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<div class="subTitle">com.opensymphony.xwork2.interceptor</div>
<h2 title="Class ConversionErrorInterceptor" class="title">Class ConversionErrorInterceptor</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../../../com/opensymphony/xwork2/interceptor/AbstractInterceptor.html" title="class in com.opensymphony.xwork2.interceptor">com.opensymphony.xwork2.interceptor.AbstractInterceptor</a></li>
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<ul class="inheritance">
<li><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html" title="class in com.opensymphony.xwork2.interceptor">com.opensymphony.xwork2.interceptor.MethodFilterInterceptor</a></li>
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<ul class="inheritance">
<li>com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../com/opensymphony/xwork2/interceptor/Interceptor.html" title="interface in com.opensymphony.xwork2.interceptor">Interceptor</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/apache/struts2/interceptor/StrutsConversionErrorInterceptor.html" title="class in org.apache.struts2.interceptor">StrutsConversionErrorInterceptor</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">ConversionErrorInterceptor</span>
extends <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html" title="class in com.opensymphony.xwork2.interceptor">MethodFilterInterceptor</a></pre>
<div class="block"><!-- START SNIPPET: description -->
ConversionErrorInterceptor adds conversion errors from the ActionContext to the Action's field errors.
<p>
This interceptor adds any error found in the <a href="../../../../com/opensymphony/xwork2/ActionContext.html" title="class in com.opensymphony.xwork2"><code>ActionContext</code></a>'s conversionErrors map as a field error (provided
that the action implements <a href="../../../../com/opensymphony/xwork2/interceptor/ValidationAware.html" title="interface in com.opensymphony.xwork2.interceptor"><code>ValidationAware</code></a>). In addition, any field that contains a validation error has its
original value saved such that any subsequent requests for that value return the original value rather than the value
in the action. This is important because if the value "abc" is submitted and can't be converted to an int, we want to
display the original string ("abc") again rather than the int value (likely 0, which would make very little sense to
the user).
</p>
<p>
<b>Note:</b> Since 2.5.2, this interceptor extends <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html" title="class in com.opensymphony.xwork2.interceptor"><code>MethodFilterInterceptor</code></a>, therefore being
able to deal with excludeMethods / includeMethods parameters. See [Workflow Interceptor]
(class <a href="../../../../com/opensymphony/xwork2/interceptor/DefaultWorkflowInterceptor.html" title="class in com.opensymphony.xwork2.interceptor"><code>DefaultWorkflowInterceptor</code></a>) for documentation and examples on how to use this feature.
</p>
<!-- END SNIPPET: description -->
<p><u>Interceptor parameters:</u></p>
<!-- START SNIPPET: parameters -->
<ul>
<li>None</li>
</ul>
<!-- END SNIPPET: parameters -->
<p> <u>Extending the interceptor:</u></p>
<!-- START SNIPPET: extending -->
Because this interceptor is not web-specific, it abstracts the logic for whether an error should be added. This
allows for web-specific interceptors to use more complex logic in the <a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#shouldAddError-java.lang.String-java.lang.Object-"><code>shouldAddError(java.lang.String, java.lang.Object)</code></a> method for when a value
has a conversion error but is null or empty or otherwise indicates that the value was never actually entered by the
user.
<!-- END SNIPPET: extending -->
<p> <u>Example code:</u></p>
<pre>
<!-- START SNIPPET: example -->
&lt;action name="someAction" class="com.examples.SomeAction"&gt;
&lt;interceptor-ref name="params"/&gt;
&lt;interceptor-ref name="conversionError"/&gt;
&lt;result name="success"&gt;good_result.ftl&lt;/result&gt;
&lt;/action&gt;
<!-- END SNIPPET: example -->
</pre></div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Jason Carreira</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../serialized-form.html#com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor">Serialized Form</a></dd>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#ORIGINAL_PROPERTY_OVERRIDE">ORIGINAL_PROPERTY_OVERRIDE</a></span></code>&nbsp;</td>
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<code><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#excludeMethods">excludeMethods</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#includeMethods">includeMethods</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#ConversionErrorInterceptor--">ConversionErrorInterceptor</a></span>()</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#doIntercept-com.opensymphony.xwork2.ActionInvocation-">doIntercept</a></span>(<a href="../../../../com/opensymphony/xwork2/ActionInvocation.html" title="interface in com.opensymphony.xwork2">ActionInvocation</a>&nbsp;invocation)</code>
<div class="block">Subclasses must override to implement the interceptor logic.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#escape-java.lang.Object-">escape</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/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="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#getOverrideExpr-com.opensymphony.xwork2.ActionInvocation-java.lang.Object-">getOverrideExpr</a></span>(<a href="../../../../com/opensymphony/xwork2/ActionInvocation.html" title="interface in com.opensymphony.xwork2">ActionInvocation</a>&nbsp;invocation,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/opensymphony/xwork2/interceptor/ConversionErrorInterceptor.html#shouldAddError-java.lang.String-java.lang.Object-">shouldAddError</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;propertyName,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</code>&nbsp;</td>
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<code><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#applyInterceptor-com.opensymphony.xwork2.ActionInvocation-">applyInterceptor</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#getExcludeMethodsSet--">getExcludeMethodsSet</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#getIncludeMethodsSet--">getIncludeMethodsSet</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#intercept-com.opensymphony.xwork2.ActionInvocation-">intercept</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#setExcludeMethods-java.lang.String-">setExcludeMethods</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#setIncludeMethods-java.lang.String-">setIncludeMethods</a></code></li>
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<h3>Methods inherited from class&nbsp;com.opensymphony.xwork2.interceptor.<a href="../../../../com/opensymphony/xwork2/interceptor/AbstractInterceptor.html" title="class in com.opensymphony.xwork2.interceptor">AbstractInterceptor</a></h3>
<code><a href="../../../../com/opensymphony/xwork2/interceptor/AbstractInterceptor.html#destroy--">destroy</a>, <a href="../../../../com/opensymphony/xwork2/interceptor/AbstractInterceptor.html#init--">init</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Field Detail</h3>
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<h4>ORIGINAL_PROPERTY_OVERRIDE</h4>
<pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> ORIGINAL_PROPERTY_OVERRIDE</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.ORIGINAL_PROPERTY_OVERRIDE">Constant Field Values</a></dd>
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<h4>ConversionErrorInterceptor</h4>
<pre>public&nbsp;ConversionErrorInterceptor()</pre>
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<h4>getOverrideExpr</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;getOverrideExpr(<a href="../../../../com/opensymphony/xwork2/ActionInvocation.html" title="interface in com.opensymphony.xwork2">ActionInvocation</a>&nbsp;invocation,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</pre>
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<h4>escape</h4>
<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;escape(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</pre>
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<a name="doIntercept-com.opensymphony.xwork2.ActionInvocation-">
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<h4>doIntercept</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;doIntercept(<a href="../../../../com/opensymphony/xwork2/ActionInvocation.html" title="interface in com.opensymphony.xwork2">ActionInvocation</a>&nbsp;invocation)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#doIntercept-com.opensymphony.xwork2.ActionInvocation-">MethodFilterInterceptor</a></code></span></div>
<div class="block">Subclasses must override to implement the interceptor logic.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html#doIntercept-com.opensymphony.xwork2.ActionInvocation-">doIntercept</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.html" title="class in com.opensymphony.xwork2.interceptor">MethodFilterInterceptor</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>invocation</code> - the action invocation</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the result of invocation</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code> - in case of any errors</dd>
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<h4>shouldAddError</h4>
<pre>protected&nbsp;boolean&nbsp;shouldAddError(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;propertyName,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value)</pre>
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