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Diffstat (limited to 'libjava/classpath/java/rmi/activation/package.html')
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diff --git a/libjava/classpath/java/rmi/activation/package.html b/libjava/classpath/java/rmi/activation/package.html new file mode 100644 index 000000000..9df518fed --- /dev/null +++ b/libjava/classpath/java/rmi/activation/package.html @@ -0,0 +1,73 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> +<!-- package.html - describes classes in java.rmi.activation package. + Copyright (C) 2002, 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. --> + +<html> +<head><title>GNU Classpath - java.rmi.activation</title></head> + +<body> +In the previous Classpath releases, an instance of a UnicastRemoteObject +could be accessed from a server that: +<ul> +<li>has created an instance of that object<li> +<li>has been running <i>all<i> the time</li> +</ul> +<p>The the activation system allows to activate and execute the object +implementation on demand rather than running all time. If the activation +system is persistent, the server can be terminated and then restarted. +The clients, still holding remote references to the server side +activatable objects, will activate those objects again. The server side +objects will be reinstantiated (activated) during the first call of any +remote method of such object. +</p><p> +The RMI client code for activatable objects is no different than the code for +accessing non-activatable remote objects. Activation is a server-side feature. +</p><p> +In order for an object to be activated, the "activatable" object class +(independently if it extends the {@link Activatable} class or not) defines a +special public constructor that takes two arguments, its activation identifier +({@link ActivationID}) and its activation data ({@link java.rmi.MarshalledObject}), +supplied in the activation descriptor used during registration. When an +activation group activates a remote object, it constructs the object via +this special constructor. The remote object implementation may use the +activation data to initialize itself in a needed manner. The remote object may +also retain its activation identifier, so that it can inform the activation +group when it becomes inactive (via a call to the Activatable.inactive method). +</p> +@author Audrius Meskauskas (audriusa@bioinformatics.org) (from empty) +</body> +</html> |