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| org.apache.click.ajax</FONT> | |
| <BR> | |
| Class DefaultAjaxBehavior</H2> | |
| <PRE> | |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> | |
| <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.click.ajax.DefaultAjaxBehavior</B> | |
| </PRE> | |
| <DL> | |
| <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html" title="interface in org.apache.click.ajax">AjaxBehavior</A>, <A HREF="../../../../org/apache/click/Behavior.html" title="interface in org.apache.click">Behavior</A></DD> | |
| </DL> | |
| <HR> | |
| <DL> | |
| <DT><PRE>public class <B>DefaultAjaxBehavior</B><DT>extends <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html" title="interface in org.apache.click.ajax">AjaxBehavior</A></DL> | |
| </PRE> | |
| <P> | |
| Provides a default implementation of the AjaxBehavior interface. | |
| <p/> | |
| This class also provides the method, | |
| <A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#addHeadElementsOnce(org.apache.click.Control)"><CODE>addHeadElementsOnce</CODE></A>, | |
| that subclasses can implement if they need to add HTML HEAD elements only to | |
| the <tt>first</tt> Control that this Behavior is registered with. | |
| <p/> | |
| If this Behavior should add HTML HEAD elements to all the Controls it is | |
| registered with, rather implement | |
| <A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#preRenderHeadElements(org.apache.click.Control)"><CODE>preRenderHeadElements</CODE></A>. | |
| <P> | |
| <P> | |
| <HR> | |
| <P> | |
| <!-- =========== FIELD SUMMARY =========== --> | |
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>protected boolean</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#headElementsProcessed">headElementsProcessed</A></B></CODE> | |
| <BR> | |
| Indicates whether the Behavior HEAD elements have been processed or not.</TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> | |
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| <B>Constructor Summary</B></FONT></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#DefaultAjaxBehavior()">DefaultAjaxBehavior</A></B>()</CODE> | |
| <BR> | |
| </TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <!-- ========== METHOD SUMMARY =========== --> | |
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE>protected void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#addHeadElementsOnce(org.apache.click.Control)">addHeadElementsOnce</A></B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</CODE> | |
| <BR> | |
| Provides a method for adding HTML HEAD elements to the first Control | |
| this Behavior was registered with.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> boolean</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#isAjaxTarget(org.apache.click.Context)">isAjaxTarget</A></B>(<A HREF="../../../../org/apache/click/Context.html" title="class in org.apache.click">Context</A> context)</CODE> | |
| <BR> | |
| Return true if the behavior is the request target, false otherwise.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> <A HREF="../../../../org/apache/click/ActionResult.html" title="class in org.apache.click">ActionResult</A></CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#onAction(org.apache.click.Control)">onAction</A></B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</CODE> | |
| <BR> | |
| This method can be implemented to handle and respond to an Ajax request.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#preDestroy(org.apache.click.Control)">preDestroy</A></B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</CODE> | |
| <BR> | |
| This event occurs before the Control <A HREF="../../../../org/apache/click/Control.html#onDestroy()"><CODE>onDestroy</CODE></A> | |
| event handler.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#preRenderHeadElements(org.apache.click.Control)">preRenderHeadElements</A></B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</CODE> | |
| <BR> | |
| This event occurs after <A HREF="../../../../org/apache/click/Behavior.html#preResponse(org.apache.click.Control)"><CODE>Behavior.preResponse(org.apache.click.Control)</CODE></A>, | |
| but before the Control's <A HREF="../../../../org/apache/click/Control.html#getHeadElements()"><CODE>Control.getHeadElements()</CODE></A> is called.</TD> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
| <CODE> void</CODE></FONT></TD> | |
| <TD><CODE><B><A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#preResponse(org.apache.click.Control)">preResponse</A></B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</CODE> | |
| <BR> | |
| This event occurs before the markup is written to the HttpServletResponse.</TD> | |
| </TR> | |
| </TABLE> | |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> | |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH> | |
| </TR> | |
| <TR BGCOLOR="white" CLASS="TableRowColor"> | |
| <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> | |
