01: /*
02: * JacORB - a free Java ORB
03: *
04: * Copyright (C) 1999-2004 Gerald Brose
05: *
06: * This library is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Library General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This library is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Library General Public License for more details.
15: *
16: * You should have received a copy of the GNU Library General Public
17: * License along with this library; if not, write to the Free
18: * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19: *
20: */
21:
22: package org.jacorb.orb.portableInterceptor;
23:
24: import org.omg.PortableInterceptor.*;
25: import org.omg.CORBA.UserException;
26:
27: /**
28: * @author Gerald Brose
29: * @version $Id: AbstractInterceptorIterator.java,v 1.8 2006/07/07 10:55:57 alphonse.bendt Exp $
30: */
31:
32: public abstract class AbstractInterceptorIterator {
33: protected final Interceptor[] interceptors;
34: protected int index = 0;
35: protected int increment = 1;
36:
37: public AbstractInterceptorIterator(Interceptor[] interceptors) {
38: this .interceptors = interceptors;
39: }
40:
41: /**
42: * Tests, if there are more elements available.
43: */
44: protected boolean hasMoreElements() {
45: return (index >= 0) && (index < interceptors.length);
46: }
47:
48: /**
49: * Returns the next element in the enumeration
50: */
51:
52: protected Interceptor nextElement() {
53: Interceptor result = interceptors[index];
54: index += increment;
55: return result;
56: }
57:
58: protected void iterate() throws UserException {
59: while (hasMoreElements()) {
60: invoke(nextElement());
61: }
62: }
63:
64: abstract protected void invoke(Interceptor interceptor)
65: throws UserException;
66: }
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