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| <title>VelocityStruts - MessageTool</title>
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| <meta name="author" value="Gabriel Sidler"/>
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| <p><strong><a href="../">Velocity Tools</a></strong></p>
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| <p>
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| <strong>VelocityStruts</strong>
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| <ul>
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| <li><a href="index.html">Overview</a></li>
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| <li><a href="index.html#Benefits">Benefits</a></li>
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| <li><a href="../index.html#Download">Download</a></li>
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| <li><a href="userguide.html">User Guide</a></li>
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| <li><a href="userguide.html#Installation">Installation</a></li>
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| <p>
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| <a href="StrutsTools.html"><strong>VelocityStruts Tools</strong></a>
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| </p>
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| <ul>
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| <li><a href="ActionMessagesTool.html">ActionMessagesTool</a></li>
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| <li><a href="ErrorsTool.html">ErrorsTool</a></li>
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| <li><a href="FormTool.html">FormTool</a></li>
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| <li><a href="MessageTool.html">MessageTool</a></li>
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| <li><a href="StrutsLinkTool.html">StrutsLinkTool</a></li>
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| <li><a href="SecureLinkTool.html">SecureLinkTool</a></li>
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| <li><a href="TilesTool.html">TilesTool</a></li>
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| <li><a href="ValidatorTool.html">ValidatorTool</a></li>
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| <strong>Other Subprojects</strong>
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| </p>
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| <li><a href="../generic/">GenericTools</a></li>
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| <li><a href="../view/">VelocityView</a></li>
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| </ul>
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| <p>
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| </td>
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| <!-- RIGHT SIDE MAIN BODY -->
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| <td colspan="1" valign="top" align="left">
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| <table border="0" cellspacing="0" cellpadding="2" width="100%">
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| <tr>
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| <td colspan="2" bgcolor="#525D76">
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| <font color="#ffffff" face="arial,helvetica.sanserif">
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| <a name="MessageTool Reference Documentation">
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| <strong>MessageTool Reference Documentation</strong></a></font>
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| </td>
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| </tr>
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| <tr>
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| <td NOWRAP> </td>
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| <td>
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| <p> |
| The MessageTool is used to render internationalized message strings. Source |
| of the strings are the message resource bundles of the Struts framework. The |
| following methods operate on these message resources. |
| </p>
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| <table cellpadding="0" cellspacing="0">
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| <tr><td colspan="2"><strong>Class</strong></td></tr>
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| <tr><td> </td><td>org.apache.velocity.tools.struts.MessageTool</td></tr>
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| <tr><td colspan="2"><strong>Name</strong></td></tr>
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| <tr><td> </td><td>$text (this is the recommended name of the tool in
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| the Velocity context)</td></tr>
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| <tr><td colspan="2"><strong>Toolbox Configuration Example</strong></td></tr>
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| <tr><td> </td><td><pre><tool> |
| <key>text</key> |
| <scope>request</scope> |
| <class>org.apache.velocity.tools.struts.MessageTool</class> |
| </tool></pre></td></tr>
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| <tr><td colspan="2"><strong>Author(s)</strong></td></tr>
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| <tr>
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| <td> </td>
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| <td><a href="mailto:sidler@teamup.com">Gabriel Sidler</a><br></td>
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| </tr>
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| </table>
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| <dl>
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| <dt><strong>Method Overview</strong></dt>
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| <dd>
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| <table cellpadding="2" cellspacing="2" border="0">
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| <tr>
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| <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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| |
| Looks up and returns the localized message for the specified key. |
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| </td>
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| </tr>
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| <tr>
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| <td bgcolor="EEEEEE" nowrap>
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| <a href="#exists()">exists()</a></td>
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| <td bgcolor="EEEEEE">
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| |
| Checks if a message string for a specified message key exists |
| for the user's locale. |
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| </td>
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| </tr>
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| </table>
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| </dd>
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| </dl>
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| <td colspan="2" bgcolor="#525D76">
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| <font color="#ffffff" face="arial,helvetica.sanserif">
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| <a name="get()">
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| <strong>get()</strong></a></font>
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| </td>
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| </tr>
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| <tr>
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| <td NOWRAP> </td>
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| <td>
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| <p>
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| <abstract> |
| Looks up and returns the localized message for the specified key. |
| </abstract>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| TextKey get(String key) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| String get(String key, String bundle) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| String get(String key, Object args[]) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| String get(String key, String bundle, Object args[]) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| String get(String key, List args) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| String get(String key, String bundle, List args) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <dl>
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| <dt><strong>Parameters</strong></dt>
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| <dd>
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| <dl>
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| <dt>key</dt>
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| <dd>
