01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: * $Header:$
18: */
19: package org.apache.beehive.netui.util.iterator;
20:
21: import java.util.Enumeration;
22: import java.util.Iterator;
23: import java.util.NoSuchElementException;
24:
25: import org.apache.beehive.netui.util.Bundle;
26:
27: /**
28: * This class implements the {@link java.util.Iterator} interface for an {@link java.util.Enumeration}.
29: */
30: public class EnumerationIterator implements Iterator {
31:
32: private Enumeration _enum = null;
33:
34: public EnumerationIterator(Enumeration e) {
35: _enum = e;
36: }
37:
38: public boolean hasNext() {
39: if (_enum == null)
40: return false;
41: else
42: return _enum.hasMoreElements();
43: }
44:
45: public Object next() {
46: if (_enum == null || !hasNext())
47: throw new NoSuchElementException(
48: Bundle
49: .getErrorString("IteratorFactory_Iterator_noSuchElement"));
50: else
51: return _enum.nextElement();
52: }
53:
54: public void remove() {
55: throw new UnsupportedOperationException(Bundle.getErrorString(
56: "IteratorFactory_Iterator_removeUnsupported",
57: new Object[] { this.getClass().getName() }));
58: }
59: }
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