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DynaActionFormClass (Apache Struts API Documentation)
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org.apache.struts.action</FONT>
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Class DynaActionFormClass</H2>
<PRE>
java.lang.Object
|
+--<B>org.apache.struts.action.DynaActionFormClass</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>org.apache.commons.beanutils.DynaClass, java.io.Serializable</DD>
</DL>
<HR>
<DL>
<DT>public class <B>DynaActionFormClass</B><DT>extends java.lang.Object<DT>implements org.apache.commons.beanutils.DynaClass, java.io.Serializable</DL>
<P>
<p>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.
<strong>NOTE</strong> - This class is only used in the internal
implementation of dynamic action form beans. Applications never need
to consult this documentation.</p>
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>Struts 1.1</DD>
<DT><B>Version:</B></DT>
<DD>$Revision: 1.1 $ $Date: 2003-08-22 09:14:33 +0100 (Fri, 22 Aug 2003) $</DD>
<DT><B>Author:</B></DT>
<DD>Craig McClanahan</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html" TARGET="org.apache.struts.action.DynaActionFormClass">Serialized Form</A></DL>
<HR>
<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->
<!-- =========== FIELD SUMMARY =========== -->
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<TD COLSPAN=2><FONT SIZE="+2">
<B>Field Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected java.lang.Class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#beanClass">beanClass</A></B></CODE>
<BR>
The <code>DynaActionForm</code> implementation <code>Class</code> which
we will use to create new bean instances.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected <A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#config">config</A></B></CODE>
<BR>
The form bean configuration information for this class.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected static java.util.HashMap</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#dynaClasses">dynaClasses</A></B></CODE>
<BR>
The set of <code>DynaActionFormClass</code> instances that have
ever been created, keyed by the form bean name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#lock">lock</A></B></CODE>
<BR>
The lockable object we can synchronize on, even if dynaClasses
is null,</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#name">name</A></B></CODE>
<BR>
The "dynamic class name" for this <code>DynaClass</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected org.apache.commons.beanutils.DynaProperty[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#properties">properties</A></B></CODE>
<BR>
The set of dynamic properties that are part of this DynaClass.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected java.util.HashMap</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#propertiesMap">propertiesMap</A></B></CODE>
<BR>
The set of dynamic properties that are part of this DynaClass,
keyed by the property name.</TD>
</TR>
</TABLE>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#DynaActionFormClass(org.apache.struts.config.FormBeanConfig)">DynaActionFormClass</A></B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</CODE>
<BR>
Construct a new DynaActionFormClass for the specified form bean
configuration.</TD>
</TR>
</TABLE>
<!-- ========== METHOD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#clear()">clear</A></B>()</CODE>
<BR>
Clear our cache of DynaActionFormClass instances.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static <A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html">DynaActionFormClass</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#createDynaActionFormClass(org.apache.struts.config.FormBeanConfig)">createDynaActionFormClass</A></B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</CODE>
<BR>
Create (if necessary) and return a new <code>DynaActionFormClass</code>
instance for the specified form bean configuration instance.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected java.lang.Class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#getBeanClass()">getBeanClass</A></B>()</CODE>
<BR>
Return the implementation class we are using to construct new
instances, re-introspecting our <A HREF="../../../../org/apache/struts/config/FormBeanConfig.html"><CODE>FormBeanConfig</CODE></A> if necessary
