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| <h2 title="Interface FieldInterceptor" class="title">Interface FieldInterceptor</h2> |
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| <pre>public interface <a href="../../../../src-html/org/apache/felix/ipojo/FieldInterceptor.html#line.28">FieldInterceptor</a></pre> |
| <div class="block">A field interceptor is notified when a monitored field asks for a value or |
| receives a new value. A class implementing this interface is able to be |
| notified of field accesses, and is able to inject a value to this field. |
| The listener needs to be register on the instance manager.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd><a href="mailto:dev@felix.apache.org">Felix Project Team</a></dd> |
| </dl> |
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| <h3>Method Summary</h3> |
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| <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> |
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| <td class="colFirst"><code><a href="http://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="../../../../org/apache/felix/ipojo/FieldInterceptor.html#onGet-java.lang.Object-java.lang.String-java.lang.Object-">onGet</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> pojo, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> value)</code> |
| <div class="block">This method is called when a GETFIELD operation is detected.</div> |
| </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/felix/ipojo/FieldInterceptor.html#onSet-java.lang.Object-java.lang.String-java.lang.Object-">onSet</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> pojo, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> value)</code> |
| <div class="block">This method is called when a PUTFIELD operation is detected, |
| e.g.</div> |
| </td> |
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| <h4>onSet</h4> |
| <pre>void <a href="../../../../src-html/org/apache/felix/ipojo/FieldInterceptor.html#line.37">onSet</a>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> pojo, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> value)</pre> |
| <div class="block">This method is called when a PUTFIELD operation is detected, |
| e.g. an assignation.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pojo</code> - the pojo object setting the value</dd> |
| <dd><code>fieldName</code> - the field name</dd> |
| <dd><code>value</code> - the value passed to the field</dd> |
| </dl> |
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| <h4>onGet</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> <a href="../../../../src-html/org/apache/felix/ipojo/FieldInterceptor.html#line.47">onGet</a>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> pojo, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName, |
| <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> value)</pre> |
| <div class="block">This method is called when a GETFIELD operation is detected. |
| This method allows to inject a value to the field.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pojo</code> - the pojo object getting the value</dd> |
| <dd><code>fieldName</code> - the field name</dd> |
| <dd><code>value</code> - the value passed to the field (by the previous call)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the managed value of the field</dd> |
| </dl> |
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