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