File	Doc	Category	Size	Date	Package
RefreshManager.java	API Doc	phoneME MR2 API (J2ME)	5412	Wed May 02 18:00:42 BST 2007	gov.nist.microedition.sip

RefreshManager

• java.lang.Object

Fields Summary
private static RefreshManager	instance The unique instance of this class.
private Hashtable	refreshTable The hashtable keeping a mapping between the refreshID and the refresh Tasks.
private int	idGenerator generator of task id .

Constructors Summary
private RefreshManager() Creates a new instance of the RefreshManager. refreshTable = new Hashtable();

Methods Summary
public int	createRefreshTask(gov.nist.siplite.message.Request request, javax.microedition.sip.SipConnectionNotifier sipConnectionNotifier, javax.microedition.sip.SipRefreshListener sipRefreshListener, javax.microedition.sip.SipClientConnection sipClientConnection) Creates a new RefreshTask with a specific id, schedules it and keep the mapping between this newly created task and the id. param request for which a refresh task must be created param sipConnectionNotifier used to send the request param sipRefreshListener the callback interface used listening for refresh event on this task param sipClientConnection the connection to update return the id of the newly created task int taskId = ++idGenerator; RefreshTask refreshTask = new RefreshTask( String.valueOf(taskId), request, sipConnectionNotifier, sipRefreshListener, sipClientConnection); refreshTable.put(String.valueOf(taskId), refreshTask); return taskId;
public static synchronized gov.nist.microedition.sip.RefreshManager	getInstance() Returns the instance of RefreshManager. return the instance of RefreshManager singleton if (instance == null) instance = new RefreshManager(); return instance;
public RefreshTask	getTask(java.lang.String taskId) Return the task mapping the taskId param taskId - the id of the task to retrieve return the Refresh task mapping the taskId return (RefreshTask)refreshTable.get(taskId);
public void	removeTask(java.lang.String taskId) Removes a task param taskId - the task id of the task to remove refreshTable.remove(taskId);
public void	scheduleTask(java.lang.String taskId, int expires) Schedules the task whose id is given in parameter for the expires param taskId - the id of the task to schedule param expires - the expires time,so the delay until when the stack must schedule the task. If it is -1, it means that the expires has already been given when the task was created. if (Logging.REPORT_LEVEL <= Logging.INFORMATION) { Logging.report(Logging.INFORMATION, LogChannels.LC_JSR180, "schedule the next register in " + expires + " sec"); } RefreshTask refreshTask = (RefreshTask)refreshTable.get(taskId); if (refreshTask == null) return; if (expires == -1) return; if (expires >= 0) { // The timer to shcedule the tasks Timer timer = new Timer(); // Once the task has been processed, it can be scheduled again // so a new one is created refreshTask = new RefreshTask( refreshTask.getTaskId(), refreshTask.getRequest(), refreshTask.getSipConnectionNotifier(), refreshTask.getSipRefreshListener(), refreshTask.getSipClientConnection()); refreshTable.put(taskId, refreshTask); timer.schedule(refreshTask, expires * 1000); }