(that is, after being deserialized, since <code>beanClass</code> is
marked transient.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> org.apache.commons.beanutils.DynaProperty[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#getDynaProperties()">getDynaProperties</A></B>()</CODE>
<BR>
Return an array of <code>DynaProperty</code>s for the properties
currently defined in this DynaClass.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> org.apache.commons.beanutils.DynaProperty</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#getDynaProperty(java.lang.String)">getDynaProperty</A></B>(java.lang.String name)</CODE>
<BR>
Return a property descriptor for the specified property, if it exists;
otherwise, return <code>null</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#getName()">getName</A></B>()</CODE>
<BR>
Return the name of this DynaClass (analogous to the
<code>getName()</code> method of <code>java.lang.Class</code), which
allows the same <code>DynaClass</code> implementation class to support
different dynamic classes, with different sets of properties.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#introspect(org.apache.struts.config.FormBeanConfig)">introspect</A></B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</CODE>
<BR>
Introspect our form bean configuration to identify the supported
properties.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> org.apache.commons.beanutils.DynaBean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#newInstance()">newInstance</A></B>()</CODE>
<BR>
Instantiate and return a new <A HREF="../../../../org/apache/struts/action/DynaActionForm.html"><CODE>DynaActionForm</CODE></A> instance,
associated with this <code>DynaActionFormClass</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html#toString()">toString</A></B>()</CODE>
<BR>
Render a String representation of this object.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ FIELD DETAIL =========== -->
<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Field Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="beanClass"><!-- --></A><H3>
beanClass</H3>
<PRE>
protected transient java.lang.Class <B>beanClass</B></PRE>
<DL>
<DD>The <code>DynaActionForm</code> implementation <code>Class</code> which
we will use to create new bean instances.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="config"><!-- --></A><H3>
config</H3>
<PRE>
protected <A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> <B>config</B></PRE>
<DL>
<DD>The form bean configuration information for this class.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="name"><!-- --></A><H3>
name</H3>
<PRE>
protected java.lang.String <B>name</B></PRE>
<DL>
<DD>The "dynamic class name" for this <code>DynaClass</code>.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="properties"><!-- --></A><H3>
properties</H3>
<PRE>
protected org.apache.commons.beanutils.DynaProperty[] <B>properties</B></PRE>
<DL>
<DD>The set of dynamic properties that are part of this DynaClass.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="propertiesMap"><!-- --></A><H3>
propertiesMap</H3>
<PRE>
protected java.util.HashMap <B>propertiesMap</B></PRE>
<DL>
<DD>The set of dynamic properties that are part of this DynaClass,
keyed by the property name. Individual descriptor instances will
be the same instances as those in the <code>properties</code> list.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="dynaClasses"><!-- --></A><H3>
dynaClasses</H3>
<PRE>
protected static transient java.util.HashMap <B>dynaClasses</B></PRE>
<DL>
<DD>The set of <code>DynaActionFormClass</code> instances that have
ever been created, keyed by the form bean name.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="lock"><!-- --></A><H3>
lock</H3>
<PRE>
protected static java.lang.String <B>lock</B></PRE>
<DL>
<DD>The lockable object we can synchronize on, even if dynaClasses
is null,
<P>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="DynaActionFormClass(org.apache.struts.config.FormBeanConfig)"><!-- --></A><H3>
DynaActionFormClass</H3>
<PRE>
private <B>DynaActionFormClass</B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</PRE>
<DL>
<DD>Construct a new DynaActionFormClass for the specified form bean
configuration. This constructor is private; DynaActionFormClass
instances will be created as needed via calls to the
static <code>createDynaActionFormClass()</code> method.
