1/*
2* Conditions Of Use
3*
4* This software was developed by employees of the National Institute of
5* Standards and Technology (NIST), an agency of the Federal Government.
6* Pursuant to title 15 Untied States Code Section 105, works of NIST
7* employees are not subject to copyright protection in the United States
8* and are considered to be in the public domain.  As a result, a formal
9* license is not needed to use the software.
10*
11* This software is provided by NIST as a service and is expressly
12* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
13* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
14* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
15* AND DATA ACCURACY.  NIST does not warrant or make any representations
16* regarding the use of the software or the results thereof, including but
17* not limited to the correctness, accuracy, reliability or usefulness of
18* the software.
19*
20* Permission to use this software is contingent upon your acceptance
21* of the terms of this agreement
22*
23* .
24*
25*/
26/*******************************************************************************
27* Product of NIST/ITL Advanced Networking Technologies Division (ANTD).        *
28*******************************************************************************/
29package gov.nist.javax.sip.header;
30
31import java.util.ListIterator;
32
33import javax.sip.header.ExtensionHeader;
34import javax.sip.header.Header;
35
36/**
37 * A generic extension header list.
38 * @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:30 $
39 * @since 1.1
40 */
41public class ExtensionHeaderList extends SIPHeaderList<ExtensionHeaderImpl> {
42
43
44
45    private static final long serialVersionUID = 4681326807149890197L;
46
47
48    public Object clone() {
49        ExtensionHeaderList retval = new ExtensionHeaderList(headerName);
50        retval.clonehlist(this.hlist);
51        return retval;
52    }
53    public ExtensionHeaderList(String hName) {
54        super( ExtensionHeaderImpl.class, hName);
55    }
56
57    public ExtensionHeaderList() {
58        super(ExtensionHeaderImpl.class,null);
59    }
60
61
62    public String encode() {
63        StringBuffer retval = new StringBuffer();
64        ListIterator<ExtensionHeaderImpl> it = this.listIterator();
65        while(it.hasNext()) {
66           ExtensionHeaderImpl eh = (ExtensionHeaderImpl) it.next();
67           retval.append(eh.encode());
68        }
69        return retval.toString();
70    }
71}
72