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| <parameter name="key"> |
| Message key. |
| </parameter>
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| </dd>
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| <dt>bundle</dt>
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| <dd>
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| <parameter name="bundle"> |
| The (non-default) message-resources bundle that holds the message. |
| </parameter>
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| </dd>
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| <dt>args</dt>
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| <dd>
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| <parameter name="args"> |
| Replacement parameters for this message. Typically |
| an array of Strings or a List of Strings (but any |
| Object with a reasonable <code>toString()</code> |
| method can be used). |
| </parameter>
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| </dd>
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| </dl>
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| </dd>
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| </dl>
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| <dl>
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| <dt><strong>Returns</strong></dt>
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| <dd>
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| <returns> |
| The localized message for the specified key. Returns null if no |
| message exists for the key passed. |
| </returns>
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| </dd>
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| </dl>
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| <dl>
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| <dt><strong>See Also</strong></dt>
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| <dd>
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| <see> |
| Struts user's guide on |
| <a href="http://jakarta.apache.org/struts/userGuide/building_view.html#i18n"> |
| Internationalized Messages</a>. |
| </see>
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| </dd>
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| </dl>
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| <p>The user's locale is consulted to determine the language of the |
| message. The third, fourth, fifth and sixth signatures take a list |
| of up to five replacement parameters. The third and fourth signatures |
| are provided for compatibility with existing applications. The fifth and |
| sixth signatures are more Velocity friendly.</p>
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| <p>Assuming that the message resource files contain the following messages:</p>
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| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
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| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
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| <pre><sourcecode>title=Welcome to Velocity for Struts |
| test=This message has five replacement parameters: {0}, {1}, {2}, {3}, {4} |
| label.one=foobar |
| label.two=woogie!</sourcecode></pre>
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| </td></tr></table>
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| </td></tr></table>
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| <p>then the following Velocity script:</p>
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| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
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| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
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| <pre><sourcecode>$text.title |
| $text.get('test', ['bear', 'wolf', 'tiger']) |
| $text.label.one |
| $text.label.two</sourcecode></pre>
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| </td></tr></table>
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| </td></tr></table>
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| <p>produces this output:</p>
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| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
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| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
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| <pre><sourcecode>Welcome to Velocity for Struts |
| Welcome to Velocity for Struts |
| This message has five replacement parameters: bear, wolf, tiger, {3}, {4} |
| foobar |
| woogie!</sourcecode></pre>
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| </td></tr></table>
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| </td></tr></table>
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| <tr>
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| <td colspan="2" bgcolor="#525D76">
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| <font color="#ffffff" face="arial,helvetica.sanserif">
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| <a name="exists()">
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| <strong>exists()</strong></a></font>
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| </td>
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| </tr>
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| <tr>
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| <td NOWRAP> </td>
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| <td>
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|
| <p>
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| <abstract> |
| Checks if a message string for a specified message key exists |
| for the user's locale. |
| </abstract>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
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| <font size="+1"><code>
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| <signature> |
| boolean exists(String key) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
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| <p>
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| <table width="100%"><tr><td bgcolor="EEEEEE">
|
| <font size="+1"><code>
|
| <signature> |
| boolean exists(String key, String bundle) |
| </signature>
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| </code></font>
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| </td></tr></table>
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| </p>
|
| <dl>
|
| <dt><strong>Parameters</strong></dt>
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| <dd>
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| <dl>
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| <dt>key</dt>
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| <dd>
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| <parameter name="key"> |
| Message key. |
| </parameter>
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| </dd>
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|
|
| <dt>bundle</dt>
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| <dd>
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| <parameter name="bundle"> |
| The (non-default) message-resources bundle that holds the message. |
| </parameter>
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| </dd>
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| </dl>
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| </dd>
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| </dl>
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| <dl>
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| <dt><strong>Returns</strong></dt>
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| <dd>
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| <returns> |
| <code>true</code> if a message string for the specified message |
| key exists for the user's locale. <code>false</code> otherwise. |
| </returns>
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| </dd>
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| </dl>
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| <table width="100%" cellpadding="1" cellspacing="0" border="0"><tr><td bgcolor="#000000">
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| <table width="100%" cellpadding="5" cellspacing="0" border="0"><tr><td bgcolor="#FFFFFF">
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| <pre><sourcecode>$text.exists("title")</sourcecode></pre>
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| </td></tr></table>
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| </td></tr></table>
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| <!-- PAGE FOOTER -->
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| <div align="center"><font color="#525D76" size="-1"><em>
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| Copyright © 1999-2003, Apache Software Foundation
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| </em></font></div>
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