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Handler (Axis API)
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org.apache.axis</FONT>
<BR>
Interface Handler</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD>java.io.Serializable</DD>
</DL>
<DL>
<DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../org/apache/axis/Chain.html" title="interface in org.apache.axis">Chain</A>, <A HREF="../../../org/apache/axis/TargetedChain.html" title="interface in org.apache.axis">TargetedChain</A></DD>
</DL>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../org/apache/axis/handlers/BasicHandler.html" title="class in org.apache.axis.handlers">BasicHandler</A>, <A HREF="../../../org/apache/axis/SimpleChain.html" title="class in org.apache.axis">SimpleChain</A>, <A HREF="../../../org/apache/axis/SimpleTargetedChain.html" title="class in org.apache.axis">SimpleTargetedChain</A></DD>
</DL>
<HR>
<DL>
<DT>public interface <B>Handler</B><DT>extends java.io.Serializable</DL>
<P>
An AXIS handler.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Doug Davis (dug@us.ibm.com)</DD>
</DL>
<HR>
<P>
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<B>Method Summary</B></FONT></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#canHandleBlock(javax.xml.namespace.QName)">canHandleBlock</A></B>(<A HREF="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</A>&nbsp;qname)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate if this handler can process <code>qname</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#cleanup()">cleanup</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cleanup is called when the chain containing this Handler object
is done processing the chain.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#generateWSDL(org.apache.axis.MessageContext)">generateWSDL</A></B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Obtain WSDL information.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;org.w3c.dom.Element</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#getDeploymentData(org.w3c.dom.Document)">getDeploymentData</A></B>(org.w3c.dom.Document&nbsp;doc)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This will return the root element of an XML doc that describes the
deployment information about this handler.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#getName()">getName</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the name (i.e.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#getOption(java.lang.String)">getOption</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the option corresponding to the 'name' given.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.util.Hashtable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#getOptions()">getOptions</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the entire list of options.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.util.List</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#getUnderstoodHeaders()">getUnderstoodHeaders</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return a list of QNames which this Handler understands.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#init()">init</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Init is called when the chain containing this Handler object
is instantiated.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#invoke(org.apache.axis.MessageContext)">invoke</A></B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Invoke is called to do the actual work of the Handler object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#onFault(org.apache.axis.MessageContext)">onFault</A></B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Called when a subsequent handler throws a fault.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#setName(java.lang.String)">setName</A></B>(java.lang.String&nbsp;name)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the name (i.e.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#setOption(java.lang.String, java.lang.Object)">setOption</A></B>(java.lang.String&nbsp;name,
java.lang.Object&nbsp;value)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Add the given option (name/value) to this handler's bag of options.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/axis/Handler.html#setOptions(java.util.Hashtable)">setOptions</A></B>(java.util.Hashtable&nbsp;opts)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets a whole list of options.</TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
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<B>Method Detail</B></FONT></TD>
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<A NAME="init()"><!-- --></A><H3>
init</H3>
<PRE>
public void <B>init</B>()</PRE>
<DL>
<DD>Init is called when the chain containing this Handler object
is instantiated.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="cleanup()"><!-- --></A><H3>
cleanup</H3>
<PRE>
public void <B>cleanup</B>()</PRE>
<DL>
<DD>Cleanup is called when the chain containing this Handler object
is done processing the chain.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="invoke(org.apache.axis.MessageContext)"><!-- --></A><H3>
invoke</H3>
<PRE>
public void <B>invoke</B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)
throws <A HREF="../../../org/apache/axis/AxisFault.html" title="class in org.apache.axis">AxisFault</A></PRE>
<DL>
<DD>Invoke is called to do the actual work of the Handler object.
If there is a fault during the processing of this method it is
invoke's job to catch the exception and undo any partial work
that has been completed. Once we leave 'invoke' if a fault
is thrown, this classes 'onFault' method will be called.
