01: /**********************************************************************************
02: * $URL: $
03: * $Id: $
04: ***********************************************************************************
05: *
06: * Copyright (c) 2003, 2004, 2005, 2006 The Sakai Foundation.
07: *
08: * Licensed under the Educational Community License, Version 1.0 (the "License");
09: * you may not use this file except in compliance with the License.
10: * You may obtain a copy of the License at
11: *
12: * http://www.opensource.org/licenses/ecl1.php
13: *
14: * Unless required by applicable law or agreed to in writing, software
15: * distributed under the License is distributed on an "AS IS" BASIS,
16: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: * See the License for the specific language governing permissions and
18: * limitations under the License.
19: *
20: **********************************************************************************/package org.sakaiproject.component.osid.registry;
21:
22: /**
23: * <p>
24: * ProviderIterator implements a "straw-man" registry interface.
25: * </p>
26: *
27: * @author Massachusetts Institute of Technology
28: * @version $Id: PresenceTool.java 632 2005-07-14 21:22:50Z janderse@umich.edu $
29: */
30: public class ProviderIterator implements
31: edu.mit.osid.registry.ProviderIterator {
32: java.util.Iterator mIterator = null;
33:
34: /**
35: * Store away the input.
36: */
37: protected ProviderIterator(java.util.Vector vector) {
38: mIterator = vector.iterator();
39: }
40:
41: /**
42: * Test if we have any more Providers to return.
43: */
44: public boolean hasNextProvider()
45: throws edu.mit.osid.registry.RegistryException {
46: return mIterator.hasNext();
47: }
48:
49: /**
50: * Return the next Provider from the original input.
51: */
52: public edu.mit.osid.registry.Provider nextProvider()
53: throws edu.mit.osid.registry.RegistryException {
54: try {
55: return (edu.mit.osid.registry.Provider) mIterator.next();
56: } catch (java.util.NoSuchElementException e) {
57: throw new edu.mit.osid.registry.RegistryException(
58: org.osid.shared.SharedException.NO_MORE_ITERATOR_ELEMENTS);
59: }
60: }
61: }
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