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Apache Struts API Documentation: Package org.apache.struts.action
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<H2>
Package org.apache.struts.action
</H2>
The action package is the core of the struts framework,
providing the "Controller" aspect of a MVC model.
<P>
<B>See: </B>
<BR>
<A HREF="#package_description"><B>Description</B></A>
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<B>Interface Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="PlugIn.html"><I>PlugIn</I></A></B></TD>
<TD>A <strong>PlugIn</strong> is a configuration wrapper for a module-specific resource or service that needs to be notified about application startup and application shutdown events (corresponding to when the container calls <code>init</code> and <code>destroy</code> on the corresponding <A HREF="../../../../org/apache/struts/action/ActionServlet.html"><CODE>ActionServlet</CODE></A> instance).</TD>
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<B>Class Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="Action.html">Action</A></B></TD>
<TD>An <strong>Action</strong> is an adapter between the contents of an incoming HTTP request and the corresponding business logic that should be executed to process this request.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionError.html">ActionError</A></B></TD>
<TD><B>Deprecated.</B> <I>Please use <code>ActionMessage</code> instead, deprecated since 1.2.0.</I></TD>
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<TD WIDTH="15%"><B><A HREF="ActionErrors.html">ActionErrors</A></B></TD>
<TD>A class that encapsulates the error messages being reported by the <code>validate()</code> method of an <code>ActionForm</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionForm.html">ActionForm</A></B></TD>
<TD>An <strong>ActionForm</strong> is a JavaBean optionally associated with one or more <code>ActionMappings</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionFormBean.html">ActionFormBean</A></B></TD>
<TD>An <strong>ActionFormBean</strong> is the definition of a form bean that is loaded from a <code><form-bean></code> element in the Struts configuration file.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionForward.html">ActionForward</A></B></TD>
<TD>An <strong>ActionForward</strong> represents a destination to which the controller, <code>RequestProcessor</code>, might be directed to perform a <code>RequestDispatcher.forward</code> or <code>HttpServletResponse.sendRedirect</code> to, as a result of processing activities of an <code>Action</code> class.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionMapping.html">ActionMapping</A></B></TD>
<TD>An <strong>ActionMapping</strong> represents the information that the controller, <code>RequestProcessor</code>, knows about the mapping of a particular request to an instance of a particular <code>Action</code> class.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionMessage.html">ActionMessage</A></B></TD>
<TD>An encapsulation of an individual message returned by the <code>validate</code> method of an <code>ActionForm</code>, consisting of a message key (to be used to look up message text in an appropriate message resources database) plus up to four placeholder objects that can be used for parametric replacement in the message text.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionMessages.html">ActionMessages</A></B></TD>
<TD>A class that encapsulates messages.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionRedirect.html">ActionRedirect</A></B></TD>
<TD>A subclass of <A HREF="../../../../org/apache/struts/action/ActionForward.html"><CODE>ActionForward</CODE></A> which is designed for use in redirecting requests, with support for adding parameters at runtime.</TD>
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<TD WIDTH="15%"><B><A HREF="ActionServlet.html">ActionServlet</A></B></TD>
<TD><strong>ActionServlet</strong> provides the "controller" in the Model-View-Controller (MVC) design pattern for web applications that is commonly known as "Model 2".</TD>
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<TD WIDTH="15%"><B><A HREF="ActionServletWrapper.html">ActionServletWrapper</A></B></TD>
<TD>Provide a wrapper around an <A HREF="../../../../org/apache/struts/action/ActionServlet.html"><CODE>ActionServlet</CODE></A> to expose only those methods needed by other objects.</TD>
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<TD WIDTH="15%"><B><A HREF="DynaActionForm.html">DynaActionForm</A></B></TD>
<TD>Specialized subclass of <code>ActionForm</code> that allows the creation of form beans with dynamic sets of properties, without requiring the developer to create a Java class for each type of form bean.</TD>
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<TD WIDTH="15%"><B><A HREF="DynaActionFormClass.html">DynaActionFormClass</A></B></TD>
<TD>Implementation of <code>DynaClass</code> for <code>DynaActionForm</code> classes that allow developers to define ActionForms without having to individually code all of the classes.</TD>
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<TD WIDTH="15%"><B><A HREF="ExceptionHandler.html">ExceptionHandler</A></B></TD>
<TD>An <strong>ExceptionHandler</strong> is configured in the Struts configuration file to handle a specific type of exception thrown by an <code>Action.execute</code> method.</TD>
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<TD WIDTH="15%"><B><A HREF="ForwardingActionForward.html">ForwardingActionForward</A></B></TD>
<TD>A subclass of <code>ActionForward</code> that defaults the <code>redirect</code> attribute to <code>false</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="RedirectingActionForward.html">RedirectingActionForward</A></B></TD>
<TD>A subclass of <strong>ActionForward</strong> that defaults the <code>redirect</code> attribute to <code>true</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="RequestActionMapping.html">RequestActionMapping</A></B></TD>
<TD>Subclass of <code>ActionMapping</code> that defaults the form bean scope to <code>request</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="RequestProcessor.html">RequestProcessor</A></B></TD>
<TD><strong>RequestProcessor</strong> contains the processing logic that the <A HREF="../../../../org/apache/struts/action/ActionServlet.html"><CODE>ActionServlet</CODE></A> performs as it receives each servlet request from the container.</TD>
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<TD WIDTH="15%"><B><A HREF="SessionActionMapping.html">SessionActionMapping</A></B></TD>
<TD>Subclass of <code>ActionMapping</code> that defaults the form bean scope to <code>session</code>.</TD>
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<B>Exception Summary</B></FONT></TD>
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<TD WIDTH="15%"><B><A HREF="InvalidCancelException.html">InvalidCancelException</A></B></TD>
<TD> Thrown when a token generated by the Cancel tag is found in the request, but the cancellable property for the Action Mapping is not set.</TD>
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<P>
<A NAME="package_description"><!-- --></A><H2>
Package org.apache.struts.action Description
</H2>
<P>
<p> The action package is the core of the struts framework,
providing the "Controller" aspect of a MVC model.</p>
<br>
<br>
<img src="doc-files/actionUML.gif" alt="Action Package UML" >
<br>
<h2>Package Specification</h2>
##### FILL IN ANY SPECS NEEDED BY JAVA COMPATIBILITY KIT #####
<ul>
<li><a href="">##### REFER TO ANY FRAMEMAKER SPECIFICATION HERE #####</a>
</li>
</ul>
<h2>Related Documentation</h2>
For overviews, tutorials, examples, guides, and tool documentation,
please see:
<ul>
<li><a href="">##### REFER TO NON-SPEC DOCUMENTATION HERE #####</a>
</li>
</ul>
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