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+// **********************************************************************
+//
+// Copyright (c) 2002
+// MutableRealms, Inc.
+// Huntsville, AL, USA
+//
+// All Rights Reserved
+//
+// **********************************************************************
+
+#ifndef ICE_SERVICE_ICE
+#define ICE_SERVICE_ICE
+
+#include <Ice/BuiltinSequences.ice>
+#include <Ice/CommunicatorF.ice>
+
+/**
+ *
+ * The basic Ice module, containing all the Ice core functionality.
+ *
+ **/
+module Ice
+{
+    
+/**
+ *
+ * An application service. A Service is managed by a ServiceManager.
+ * A Service's lifecycle has three stages. The ServiceManager will
+ * invoke [init] on all services prior to calling [start], and will
+ * invoke [stop] on all services when [shutdown] is called. The
+ * order in which the services are invoked is not defined.
+ *
+ * <orderedlist>
+ *
+ * <listitem><para><important>init</important> - This is the
+ * opportunity for the service to create a Communicator or Object
+ * Adapter, register servants, etc.</para></listitem>
+ *
+ * <listitem><para><important>start</important> - Perform any
+ * client-side activities which might result in an invocation
+ * on a collocated service.</para></listitem>
+ *
+ * <listitem><para><important>start</important> - Destroy
+ * Communicators, clean up resources, etc.</para></listitem>
+ *
+ * </orderedlist>
+ *
+ * <note><para>If the service requires an object adapter, it should
+ * be created and activated in [init]. However, the service should
+ * refrain from any client-side activities which might result in
+ * an invocation on a collocated service, because the order of
+ * service configuration is not defined and therefore the target
+ * service may not be active yet. Client-side activities can be
+ * safely performed in [start], as the ServiceManager guarantees
+ * that all services will be configured before [start] is invoked.
+ * </para></note>
+ *
+ * @see ServiceManager
+ *
+ **/
+local interface Service
+{
+    /**
+     *
+     * Initialize the Service. The <replaceable>communicator</replaceable>
+     * argument is the Communicator instance created by the ServiceManager.
+     * The service may use this instance, or may create its own as needed.
+     * The advantage of using this Communicator instance is that
+     * invocations between collocated services are optimized.
+     *
+     * <note><para>The ServiceManager owns this Communicator, and is
+     * responsible for destroying it.</para></note>
+     *
+     * @param communicator The ServiceManager's Communicator instance.
+     * @param args The service arguments.
+     *
+     * @see start
+     *
+     **/
+    void init(Communicator communicator, StringSeq args);
+
+    /**
+     *
+     * Start the Service.
+     *
+     **/
+    void start();
+
+    /**
+     *
+     * Stop the Service.
+     *
+     **/
+    void stop();
+};
+
+/**
+ *
+ * An application server.
+ *
+ * @see Service
+ *
+ **/
+interface ServiceManager
+{
+    /**
+     *
+     * Shutdown the server. This will cause [stop] to be invoked on
+     * all configured services.
+     *
+     **/
+    void shutdown();
+};
+
+};
+
+#endif