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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Mon Jul 15 11:49:51 PDT 2002 --><TITLE>: Class TaskThread</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/TaskThread.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../quicktime/app/time/Tasking.html"><B>PREV CLASS</B></A> <A HREF="../../../quicktime/app/time/Timer.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="TaskThread.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">quicktime.app.time</FONT><BR>Class TaskThread</H2><PRE>java.lang.Object | +--<B>quicktime.app.time.TaskThread</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../quicktime/app/spaces/Collection.html">Collection</A>, java.lang.Runnable</DD></DL><HR><DL><DT>public class <B>TaskThread</B><DT>extends java.lang.Object<DT>implements java.lang.Runnable, <A HREF="../../../quicktime/app/spaces/Collection.html">Collection</A></DL><P>The TaskThread class maintains a table of Taskable objects that will periodically have their task method called. Each time an instance of this class is created a new thread is spawned when the start method of the TaskThread object is called. The thread is stopped when the stop method is called. Taskable objects can be added or removed from TaskThreads at the applications discretion. <P> When the thread is running it calls its Taskable member's task method. When it has completed a single iteration of its members it will sleep for the specified sleepTime and then go through the process again until the thread is stopped. <P> A TaskThread object must be explicitly started - just adding a Taskable object to the collection is not sufficient to start the thread. However, once all of the Taskable objects are removed from the collection the thread will stop. To ensure that adding a Taskable object to a TaskThread will also have the thread started the addAndStart method can be used. <P> If a member's task() method throws an Exception it is uncerimoniously removed from the TaskThread collection - no notification is given of such an occurance.<P><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#TaskThread(java.lang.String)">TaskThread</A></B>(java.lang.String tName)</CODE><BR> Creates a TaskThread object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#TaskThread(java.lang.String, int)">TaskThread</A></B>(java.lang.String tName, int sleepTime)</CODE><BR> Creates a TaskThread object.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#addAndStart(quicktime.app.time.Taskable)">addAndStart</A></B>(<A HREF="../../../quicktime/app/time/Taskable.html">Taskable</A> t)</CODE><BR> This method will add a taskable client to the list.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#addMember(java.lang.Object)">addMember</A></B>(java.lang.Object member)</CODE><BR> This method will add a taskable client to the list.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#finalize()">finalize</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#getPriority()">getPriority</A></B>()</CODE><BR> Returns the current priority of the task thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#getSleepTime()">getSleepTime</A></B>()</CODE><BR> The time that the thread will sleep.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#hasMember(java.lang.Object)">hasMember</A></B>(java.lang.Object object)</CODE><BR> Return true if the Taskable object is currently a member of the task list.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#isAlive()">isAlive</A></B>()</CODE><BR> Returns the alive state of the thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#isAppropriate(java.lang.Object)">isAppropriate</A></B>(java.lang.Object object)</CODE><BR> Returns true if the object is an instance of the Taskable interface.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#isEmpty()">isEmpty</A></B>()</CODE><BR> Returns true if there are no Taskable objects in the collection</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#killAllThreads()">killAllThreads</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.util.Enumeration</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#members()">members</A></B>()</CODE><BR> Returns an Enumeration for the current Taskable members of the collection.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#removeAll()">removeAll</A></B>()</CODE><BR> Remove all task objects from the task list and stops the task thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#removeMember(java.lang.Object)">removeMember</A></B>(java.lang.Object member)</CODE><BR> Removes the Taskable object from the collection.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#resume()">resume</A></B>()</CODE><BR> Resumes the execution of the task thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#run()">run</A></B>()</CODE><BR> Calls task on each of the task object in the internal task list.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#setPriority(int)">setPriority</A></B>(int newPriority)</CODE><BR> Sets the priority of the thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#setSleepTime(int)">setSleepTime</A></B>(int newTime)</CODE><BR> The sleepTime for the thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#size()">size</A></B>()</CODE><BR> Return the number of task current objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#start()">start</A></B>()</CODE><BR> This will create a thread and start it running, calling task on each of the items you have added to the TaskThread object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#stop()">stop</A></B>()</CODE><BR> This will destroy the thread and end the periodic calling of task objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#suspend()">suspend</A></B>()</CODE><BR> Suspends the execution of the task thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/app/time/TaskThread.html#toString()">toString</A></B>()</CODE><BR> String representation of the class.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="TaskThread(java.lang.String)"><!-- --></A><H3>TaskThread</H3><PRE>public <B>TaskThread</B>(java.lang.String tName)</PRE><DL><DD>Creates a TaskThread object. When the object's start method is called the supplied name will be the name of the thread that is created by the task thread object. The default sleep time for a TaskThread's thread is 100 msecs.<DD><DL><DT><B>Parameters:</B><DD><CODE>tName</CODE> - the name of the thread</DL></DD></DL><HR><A NAME="TaskThread(java.lang.String, int)"><!-- --></A><H3>TaskThread</H3>⌨️ 快捷键说明
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