| </TR> | |
| </TABLE> | |
| | |
| <P> | |
| <!-- ============ FIELD DETAIL =========== --> | |
| <A NAME="field_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Field Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="headElementsProcessed"><!-- --></A><H3> | |
| headElementsProcessed</H3> | |
| <PRE> | |
| protected boolean <B>headElementsProcessed</B></PRE> | |
| <DL> | |
| <DD>Indicates whether the Behavior HEAD elements have been processed or not. | |
| <P> | |
| <DL> | |
| </DL> | |
| </DL> | |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> | |
| <A NAME="constructor_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Constructor Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="DefaultAjaxBehavior()"><!-- --></A><H3> | |
| DefaultAjaxBehavior</H3> | |
| <PRE> | |
| public <B>DefaultAjaxBehavior</B>()</PRE> | |
| <DL> | |
| </DL> | |
| <!-- ============ METHOD DETAIL ========== --> | |
| <A NAME="method_detail"><!-- --></A> | |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
| <B>Method Detail</B></FONT></TH> | |
| </TR> | |
| </TABLE> | |
| <A NAME="onAction(org.apache.click.Control)"><!-- --></A><H3> | |
| onAction</H3> | |
| <PRE> | |
| public <A HREF="../../../../org/apache/click/ActionResult.html" title="class in org.apache.click">ActionResult</A> <B>onAction</B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</PRE> | |
| <DL> | |
| <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#onAction(org.apache.click.Control)">AjaxBehavior</A></CODE></B></DD> | |
| <DD>This method can be implemented to handle and respond to an Ajax request. | |
| For example: | |
| <pre class="prettyprint"> | |
| public void onInit() { | |
| ActionLink link = new ActionLink("link"); | |
| link.addBehaior(new DefaultAjaxBehavior() { | |
| public ActionResult onAction(Control source) { | |
| ActionResult result = new ActionResult("<h1>Hello world</h1>", ActionResult.HTML); | |
| return result; | |
| } | |
| }); | |
| } </pre> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#onAction(org.apache.click.Control)">onAction</A></CODE> in interface <CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html" title="interface in org.apache.click.ajax">AjaxBehavior</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>source</CODE> - the control the behavior is registered with | |
| <DT><B>Returns:</B><DD>the action result<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#onAction(org.apache.click.Control)"><CODE>AjaxBehavior.onAction(org.apache.click.Control)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="isAjaxTarget(org.apache.click.Context)"><!-- --></A><H3> | |
| isAjaxTarget</H3> | |
| <PRE> | |
| public boolean <B>isAjaxTarget</B>(<A HREF="../../../../org/apache/click/Context.html" title="class in org.apache.click">Context</A> context)</PRE> | |
| <DL> | |
| <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#isAjaxTarget(org.apache.click.Context)">AjaxBehavior</A></CODE></B></DD> | |
| <DD>Return true if the behavior is the request target, false otherwise. | |
| <p/> | |
| This method is queried by Click to determine if the behavior's | |
| <A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#onAction(org.apache.click.Control)"><CODE>AjaxBehavior.onAction(org.apache.click.Control)</CODE></A> method should be called in | |
| response to a request. | |
| <p/> | |
| By exposing this method through the Behavior interface it provides | |
| implementers with fine grained control over whether the Behavior's | |
| <A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#onAction(org.apache.click.Control)"><CODE>AjaxBehavior.onAction(org.apache.click.Control)</CODE></A> method should be invoked or not. | |
| <p/> | |
| Below is an example implementation: | |
| <pre class="prettyprint"> | |
| public CustomBehavior implements Behavior { | |
| private String eventType; | |
| public CustomBehavior(String eventType) { | |
| // The event type of the behavior | |
| super(eventType); | |
| } | |
| public boolean isAjaxTarget(Context context) { | |
| // Retrieve the eventType parameter from the incoming request | |
| String eventType = context.getRequestParameter("type"); | |
| // Check if this Behavior's eventType matches the request | |
| // "type" parameter | |
| return StringUtils.equalsIgnoreCase(this.eventType, eventType); | |
| } | |
| public ActionResult onAction(Control source) { | |
| // If isAjaxTarget returned true, the onAction method will be | |
| // invoked | |
| ... | |
| } | |
| } </pre> | |
| <P> | |
| <DD><DL> | |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#isAjaxTarget(org.apache.click.Context)">isAjaxTarget</A></CODE> in interface <CODE><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html" title="interface in org.apache.click.ajax">AjaxBehavior</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>context</CODE> - the request context | |
