)
                    throw new NameNotFoundException (firstComponent+ " is not bound");
                
                ctx = binding.getObject();
                
                
                if (ctx instanceof Reference)
                {  
                    //deference the object

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            throw new NamingException ("Name is empty");


        if (cname.size() == 1)
        {
            //not permitted to bind if something already bound at that name
            Binding binding = getBinding (cname);
            if (binding != null)
                throw new NameAlreadyBoundException (cname.toString());


            Context ctx = new NamingContext ((Hashtable)_env.clone(), cname.get(0), this, _parser);
            addBinding (cname, ctx);
            return ctx;
        }
        
            
        //If the name has multiple subcontexts, walk the hierarchy by
        //fetching the first one. All intermediate subcontexts in the 
        //name must already exist.
        String firstComponent = cname.get(0);
        Object ctx = null;


        if (firstComponent.equals(""))
            ctx = this;
        else
        {
            Binding binding = getBinding (firstComponent);
            if (binding == null)
                throw new NameNotFoundException (firstComponent + " is not bound");
            
            ctx = binding.getObject();
            
            if (ctx instanceof Reference)
            {  
                //deference the object
                if(Log.isDebugEnabled())Log.debug("Object bound at "+firstComponent +" is a Reference");

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        if (cname.size() == 1)
        {
            Binding binding = getBinding (cname);
            if (binding == null)
            {
                NameNotFoundException nnfe = new NameNotFoundException();
                nnfe.setRemainingName(cname);
                throw nnfe;
            }
                


            Object o = binding.getObject();


            //handle links by looking up the link
            if (o instanceof LinkRef)
            {
                //if link name starts with ./ it is relative to current context
                String linkName = ((LinkRef)o).getLinkName();
                if (linkName.startsWith("./"))
                    return this.lookup (linkName.substring(2));
                else
                {
                    //link name is absolute
                    InitialContext ictx = new InitialContext();
                    return ictx.lookup (linkName);
                }
            }
            else if (o instanceof Reference)
            {
                //deference the object
                try
                {
                    return NamingManager.getObjectInstance(o, cname, this, _env);
                }
                catch (NamingException e)
                {
                    throw e;
                }
                catch (Exception e)
                {
                    Log.warn("",e);
                    throw new NamingException (e.getMessage());
                }
            }
            else
                return o;
        }


        //it is a multipart name, recurse to the first subcontext
   
        String firstComponent = cname.get(0);
        Object ctx = null;


        if (firstComponent.equals(""))
            ctx = this;
        else
        {
            
            Binding binding = getBinding (firstComponent);
            if (binding == null)
            {
                NameNotFoundException nnfe = new NameNotFoundException();
                nnfe.setRemainingName(cname);
                throw nnfe;
            }
            
            //as we have bound a reference to an object factory 
            //for the component specific contexts
            //at "comp" we need to resolve the reference
            ctx = binding.getObject();
            
            if (ctx instanceof Reference)
            {  
                //deference the object
                try

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        if (cname.size() == 0)
            throw new NamingException ("Name is empty");


        if (cname.size() == 1)
        {
            Binding binding = getBinding (cname);
            if (binding == null)
                throw new NameNotFoundException();


            Object o = binding.getObject();


            //handle links by looking up the link
            if (o instanceof Reference)
            {
                //deference the object
                try
                {
                    return NamingManager.getObjectInstance(o, cname.getPrefix(1), this, _env);
                }
                catch (NamingException e)
                {
                    throw e;
                }
                catch (Exception e)
                {
                    Log.warn("",e);
                    throw new NamingException (e.getMessage());
                }
            }
            else
            {
                //object is either a LinkRef which we don't dereference
                //or a plain object in which case spec says we return it
                return o;
            }
        }




        //it is a multipart name, recurse to the first subcontext
        String firstComponent = cname.get(0);
        Object ctx = null;
        
        if (firstComponent.equals(""))
            ctx = this;
        else
        {
            Binding binding = getBinding (firstComponent);
            if (binding == null)
                throw new NameNotFoundException ();
            
            ctx = binding.getObject();


            if (ctx instanceof Reference)
            {  
                //deference the object
                try

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