| /* |
| * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.corba.se.impl.naming.pcosnaming; |
| |
| // Import general CORBA classes |
| import org.omg.CORBA.SystemException; |
| import org.omg.CORBA.ORB; |
| import org.omg.CORBA.INTERNAL; |
| |
| // Get org.omg.CosNaming Types |
| import org.omg.CosNaming.Binding; |
| import org.omg.CosNaming.BindingType; |
| import org.omg.CosNaming.BindingTypeHolder; |
| import org.omg.CosNaming.NameComponent; |
| import org.omg.PortableServer.POA; |
| |
| // Get base implementation |
| import com.sun.corba.se.impl.naming.pcosnaming.NamingContextImpl; |
| import com.sun.corba.se.impl.naming.pcosnaming.InternalBindingValue; |
| |
| import com.sun.corba.se.impl.naming.cosnaming.BindingIteratorImpl; |
| |
| // Get a hash table |
| import java.util.Hashtable; |
| import java.util.Enumeration; |
| |
| /** |
| * Class TransientBindingIterator implements the abstract methods |
| * defined by BindingIteratorImpl, to use with the TransientNamingContext |
| * implementation of the NamingContextImpl. The TransientBindingIterator |
| * implementation receives a hash table of InternalBindingValues, and uses |
| * an Enumeration to iterate over the contents of the hash table. |
| * @see BindingIteratorImpl |
| * @see TransientNamingContext |
| */ |
| public class PersistentBindingIterator extends BindingIteratorImpl |
| { |
| private POA biPOA; |
| /** |
| * Constructs a new PersistentBindingIterator object. |
| * @param orb a org.omg.CORBA.ORB object. |
| * @param aTable A hashtable containing InternalBindingValues which is |
| * the content of the PersistentNamingContext. |
| * @param java.lang.Exception a Java exception. |
| * @exception Exception a Java exception thrown of the base class cannot |
| * initialize. |
| */ |
| public PersistentBindingIterator(org.omg.CORBA.ORB orb, Hashtable aTable, |
| POA thePOA ) throws java.lang.Exception |
| { |
| super(orb); |
| this.orb = orb; |
| theHashtable = aTable; |
| theEnumeration = this.theHashtable.keys(); |
| currentSize = this.theHashtable.size(); |
| biPOA = thePOA; |
| } |
| |
| /** |
| * Returns the next binding in the NamingContext. Uses the enumeration |
| * object to determine if there are more bindings and if so, returns |
| * the next binding from the InternalBindingValue. |
| * @param b The Binding as an out parameter. |
| * @return true if there were more bindings. |
| */ |
| final public boolean NextOne(org.omg.CosNaming.BindingHolder b) |
| { |
| // If there are more elements get the next element |
| boolean hasMore = theEnumeration.hasMoreElements(); |
| if (hasMore) { |
| InternalBindingKey theBindingKey = |
| ((InternalBindingKey)theEnumeration.nextElement()); |
| InternalBindingValue theElement = |
| (InternalBindingValue)theHashtable.get( theBindingKey ); |
| NameComponent n = new NameComponent( theBindingKey.id, theBindingKey.kind ); |
| NameComponent[] nlist = new NameComponent[1]; |
| nlist[0] = n; |
| BindingType theType = theElement.theBindingType; |
| |
| b.value = |
| new Binding( nlist, theType ); |
| } else { |
| // Return empty but marshalable binding |
| b.value = new Binding(new NameComponent[0],BindingType.nobject); |
| } |
| return hasMore; |
| } |
| |
| /** |
| * Destroys this BindingIterator by disconnecting from the ORB |
| * @exception org.omg.CORBA.SystemException One of a fixed set of CORBA system exceptions. |
| */ |
| final public void Destroy() |
| { |
| // Remove the object from the Active Object Map. |
| try { |
| byte[] objectId = biPOA.servant_to_id( this ); |
| if( objectId != null ) { |
| biPOA.deactivate_object( objectId ); |
| } |
| } |
| catch( Exception e ) { |
| throw new INTERNAL( "Exception in BindingIterator.Destroy " + e ); |
| } |
| } |
| |
| /** |
| * Returns the remaining number of elements in the iterator. |
| * @return the remaining number of elements in the iterator. |
| */ |
| public final int RemainingElements() { |
| return currentSize; |
| } |
| |
| private int currentSize; |
| private Hashtable theHashtable; |
| private Enumeration theEnumeration; |
| private org.omg.CORBA.ORB orb; |
| } |