activationdesc.html
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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 Thu Apr 27 23:35:45 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class ActivationDesc</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/ActivationDesc.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-files/index-1.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><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../java/rmi/activation/Activatable.html"><B>PREV CLASS</B></A> <A HREF="../../../java/rmi/activation/ActivationGroup.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="ActivationDesc.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">java.rmi.activation</FONT><BR>Class ActivationDesc</H2><PRE><A HREF="../../../java/lang/Object.html">java.lang.Object</A> | +--<B>java.rmi.activation.ActivationDesc</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../java/io/Serializable.html">Serializable</A></DD></DL><HR><DL><DT>public final class <B>ActivationDesc</B><DT>extends <A HREF="../../../java/lang/Object.html">Object</A><DT>implements <A HREF="../../../java/io/Serializable.html">Serializable</A></DL><P>An activation descriptor contains the information necessary to activate an object: <ul> <li> the object's group identifier, <li> the object's fully-qualified class name, <li> the object's code location (the location of the class), a codebase URL path, <li> the object's restart "mode", and, <li> a "marshalled" object that can contain object specific initialization data. </ul> <p>A descriptor registered with the activation system can be used to recreate/activate the object specified by the descriptor. The <code>MarshalledObject</code> in the object's descriptor is passed as the second argument to the remote object's constructor for object to use during reinitialization/activation.<P><DL><DT><B>Since: </B><DD>1.2</DD><DT><B>See Also: </B><DD><A HREF="../../../java/rmi/activation/Activatable.html"><CODE>Activatable</CODE></A>, <A HREF="../../../serialized-form.html#java.rmi.activation.ActivationDesc">Serialized Form</A></DL><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="../../../java/rmi/activation/ActivationDesc.html#ActivationDesc(java.rmi.activation.ActivationGroupID, java.lang.String, java.lang.String, java.rmi.MarshalledObject)">ActivationDesc</A></B>(<A HREF="../../../java/rmi/activation/ActivationGroupID.html">ActivationGroupID</A> groupID, <A HREF="../../../java/lang/String.html">String</A> className, <A HREF="../../../java/lang/String.html">String</A> location, <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A> data)</CODE><BR> Constructs an object descriptor for an object whose class name is <code>className</code> that can be loaded from the code <code>location</code> and whose initialization information is <code>data</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#ActivationDesc(java.rmi.activation.ActivationGroupID, java.lang.String, java.lang.String, java.rmi.MarshalledObject, boolean)">ActivationDesc</A></B>(<A HREF="../../../java/rmi/activation/ActivationGroupID.html">ActivationGroupID</A> groupID, <A HREF="../../../java/lang/String.html">String</A> className, <A HREF="../../../java/lang/String.html">String</A> location, <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A> data, boolean restart)</CODE><BR> Constructs an object descriptor for an object whose class name is <code>className</code> that can be loaded from the code <code>location</code> and whose initialization information is <code>data</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#ActivationDesc(java.lang.String, java.lang.String, java.rmi.MarshalledObject)">ActivationDesc</A></B>(<A HREF="../../../java/lang/String.html">String</A> className, <A HREF="../../../java/lang/String.html">String</A> location, <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A> data)</CODE><BR> Constructs an object descriptor for an object whose class name is <code>className</code>, that can be loaded from the code <code>location</code> and whose initialization information is <code>data</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#ActivationDesc(java.lang.String, java.lang.String, java.rmi.MarshalledObject, boolean)">ActivationDesc</A></B>(<A HREF="../../../java/lang/String.html">String</A> className, <A HREF="../../../java/lang/String.html">String</A> location, <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A> data, boolean restart)</CODE><BR> Constructs an object descriptor for an object whose class name is <code>className</code>, that can be loaded from the code <code>location</code> and whose initialization information is <code>data</code>.</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> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#equals(java.lang.Object)">equals</A></B>(<A HREF="../../../java/lang/Object.html">Object</A> obj)</CODE><BR> Compares two activation descriptors for content equality.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#getClassName()">getClassName</A></B>()</CODE><BR> Returns the class name for the object specified by this descriptor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#getData()">getData</A></B>()</CODE><BR> Returns a "marshalled object" containing intialization/activation data for the object specified by this descriptor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../java/rmi/activation/ActivationGroupID.html">ActivationGroupID</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#getGroupID()">getGroupID</A></B>()</CODE><BR> Returns the group identifier for the object specified by this descriptor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/rmi/activation/ActivationDesc.html#getLocation()">getLocation</A></B>()</CODE><BR> Returns the code location for the object specified by this descriptor.</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="../../../java/rmi/activation/ActivationDesc.html#getRestartMode()">getRestartMode</A></B>()</CODE><BR> Returns the "restart" mode of the object associated with this activation descriptor.</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="../../../java/rmi/activation/ActivationDesc.html#hashCode()">hashCode</A></B>()</CODE><BR> Return the same hashCode for similar <code>ActivationDesc</code>s.</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.<A HREF="../../../java/lang/Object.html">Object</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../../java/lang/Object.html#toString()">toString</A>, <A HREF="../../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../../java/lang/Object.html#wait(long, int)">wait</A></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="ActivationDesc(java.lang.String, java.lang.String, java.rmi.MarshalledObject)"><!-- --></A><H3>ActivationDesc</H3><PRE>public <B>ActivationDesc</B>(<A HREF="../../../java/lang/String.html">String</A> className, <A HREF="../../../java/lang/String.html">String</A> location, <A HREF="../../../java/rmi/MarshalledObject.html">MarshalledObject</A> data) throws <A HREF="../../../java/rmi/activation/ActivationException.html">ActivationException</A></PRE><DL><DD>Constructs an object descriptor for an object whose class name is <code>className</code>, that can be loaded from the code <code>location</code> and whose initialization information is <code>data</code>. If this form of the constructor is used, the <code>groupID</code> defaults to the current id for <code>ActivationGroup</code> for this VM. All objects with the same <code>ActivationGroupID</code> are activated in the same VM. <p>Note that objects specified by a descriptor created with this constructor will only be activated on demand (by default, the restart mode is <code>false</code>). If an activatable object requires restart services, use one of the <code>ActivationDesc</code> constructors that takes a boolean parameter, <code>restart</code>. <p> This constructor will throw <code>ActivationException</code> if⌨️ 快捷键说明
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