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| <font color="#ffffff" face="arial,helvetica.sanserif">
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| <a name="ActionMessagesTool Reference Documentation">
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| <strong>ActionMessagesTool Reference Documentation</strong></a></font>
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| </td>
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| <tr>
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| <td NOWRAP> </td>
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| <td>
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| <p> |
| This tool deals with Struts action messages. A few important aspects about action |
| messages are:</p>
|
| <ul> |
| <li>Action message strings are looked up in the message resources. Support |
| for internationalized messages is provided.</li> |
| <li>Action messages can have up to five replacement parameters.</li> |
| <li>Actions have an attribute <code>property</code> that describes the category of |
| message. This allows the view designer to place action messages precisely where they are |
| wanted. Several methods of this tool provide a parameter |
| <code>property</code> that allows to select a specific category of messages to operate |
| on. Without the <code>property</code> parameter, methods operate on all action messages.</li> |
| </ul>
|
| <p>See the Struts User's Guide, section |
| <a href="http://struts.apache.org/struts-doc-1.2.7/userGuide/building_view.html">Building View Components</a> |
| for more information on this topic.</p>
|
| <table cellpadding="0" cellspacing="0">
|
| <tr><td colspan="2"><strong>Class</strong></td></tr>
|
| <tr><td> </td><td>org.apache.velocity.tools.struts.ActionMessagesTool</td></tr>
|
|
|
| <tr><td colspan="2"><strong>Name</strong></td></tr>
|
| <tr><td> </td><td>$messages (this is the recommended name of the tool in
|
| the Velocity context)</td></tr>
|
|
|
| <tr><td colspan="2"><strong>Toolbox Configuration Example</strong></td></tr>
|
| <tr><td> </td><td><pre><tool> |
| <key>messages</key> |
| <scope>request</scope> |
| <class>org.apache.velocity.tools.struts.ActionMessagesTool</class> |
| </tool></pre></td></tr>
|
|
|
| <tr><td colspan="2"><strong>Author(s)</strong></td></tr>
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| <tr>
|
| <td> </td>
|
| <td><a href="mailto:sidler@teamup.com">Gabriel Sidler</a><br>Nathan Bubna<br></td>
|
| </tr>
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| </table>
|
| <dl>
|
| <dt><strong>Method Overview</strong></dt>
|
| <dd>
|
| <table cellpadding="2" cellspacing="2" border="0">
|
| <tr>
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| <td bgcolor="EEEEEE" nowrap>
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| <a href="#exist()">exist()</a></td>
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| <td bgcolor="EEEEEE">
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| |
| Returns <code>true</code> if there are action messages queued, |
| otherwise <code>false</code>. |
|
|
| </td>
|
| </tr>
|
| <tr>
|
| <td bgcolor="EEEEEE" nowrap>
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| <a href="#getSize()">getSize()</a></td>
|
| <td bgcolor="EEEEEE">
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| |
| Returns the number of action messages queued. |
|
|
| </td>
|
| </tr>
|
| <tr>
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| <td bgcolor="EEEEEE" nowrap>
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| <a href="#getGlobal()">getGlobal()</a></td>
|
| <td bgcolor="EEEEEE">
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| |
| This a convenience method and the equivalent of |
| <code>$messages.get($messages.globalName)</code> |
|
|
| </td>
|
| </tr>
|
| <tr>
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| <td bgcolor="EEEEEE" nowrap>
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| <a href="#getAll()">getAll()</a></td>
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| <td bgcolor="EEEEEE">
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| |
| Returns a list of localized action messages for all action messages queued. |
|
|
| </td>
|
| </tr>
|
| <tr>
|
| <td bgcolor="EEEEEE" nowrap>
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| <a href="#get()">get()</a></td>
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| <td bgcolor="EEEEEE">
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| |
| Returns a list of localized action messages for a particular category |
