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: /**
18: * @author Pavel Dolgov
19: * @version $Revision$
20: */package org.apache.harmony.awt;
21:
22: import java.util.Iterator;
23:
24: import org.apache.harmony.awt.internal.nls.Messages;
25:
26: /**
27: * ReadOnlyIterator
28: */
29: public final class ReadOnlyIterator<E> implements Iterator<E> {
30:
31: private final Iterator<E> it;
32:
33: public ReadOnlyIterator(Iterator<E> it) {
34: if (it == null) {
35: throw new NullPointerException();
36: }
37: this .it = it;
38: }
39:
40: public void remove() {
41: // awt.50=Iterator is read-only
42: throw new UnsupportedOperationException(Messages
43: .getString("awt.50")); //$NON-NLS-1$
44: }
45:
46: public boolean hasNext() {
47: return it.hasNext();
48: }
49:
50: public E next() {
51: return it.next();
52: }
53: }
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