01: /*_############################################################################
02: _##
03: _## SNMP4J - EnumerationIterator.java
04: _##
05: _## Copyright (C) 2003-2008 Frank Fock and Jochen Katz (SNMP4J.org)
06: _##
07: _## Licensed under the Apache License, Version 2.0 (the "License");
08: _## you may not use this file except in compliance with the License.
09: _## You may obtain a copy of the License at
10: _##
11: _## http://www.apache.org/licenses/LICENSE-2.0
12: _##
13: _## Unless required by applicable law or agreed to in writing, software
14: _## distributed under the License is distributed on an "AS IS" BASIS,
15: _## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16: _## See the License for the specific language governing permissions and
17: _## limitations under the License.
18: _##
19: _##########################################################################*/
20:
21: package org.snmp4j.util;
22:
23: import java.util.*;
24:
25: /**
26: * The <code>EnumerationIterator</code> provides an iterator from an
27: * {@link Enumeration}.
28: *
29: * @author Frank Fock
30: * @version 1.6.1
31: * @since 1.6.1
32: */
33: public class EnumerationIterator implements Iterator {
34:
35: private Enumeration e;
36:
37: public EnumerationIterator(Enumeration e) {
38: this .e = e;
39: }
40:
41: /**
42: * Returns <tt>true</tt> if the iteration has more elements.
43: *
44: * @return <tt>true</tt> if the iterator has more elements.
45: */
46: public boolean hasNext() {
47: return e.hasMoreElements();
48: }
49:
50: /**
51: * Returns the next element in the iteration.
52: *
53: * @return the next element in the iteration.
54: */
55: public Object next() {
56: return e.nextElement();
57: }
58:
59: /**
60: * This method is not supported for enumerations.
61: */
62: public void remove() {
63: throw new UnsupportedOperationException();
64: }
65: }
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