| of action messages. |
|
|
| </td>
|
| </tr>
|
| </table>
|
| </dd>
|
| </dl>
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|
|
| </td>
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| </tr>
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| </table>
|
| <table border="0" cellspacing="0" cellpadding="2" width="100%">
|
| <tr>
|
| <td colspan="2" bgcolor="#525D76">
|
| <font color="#ffffff" face="arial,helvetica.sanserif">
|
| <a name="exist()">
|
| <strong>exist()</strong></a></font>
|
| </td>
|
| </tr>
|
| <tr>
|
| <td NOWRAP> </td>
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| <td>
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|
|
| <p>
|
| <abstract> |
| Returns <code>true</code> if there are action messages queued, |
| otherwise <code>false</code>. |
| </abstract>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| boolean exist() |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| boolean exist(String property) |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <dl>
|
| <dt><strong>Parameters</strong></dt>
|
| <dd>
|
| <dl>
|
| <dt>property</dt>
|
| <dd>
|
| <parameter name="property"> |
| The category of messages to check for. |
| </parameter>
|
| </dd>
|
|
|
|
|
| </dl>
|
| </dd>
|
| </dl>
|
| <dl>
|
| <dt><strong>Returns</strong></dt>
|
| <dd>
|
| <returns> |
| <code>true</code> if there are action messages queued. <code>false</code> otherwise. |
| </returns>
|
| </dd>
|
| </dl>
|
|
|
| <p>Calling <code>exist()</code> without the <code>property</code> parameter checks for action messages of |
| any category. The <code>property</code> parameter can be used to limit the check to |
| action messages of a specific category.</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode>$errors.exist() |
| $errors.exist("password") |
| </sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
|
|
|
|
| <br clear="all">
|
|
|
| </td>
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| </tr>
|
| </table>
|
| <table border="0" cellspacing="0" cellpadding="2" width="100%">
|
| <tr>
|
| <td colspan="2" bgcolor="#525D76">
|
| <font color="#ffffff" face="arial,helvetica.sanserif">
|
| <a name="getSize()">
|
| <strong>getSize()</strong></a></font>
|
| </td>
|
| </tr>
|
| <tr>
|
| <td NOWRAP> </td>
|
| <td>
|
|
|
| <p>
|
| <abstract> |
| Returns the number of action messages queued. |
| </abstract>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| int getSize() |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| int getSize(String property) |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <dl>
|
| <dt><strong>Parameters</strong></dt>
|
| <dd>
|
| <dl>
|
| <dt>property</dt>
|
| <dd>
|
| <parameter name="property"> |
| The category of action messages to operate on. |
| </parameter>
|
| </dd>
|
|
|
|
|
| </dl>
|
| </dd>
|
| </dl>
|
| <dl>
|
| <dt><strong>Returns</strong></dt>
|
| <dd>
|
| <returns> |
| The number of action messages. |
| </returns>
|
| </dd>
|
| </dl>
|
|
|
| <p>Calling <code>getSize()</code> without the <code>property</code> parameter returns the total |
| number of queued action messages. The <code>property</code> parameter can be used to |
| obtain the number of queued action messages for a specific category.</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode>$messages.getSize() |
| $messages.size |
| $messages.getSize("password")</sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
|
|
|
|
| <br clear="all">
|
|
|
| </td>
|
| </tr>
|
| </table>
|
| <table border="0" cellspacing="0" cellpadding="2" width="100%">
|
| <tr>
|
| <td colspan="2" bgcolor="#525D76">
|
| <font color="#ffffff" face="arial,helvetica.sanserif">
|
| <a name="getGlobal()">
|
| <strong>getGlobal()</strong></a></font>
|
| </td>
|
| </tr>
|
| <tr>
|
| <td NOWRAP> </td>
|
| <td>
|
|
|
| <p>
|
| <abstract> |
| This a convenience method and the equivalent of |
| <code>$messages.get($messages.globalName)</code> |
| </abstract>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| List getGlobal() |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <dl>
|
| <dt><strong>Returns</strong></dt>
|
| <dd>
|
| <returns> |
| A list of all messages stored under the "global" property. |
| </returns>
|
| </dd>
|
| </dl>
|
|
|
| <p>See the section on get() for more information.</p>
|
|
|
|
|
| <br clear="all">
|
|
|
| </td>
|
| </tr>
|
| </table>
|
| <table border="0" cellspacing="0" cellpadding="2" width="100%">
|
| <tr>
|
| <td colspan="2" bgcolor="#525D76">
|
| <font color="#ffffff" face="arial,helvetica.sanserif">
|
| <a name="getAll()">
|
| <strong>getAll()</strong></a></font>
