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| <h2 title="Interface InvalidReferenceEventHandler" class="title">Interface InvalidReferenceEventHandler</h2> |
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| <dt>All Superinterfaces:</dt> |
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| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../org/apache/velocity/app/event/implement/ReportInvalidReferences.html" title="class in org.apache.velocity.app.event.implement">ReportInvalidReferences</a></dd> |
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| <br> |
| <pre>public interface <span class="typeNameLabel">InvalidReferenceEventHandler</span> |
| extends <a href="../../../../../org/apache/velocity/app/event/EventHandler.html" title="interface in org.apache.velocity.app.event">EventHandler</a></pre> |
| <div class="block">Event handler called when an invalid reference is encountered. Allows |
| the application to report errors or substitute return values. May be chained |
| in sequence; the behavior will differ per method. |
| |
| <p>This feature should be regarded as experimental.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>1.5</dd> |
| <dt><span class="simpleTagLabel">Version:</span></dt> |
| <dd>$Id: InvalidReferenceEventHandler.java 1780734 2017-01-28 19:21:08Z cbrisson $</dd> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd><a href="mailto:wglass@forio.com">Will Glass-Husain</a></dd> |
| </dl> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/app/event/InvalidReferenceEventHandler.html#invalidGetMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.Object-java.lang.String-org.apache.velocity.util.introspection.Info-">invalidGetMethod</a></span>(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> reference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> property, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</code> |
| <div class="block">Called when object is null or there is no getter for the given |
| property.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/app/event/InvalidReferenceEventHandler.html#invalidMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.Object-java.lang.String-org.apache.velocity.util.introspection.Info-">invalidMethod</a></span>(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> reference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> method, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</code> |
| <div class="block">Called when object is null or the given method does not exist.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/velocity/app/event/InvalidReferenceEventHandler.html#invalidSetMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.String-org.apache.velocity.util.introspection.Info-">invalidSetMethod</a></span>(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> leftreference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> rightreference, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</code> |
| <div class="block">Called when object is null or there is no setter for the given |
| property.</div> |
| </td> |
| </tr> |
| </table> |
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| <div class="details"> |
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| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
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| <h3>Method Detail</h3> |
| <a name="invalidGetMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.Object-java.lang.String-org.apache.velocity.util.introspection.Info-"> |
| <!-- --> |
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| <ul class="blockList"> |
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| <h4>invalidGetMethod</h4> |
| <pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> invalidGetMethod(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> reference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> property, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</pre> |
| <div class="block">Called when object is null or there is no getter for the given |
| property. Also called for invalid references without properties. |
| invalidGetMethod() will be called in sequence for |
| each link in the chain until the first non-null value is |
| returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - the context when the reference was found invalid</dd> |
| <dd><code>reference</code> - string with complete invalid reference</dd> |
| <dd><code>object</code> - the object referred to, or null if not found</dd> |
| <dd><code>property</code> - the property name from the reference</dd> |
| <dd><code>info</code> - contains template, line, column details</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>substitute return value for missing reference, or null if no substitute</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="invalidSetMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.String-org.apache.velocity.util.introspection.Info-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>invalidSetMethod</h4> |
| <pre>boolean invalidSetMethod(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> leftreference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> rightreference, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</pre> |
| <div class="block">Called when object is null or there is no setter for the given |
| property. invalidSetMethod() will be called in sequence for |
| each link in the chain until a true value is returned. It's |
| recommended that false be returned as a default to allow |
| for easy chaining.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - the context when the reference was found invalid</dd> |
| <dd><code>leftreference</code> - left reference being assigned to</dd> |
| <dd><code>rightreference</code> - invalid reference on the right</dd> |
| <dd><code>info</code> - contains info on template, line, col</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>if true then stop calling invalidSetMethod along the |
| chain.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="invalidMethod-org.apache.velocity.context.Context-java.lang.String-java.lang.Object-java.lang.String-org.apache.velocity.util.introspection.Info-"> |
| <!-- --> |
| </a> |
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| <h4>invalidMethod</h4> |
| <pre><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> invalidMethod(<a href="../../../../../org/apache/velocity/context/Context.html" title="interface in org.apache.velocity.context">Context</a> context, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> reference, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> method, |
| <a href="../../../../../org/apache/velocity/util/introspection/Info.html" title="class in org.apache.velocity.util.introspection">Info</a> info)</pre> |
| <div class="block">Called when object is null or the given method does not exist. |
| invalidMethod() will be called in sequence for each link in |
| the chain until the first non-null value is returned.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - the context when the reference was found invalid</dd> |
| <dd><code>reference</code> - string with complete invalid reference</dd> |
| <dd><code>object</code> - the object referred to, or null if not found</dd> |
| <dd><code>method</code> - the name of the (non-existent) method</dd> |
| <dd><code>info</code> - contains template, line, column details</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>substitute return value for missing reference, or null if no substitute</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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