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1.37 +
1.38 +<P>Allows programmers to construct object implementations that are portable
1.39 +between different ORB products.
1.40 +
1.41 +<P>The Portable Object Adaptor (POA) is designed to meet the following goals:
1.42 +<P>
1.43 +<UL>
1.44 +<LI>Allow programmers to construct object implementations that are portable between different ORB products.
1.45 +<LI>Provide support for objects with persistent identities.
1.46 +<LI>Provide support for transparent activation of objects.
1.47 +<LI>Allow a single servant to support multiple object identities simultaneously.
1.48 +</UL>
1.49 +
1.50 +
1.51 +
1.52 +<P>Given an interface <tt>My</tt> defined in <tt>My.idl</tt>, the file <tt>MyPOA.java</tt> is generated by the <tt>idlj</tt> compiler. You must provide the implementation for <tt>My</tt> and it must inherit from <tt>MyPOA</tt>.
1.53 +
1.54 +<P><TT>MyPOA.java</TT> is a stream-based skeleton that extends <tt>org.omg.PortableServer.Servant</tt> and implements the <tt>InvokeHandler</tt> interface and the operations interface associated with the IDL interface the skeleton implements.
1.55 +
1.56 +<P>The <TT>PortableServer</TT> module for the Portable Object Adapter (POA) defines the native <tt>Servant</tt> type. In the Java programming language, the <tt>Servant</tt> type is mapped to the Java <TT>org.omg.PortableServer.Servant</TT> class. It serves as the base class for all POA servant implementations and provides a number of methods that may
1.57 +be invoked by the application programmer, as well as methods which are invoked by the POA itself and may be overridden by the user to control aspects of servant behavior.
1.58 +
1.59 +
1.60 +
1.61 +<P>All Mapping corresponds to the Chapter 11 of
1.62 + CORBA V2.3.1 specified by OMG document formal/99-10-07.pdf.
1.63 + The exception to this is the <code>id</code> attribute, which is added in ptc/00-08-06,
1.64 + section 11.3.8.26.
1.65 +
1.66 +<H3>Package Specification</H3>
1.67 +
1.68 +<P>For a precise list of supported sections of official specifications with which
1.69 +the Java[tm] Platform, Standard Edition 6, ORB complies, see <A
1.70 +HREF="../../CORBA/doc-files/compliance.html">Official Specifications for CORBA
1.71 +support in Java[tm] SE 6</A>.
1.72 +<p>
1.73 +@since 1.4
1.74 +<br>
1.75 +@serial exclude
1.76 +</body>
1.77 +</html>