| <DT><B>Returns:</B><DD>true if the behavior is the request target, false otherwise<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/click/ajax/AjaxBehavior.html#isAjaxTarget(org.apache.click.Context)"><CODE>AjaxBehavior.isAjaxTarget(org.apache.click.Context)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="preResponse(org.apache.click.Control)"><!-- --></A><H3> | |
| preResponse</H3> | |
| <PRE> | |
| public void <B>preResponse</B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</PRE> | |
| <DL> | |
| <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/click/Behavior.html#preResponse(org.apache.click.Control)">Behavior</A></CODE></B></DD> | |
| <DD>This event occurs before the markup is written to the HttpServletResponse. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/click/Behavior.html#preResponse(org.apache.click.Control)">preResponse</A></CODE> in interface <CODE><A HREF="../../../../org/apache/click/Behavior.html" title="interface in org.apache.click">Behavior</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>source</CODE> - the control the behavior is registered with<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/click/Behavior.html#preResponse(org.apache.click.Control)"><CODE>Behavior.preResponse(org.apache.click.Control)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="preRenderHeadElements(org.apache.click.Control)"><!-- --></A><H3> | |
| preRenderHeadElements</H3> | |
| <PRE> | |
| public void <B>preRenderHeadElements</B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</PRE> | |
| <DL> | |
| <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/click/Behavior.html#preRenderHeadElements(org.apache.click.Control)">Behavior</A></CODE></B></DD> | |
| <DD>This event occurs after <A HREF="../../../../org/apache/click/Behavior.html#preResponse(org.apache.click.Control)"><CODE>Behavior.preResponse(org.apache.click.Control)</CODE></A>, | |
| but before the Control's <A HREF="../../../../org/apache/click/Control.html#getHeadElements()"><CODE>Control.getHeadElements()</CODE></A> is called. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/click/Behavior.html#preRenderHeadElements(org.apache.click.Control)">preRenderHeadElements</A></CODE> in interface <CODE><A HREF="../../../../org/apache/click/Behavior.html" title="interface in org.apache.click">Behavior</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>source</CODE> - the control the behavior is registered with<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/click/Behavior.html#preRenderHeadElements(org.apache.click.Control)"><CODE>Behavior.preRenderHeadElements(org.apache.click.Control)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="preDestroy(org.apache.click.Control)"><!-- --></A><H3> | |
| preDestroy</H3> | |
| <PRE> | |
| public void <B>preDestroy</B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</PRE> | |
| <DL> | |
| <DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/click/Behavior.html#preDestroy(org.apache.click.Control)">Behavior</A></CODE></B></DD> | |
| <DD>This event occurs before the Control <A HREF="../../../../org/apache/click/Control.html#onDestroy()"><CODE>onDestroy</CODE></A> | |
| event handler. This event allows the behavior to cleanup or store Control | |
| state in the Session. | |
| <P> | |
| <DD><DL> | |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/click/Behavior.html#preDestroy(org.apache.click.Control)">preDestroy</A></CODE> in interface <CODE><A HREF="../../../../org/apache/click/Behavior.html" title="interface in org.apache.click">Behavior</A></CODE></DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>source</CODE> - the control the behavior is registered with<DT><B>See Also:</B><DD><A HREF="../../../../org/apache/click/Behavior.html#preDestroy(org.apache.click.Control)"><CODE>Behavior.preDestroy(org.apache.click.Control)</CODE></A></DL> | |
| </DD> | |
| </DL> | |
| <HR> | |
| <A NAME="addHeadElementsOnce(org.apache.click.Control)"><!-- --></A><H3> | |
| addHeadElementsOnce</H3> | |
| <PRE> | |
| protected void <B>addHeadElementsOnce</B>(<A HREF="../../../../org/apache/click/Control.html" title="interface in org.apache.click">Control</A> source)</PRE> | |
| <DL> | |
| <DD>Provides a method for adding HTML HEAD elements to the first Control | |
| this Behavior was registered with. This method will only be called once, | |
| passing in the first Control the Behavior was registered with. | |
| <p/> | |
| Subclasses can implement this method instead of | |
| <A HREF="../../../../org/apache/click/ajax/DefaultAjaxBehavior.html#preRenderHeadElements(org.apache.click.Control)"><CODE>preRenderHeadElements(org.apache.click.Control)</CODE></A> if HTML HEAD | |
| elements should only be added to one Control, even if the Behavior is | |
| added to multiple Controls. | |
| <P> | |
| <DD><DL> | |
| </DL> | |
| </DD> | |
| <DD><DL> | |
| <DT><B>Parameters:</B><DD><CODE>source</CODE> - the control the behavior is registered with</DL> | |
| </DD> | |
| </DL> | |
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