<P>
<DT><B>Parameters:</B><DD><CODE>config</CODE> - The FormBeanConfig instance describing the properties
of the bean to be created
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the bean implementation class
specified in the configuration is not DynaActionForm (or a subclass
of DynaActionForm)</DL>
<!-- ============ METHOD DETAIL ========== -->
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<B>Method Detail</B></FONT></TD>
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<A NAME="getName()"><!-- --></A><H3>
getName</H3>
<PRE>
public java.lang.String <B>getName</B>()</PRE>
<DL>
<DD>Return the name of this DynaClass (analogous to the
<code>getName()</code> method of <code>java.lang.Class</code), which
allows the same <code>DynaClass</code> implementation class to support
different dynamic classes, with different sets of properties.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getName</CODE> in interface <CODE>org.apache.commons.beanutils.DynaClass</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getDynaProperty(java.lang.String)"><!-- --></A><H3>
getDynaProperty</H3>
<PRE>
public org.apache.commons.beanutils.DynaProperty <B>getDynaProperty</B>(java.lang.String name)</PRE>
<DL>
<DD>Return a property descriptor for the specified property, if it exists;
otherwise, return <code>null</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getDynaProperty</CODE> in interface <CODE>org.apache.commons.beanutils.DynaClass</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - Name of the dynamic property for which a descriptor
is requested
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if no property name is specified</DL>
</DD>
</DL>
<HR>
<A NAME="getDynaProperties()"><!-- --></A><H3>
getDynaProperties</H3>
<PRE>
public org.apache.commons.beanutils.DynaProperty[] <B>getDynaProperties</B>()</PRE>
<DL>
<DD><p>Return an array of <code>DynaProperty</code>s for the properties
currently defined in this DynaClass. If no properties are defined, a
zero-length array will be returned.</p>
<p><strong>FIXME</strong> - Should we really be implementing
<code>getBeanInfo()</code> instead, which returns property descriptors
and a bunch of other stuff?</p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getDynaProperties</CODE> in interface <CODE>org.apache.commons.beanutils.DynaClass</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="newInstance()"><!-- --></A><H3>
newInstance</H3>
<PRE>
public org.apache.commons.beanutils.DynaBean <B>newInstance</B>()
throws java.lang.IllegalAccessException,
java.lang.InstantiationException</PRE>
<DL>
<DD><p>Instantiate and return a new <A HREF="../../../../org/apache/struts/action/DynaActionForm.html"><CODE>DynaActionForm</CODE></A> instance,
associated with this <code>DynaActionFormClass</code>. The
properties of the returned <A HREF="../../../../org/apache/struts/action/DynaActionForm.html"><CODE>DynaActionForm</CODE></A> will have been
initialized to the default values specified in the form bean
configuration information.</p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>newInstance</CODE> in interface <CODE>org.apache.commons.beanutils.DynaClass</CODE></DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalAccessException</CODE> - if the Class or the appropriate
constructor is not accessible
<DD><CODE>java.lang.InstantiationException</CODE> - if this Class represents an abstract
class, an array class, a primitive type, or void; or if instantiation
fails for some other reason</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Render a String representation of this object.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public static void <B>clear</B>()</PRE>
<DL>
<DD>Clear our cache of DynaActionFormClass instances.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="createDynaActionFormClass(org.apache.struts.config.FormBeanConfig)"><!-- --></A><H3>
createDynaActionFormClass</H3>
<PRE>
public static <A HREF="../../../../org/apache/struts/action/DynaActionFormClass.html">DynaActionFormClass</A> <B>createDynaActionFormClass</B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</PRE>
<DL>
<DD>Create (if necessary) and return a new <code>DynaActionFormClass</code>
instance for the specified form bean configuration instance.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>config</CODE> - The FormBeanConfig instance describing the properties
of the bean to be created
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the bean implementation class
specified in the configuration is not DynaActionForm (or a subclass
of DynaActionForm)</DL>
</DD>
</DL>
<HR>
<A NAME="getBeanClass()"><!-- --></A><H3>
getBeanClass</H3>
<PRE>
protected java.lang.Class <B>getBeanClass</B>()</PRE>
<DL>
<DD>Return the implementation class we are using to construct new
instances, re-introspecting our <A HREF="../../../../org/apache/struts/config/FormBeanConfig.html"><CODE>FormBeanConfig</CODE></A> if necessary
(that is, after being deserialized, since <code>beanClass</code> is
marked transient.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="introspect(org.apache.struts.config.FormBeanConfig)"><!-- --></A><H3>
introspect</H3>
<PRE>
protected void <B>introspect</B>(<A HREF="../../../../org/apache/struts/config/FormBeanConfig.html">FormBeanConfig</A> config)</PRE>
<DL>
<DD>Introspect our form bean configuration to identify the supported
properties.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>config</CODE> - The FormBeanConfig instance describing the properties
of the bean to be created
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the bean implementation class
specified in the configuration is not DynaActionForm (or a subclass
of DynaActionForm)</DL>
</DD>
</DL>
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