|
| </td>
|
| </tr>
|
| <tr>
|
| <td NOWRAP> </td>
|
| <td>
|
|
|
| <p>
|
| <abstract> |
| Returns a list of localized action messages for all action messages queued. |
| </abstract>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| List getAll() |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| List getAll(String bundle) |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <dl>
|
| <dt><strong>Parameters</strong></dt>
|
| <dd>
|
| <dl>
|
| <dt>bundle</dt>
|
| <dd>
|
| <parameter name="bundle"> |
| The (non-default) message-resources bundle that holds the action messages. |
| </parameter>
|
| </dd>
|
|
|
|
|
| </dl>
|
| </dd>
|
| </dl>
|
| <dl>
|
| <dt><strong>Returns</strong></dt>
|
| <dd>
|
| <returns> |
| If the message resources are lacking an action message message for a |
| particular message key, the key itself is used as an action message |
| and a warning is logged. |
| </returns>
|
| </dd>
|
| </dl>
|
|
|
| <p>The following example shows a macro to render the action messages:</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode>#macro (messagesMarkup) |
| #if ($messages.exist()) |
| <ul> |
| #foreach ($e in $messages.all ) |
| <li>$e</li> |
| #end |
| </ul> |
| #end |
| #end</sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
| <p>This produces output similar to the following:</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode><ul> |
| <li>This is the first action message in the queue.</li> |
| <li>This is the second action message in the queue.</li> |
| </ul></sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
|
|
|
|
| <br clear="all">
|
|
|
| </td>
|
| </tr>
|
| </table>
|
| <table border="0" cellspacing="0" cellpadding="2" width="100%">
|
| <tr>
|
| <td colspan="2" bgcolor="#525D76">
|
| <font color="#ffffff" face="arial,helvetica.sanserif">
|
| <a name="get()">
|
| <strong>get()</strong></a></font>
|
| </td>
|
| </tr>
|
| <tr>
|
| <td NOWRAP> </td>
|
| <td>
|
|
|
| <p>
|
| <abstract> |
| Returns a list of localized action messages for a particular category |
| of action messages. |
| </abstract>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| List get(String property) |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <p>
|
| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| List get(String property, String bundle) |
| </signature>
|
| </code></font>
|
| </td></tr></table>
|
| </p>
|
| <dl>
|
| <dt><strong>Parameters</strong></dt>
|
| <dd>
|
| <dl>
|
| <dt>property</dt>
|
| <dd>
|
| <parameter name="property"> |
| The category of action messages to return. |
| </parameter>
|
| </dd>
|
|
|
| <dt>bundle</dt>
|
| <dd>
|
| <parameter name="bundle"> |
| The (non-default) message-resources bundle that holds the action messages. |
| </parameter>
|
| </dd>
|
|
|
|
|
| </dl>
|
| </dd>
|
| </dl>
|
| <dl>
|
| <dt><strong>Returns</strong></dt>
|
| <dd>
|
| <returns> |
| A <code>java.util.List</code> of <code>java.lang.String</code>. |
| If no action messages exist for the specified category, |
| <code>null</code> is returned. |
| If the message resources are lacking an error message for a |
| particular message key, the key itself is used as an action message |
| and a warning is logged. |
| </returns>
|
| </dd>
|
| </dl>
|
|
|
| <p>The following example shows a macro to render the action messages for a |
| particular category of action messages:</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode>#macro (messagesMarkup $property) |
| #if ($messages.exist($property)) |
| <ul> |
| #foreach ($er in $messages.get($property) ) |
| <li>$er</li> |
| #end |
| </ul> |
| #end |
| #end</sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
| <p>This produces output similar to the following:</p>
|
| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
|
| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
|
| <pre><sourcecode><ul> |
| <li>This is the first action message in the queue.</li> |
| <li>TThis is the second action message in the queue.</li> |
| </ul></sourcecode></pre>
|
| </td></tr></table>
|
| </td></tr></table>
|
|
|
|
|
| <br clear="all">
|
|
|
| </td>
|
| </tr>
|
| </table>
|
|
|
| </td>
|
|
|
| </tr>
|
|
|
| <!-- FOOTER SEPARATOR -->
|
| <tr>
|
| <td colspan="2">
|
| <hr noshade="" size="1"/>
|
| </td>
|
| </tr>
|
|
|
| <!-- PAGE FOOTER -->
|
| <tr><td colspan="2">
|
| <div align="center"><font color="#525D76" size="-1"><em>
|
| Copyright © 1999-2003, Apache Software Foundation
|
| </em></font></div>
|
| </td></tr>
|
|
|
| </table>
|
| </body>
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| </html>
|