Invoke should rethrow any exceptions it catches, wrapped in
an AxisFault.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>msgContext</CODE> - the <code>MessageContext</code> to process with this
<code>Handler</code>.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/apache/axis/AxisFault.html" title="class in org.apache.axis">AxisFault</A></CODE> - if the handler encounters an error</DL>
</DD>
</DL>
<HR>
<A NAME="onFault(org.apache.axis.MessageContext)"><!-- --></A><H3>
onFault</H3>
<PRE>
public void <B>onFault</B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)</PRE>
<DL>
<DD>Called when a subsequent handler throws a fault.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>msgContext</CODE> - the <code>MessageContext</code> to process the fault
to</DL>
</DD>
</DL>
<HR>
<A NAME="canHandleBlock(javax.xml.namespace.QName)"><!-- --></A><H3>
canHandleBlock</H3>
<PRE>
public boolean <B>canHandleBlock</B>(<A HREF="../../../javax/xml/namespace/QName.html" title="class in javax.xml.namespace">QName</A>&nbsp;qname)</PRE>
<DL>
<DD>Indicate if this handler can process <code>qname</code>.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>qname</CODE> - the <code>QName</code> to check
<DT><B>Returns:</B><DD>true if this <code>Handler</code> can handle <code>qname<code>,
false otherwise</DL>
</DD>
</DL>
<HR>
<A NAME="getUnderstoodHeaders()"><!-- --></A><H3>
getUnderstoodHeaders</H3>
<PRE>
public java.util.List <B>getUnderstoodHeaders</B>()</PRE>
<DL>
<DD>Return a list of QNames which this Handler understands. By returning
a particular QName here, we are committing to fulfilling any contracts
defined in the specification of the SOAP header with that QName.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a List of <code>QName</code> instances</DL>
</DD>
</DL>
<HR>
<A NAME="setOption(java.lang.String, java.lang.Object)"><!-- --></A><H3>
setOption</H3>
<PRE>
public void <B>setOption</B>(java.lang.String&nbsp;name,
java.lang.Object&nbsp;value)</PRE>
<DL>
<DD>Add the given option (name/value) to this handler's bag of options.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the option<DD><CODE>value</CODE> - the new value of the option</DL>
</DD>
</DL>
<HR>
<A NAME="getOption(java.lang.String)"><!-- --></A><H3>
getOption</H3>
<PRE>
public java.lang.Object <B>getOption</B>(java.lang.String&nbsp;name)</PRE>
<DL>
<DD>Returns the option corresponding to the 'name' given.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the option
<DT><B>Returns:</B><DD>the value of the option</DL>
</DD>
</DL>
<HR>
<A NAME="setName(java.lang.String)"><!-- --></A><H3>
setName</H3>
<PRE>
public void <B>setName</B>(java.lang.String&nbsp;name)</PRE>
<DL>
<DD>Set the name (i.e. registry key) of this Handler.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the new name</DL>
</DD>
</DL>
<HR>
<A NAME="getName()"><!-- --></A><H3>
getName</H3>
<PRE>
public java.lang.String <B>getName</B>()</PRE>
<DL>
<DD>Return the name (i.e. registry key) for this <code>Handler</code>.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the name for this <code>Handler</code></DL>
</DD>
</DL>
<HR>
<A NAME="getOptions()"><!-- --></A><H3>
getOptions</H3>
<PRE>
public java.util.Hashtable <B>getOptions</B>()</PRE>
<DL>
<DD>Return the entire list of options.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a <code>Hashset</code> containing all name/value pairs</DL>
</DD>
</DL>
<HR>
<A NAME="setOptions(java.util.Hashtable)"><!-- --></A><H3>
setOptions</H3>
<PRE>
public void <B>setOptions</B>(java.util.Hashtable&nbsp;opts)</PRE>
<DL>
<DD>Sets a whole list of options.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>opts</CODE> - a <code>Hashtable</code> of name-value pairs to use</DL>
</DD>
</DL>
<HR>
<A NAME="getDeploymentData(org.w3c.dom.Document)"><!-- --></A><H3>
getDeploymentData</H3>
<PRE>
public org.w3c.dom.Element <B>getDeploymentData</B>(org.w3c.dom.Document&nbsp;doc)</PRE>
<DL>
<DD>This will return the root element of an XML doc that describes the
deployment information about this handler. This is NOT the WSDL,
this is all of the static internal data use by Axis - WSDL takes into
account run-time information (like which service we're talking about)
this is just the data that's stored in the registry. Used by the
'list' Admin function.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>doc</CODE> - a <code>Document</code> within which to build the deployment
data
<DT><B>Returns:</B><DD>an Element representing the deployment data</DL>
</DD>
</DL>
<HR>
<A NAME="generateWSDL(org.apache.axis.MessageContext)"><!-- --></A><H3>
generateWSDL</H3>
<PRE>
public void <B>generateWSDL</B>(<A HREF="../../../org/apache/axis/MessageContext.html" title="class in org.apache.axis">MessageContext</A>&nbsp;msgContext)
throws <A HREF="../../../org/apache/axis/AxisFault.html" title="class in org.apache.axis">AxisFault</A></PRE>
<DL>
<DD>Obtain WSDL information. Some Handlers will implement this by
merely setting properties in the MessageContext, others (providers)
will take responsibility for doing the "real work" of generating
WSDL for a given service.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>msgContext</CODE> - the <code>MessageContext</code> to generate the WSDL
to
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/apache/axis/AxisFault.html" title="class in org.apache.axis">AxisFault</A></CODE> - if there was a problem generating the WSDL</DL>
</DD>
</DL>
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