servletendpointcontext.html

j2ee api,很好的api。我这现在有

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<A NAME="getMessageContext()"><!-- --></A><H3>
getMessageContext</H3>
<PRE>
public <A HREF="../../../../javax/xml/rpc/handler/MessageContext.html" title="interface in javax.xml.rpc.handler">MessageContext</A> <B>getMessageContext</B>()</PRE>
<DL>
<DD>The method <code>getMessageContext</code> returns the 
  <code>MessageContext</code> targeted for this endpoint instance.
  This enables the service endpoint instance to acccess the 
  <code>MessageContext</code> propagated by request
  <code>HandlerChain</code> (and its contained <code>Handler</code> 
  instances) to the target endpoint instance and to share any 
  SOAP message processing related context. The endpoint instance
  can access and manipulate the <code>MessageContext</code> 
  and share the SOAP message processing related context with
  the response <code>HandlerChain</code>.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>MessageContext; If there is no associated 
          <code>MessageContext</code>, this method returns
          <code>null</code>.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalStateException.html" title="class or interface in java.lang">IllegalStateException</A></CODE> - if this method is 
           invoked outside a remote method implementation by 
           a service endpoint instance.<DT><B>See Also:</B><DD><A HREF="../../../../javax/xml/rpc/handler/MessageContext.html" title="interface in javax.xml.rpc.handler"><CODE>MessageContext</CODE></A>, 
<A HREF="../../../../javax/xml/rpc/handler/HandlerChain.html" title="interface in javax.xml.rpc.handler"><CODE>HandlerChain</CODE></A>, 
<A HREF="../../../../javax/xml/rpc/handler/Handler.html" title="interface in javax.xml.rpc.handler"><CODE>Handler</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getUserPrincipal()"><!-- --></A><H3>
getUserPrincipal</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/security/Principal.html" title="class or interface in java.security">Principal</A> <B>getUserPrincipal</B>()</PRE>
<DL>
<DD>Returns a <code>java.security.Principal</code> instance that 
  contains the name of the authenticated user for the current
  method invocation on the endpoint instance. This method returns
  <code>null</code> if there is no associated principal yet. 
  The underlying JAX-RPC runtime system takes the responsibility
  of providing the appropriate authenticated principal for a 
  remote method invocation on the service endpoint instance.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>A <code>java.security.Principal</code> for the 
           authenticated principal associated with the current
           invocation on the servlet endpoint instance;
           Returns <code>null</code> if there no authenticated
           user associated with a method invocation.<DT><B>See Also:</B><DD><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/security/Principal.html" title="class or interface in java.security"><CODE>Principal</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getHttpSession()"><!-- --></A><H3>
getHttpSession</H3>
<PRE>
public <A HREF="../../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http">HttpSession</A> <B>getHttpSession</B>()</PRE>
<DL>
<DD>The <code>getHttpSession</code> method returns the current 
  HTTP session (as a <code>javax.servlet.http.HTTPSession</code>). 
  When invoked by the service endpoint within a remote method 
  implementation, the <code>getHttpSession</code> returns the 
  HTTP session associated currently with this method invocation. 
  This method returns <code>null</code> if there is no HTTP 
  session currently active and associated with this service 
  endpoint. An endpoint class should not rely on an active 
  HTTP session being always there; the underlying JAX-RPC
  runtime system is responsible for managing whether or not 
  there is an active HTTP session.

  <p>The getHttpSession method throws <code>JAXRPCException</code> 
  if invoked by an non HTTP bound endpoint.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The HTTP session associated with the current
           invocation or <code>null</code> if there is
           no active session.
<DT><B>Throws:</B>
<DD><CODE>JAXRPCException</CODE> - If this method invoked by any 
                           non-HTTP bound endpoint<DT><B>See Also:</B><DD><A HREF="../../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http"><CODE>HttpSession</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getServletContext()"><!-- --></A><H3>
getServletContext</H3>
<PRE>
public <A HREF="../../../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</A> <B>getServletContext</B>()</PRE>
<DL>
<DD>The method <code>getServletContext</code> returns the 
  <code>ServletContex</code>t associated with the web 
  application that contain this endpoint. According to 
  the Servlet specification, There is one context per web
  application (installed as a WAR) per JVM . A servlet 
  based service endpoint is deployed as part of a web 
  application.
<P>
<DD><DL>

<DT><B>Returns:</B><DD><code>ServletContext</code><DT><B>See Also:</B><DD><A HREF="../../../../javax/servlet/ServletContext.html" title="interface in javax.servlet"><CODE>ServletContext</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isUserInRole(java.lang.String)"><!-- --></A><H3>
isUserInRole</H3>
<PRE>
public boolean <B>isUserInRole</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;role)</PRE>
<DL>
<DD>Returns a boolean indicating whether the authenticated user
  for the current method invocation on the endpoint instance
  is included in the specified logical "role".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>role</CODE> - a <code>String</code> specifying the name
               of the role
<DT><B>Returns:</B><DD>a <code>boolean</code> indicating whether the
           authenticated user associated with the current
           method invocation belongs to a given role;
           <code>false</code> if the user has not been authenticated</DL>
</DD>
</DL>
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