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| <a href="annotations.html" title="back to Annotations"><< back to Annotations</a> |
| |
| <h1 id="fieldexpressionvalidator-annotation">FieldExpressionValidator Annotation</h1> |
| |
| <p>This validator uses an OGNL expression to perform its validator. The error message will be added to the field if the expression |
| returns false when it is evaluated against the value stack.</p> |
| |
| <h2 id="usage">Usage</h2> |
| |
| <p>The annotation must be applied at method level.</p> |
| |
| <h2 id="parameters">Parameters</h2> |
| |
| <p> <table class="confluenceTable" summary=""> |
| <tr> |
| <th class="confluenceTh"> Parameter </th> |
| <th class="confluenceTh"> Required </th> |
| <th class="confluenceTh"> Default </th> |
| <th class="confluenceTh"> Notes </th> |
| </tr> |
| <tr> |
| <td class="confluenceTd">message</td> |
| <td class="confluenceTd">yes</td> |
| <td class="confluenceTd"> </td> |
| <td class="confluenceTd">field error message</td> |
| </tr> |
| <tr> |
| <td class="confluenceTd">key</td> |
| <td class="confluenceTd">no</td> |
| <td class="confluenceTd"> </td> |
| <td class="confluenceTd">i18n key from language specific properties file.</td> |
| </tr> |
| <tr> |
| <td class="confluenceTd">messageParams</td> |
| <td class="confluenceTd">no</td> |
| <td class="confluenceTd"> </td> |
| <td class="confluenceTd">Additional params to be used to customize message - will be evaluated against the Value Stack</td> |
| </tr> |
| <tr> |
| <td class="confluenceTd">fieldName</td> |
| <td class="confluenceTd">no</td> |
| <td class="confluenceTd"> </td> |
| <td class="confluenceTd"> </td> |
| </tr> |
| <tr> |
| <td class="confluenceTd">shortCircuit</td> |
| <td class="confluenceTd">no</td> |
| <td class="confluenceTd">false</td> |
| <td class="confluenceTd">If this validator should be used as shortCircuit.</td> |
| </tr> |
| <tr> |
| <td class="confluenceTd"> expression </td> |
| <td class="confluenceTd"> yes </td> |
| <td class="confluenceTd"> </td> |
| <td class="confluenceTd"> An OGNL expression that returns a boolean value. </td> |
| </tr> |
| </table> |
| </p> |
| |
| <h2 id="examples">Examples</h2> |
| |
| <div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code> <span class="nd">@FieldExpressionValidator</span><span class="o">(</span><span class="n">message</span> <span class="o">=</span> <span class="s">"Default message"</span><span class="o">,</span> <span class="n">key</span> <span class="o">=</span> <span class="s">"i18n.key"</span><span class="o">,</span> <span class="n">shortCircuit</span> <span class="o">=</span> <span class="kc">true</span><span class="o">,</span> <span class="n">expression</span> <span class="o">=</span> <span class="s">"an OGNL expression"</span><span class="o">)</span> |
| |
| </code></pre></div></div> |
| |
| </section> |
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