appserver/web/web-naming/src/main/java/org/apache/naming/NamingContextEnumeration.java

/*
 * Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved.
 * Copyright 2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.naming;

import java.util.Iterator;

import javax.naming.NamingException;
import javax.naming.NamingEnumeration;
import javax.naming.NameClassPair;

/**
 * Naming enumeration implementation.
 *
 * @author Remy Maucherat
 * @version $Revision: 1.2 $ $Date: 2005/12/08 01:29:04 $
 */

public class NamingContextEnumeration
    implements NamingEnumeration<NameClassPair> {


    // ----------------------------------------------------------- Constructors


    public NamingContextEnumeration(Iterator<NamingEntry> entries) {
        iterator = entries;
    }


    // -------------------------------------------------------------- Variables


    /**
     * Underlying enumeration.
     */
    protected Iterator<NamingEntry> iterator;


    // --------------------------------------------------------- Public Methods


    /**
     * Retrieves the next element in the enumeration.
     */
    public NameClassPair next()
        throws NamingException {
        return nextElement();
    }


    /**
     * Determines whether there are any more elements in the enumeration.
     */
    public boolean hasMore()
        throws NamingException {
        return iterator.hasNext();
    }


    /**
     * Closes this enumeration.
     */
    public void close()
        throws NamingException {
    }


    public boolean hasMoreElements() {
        return iterator.hasNext();
    }


    public NameClassPair nextElement() {
        NamingEntry entry = iterator.next();
        return new NameClassPair(entry.name, entry.value.getClass().getName());
    }


}