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POeclipselink inheritance implementation
 

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    <p>I am trying to implement ElcipseLink JPA2.0 for inheritance in my project. Can't use annotation. only xml mappings. </p> <p>Here is my code. public class DefaultEntity {</p> <pre><code>} public class SpecialEntity extends DefaultEntity { public String name; public int age; } public class AnotherSplEntity extends DefaultEntity { long ts; String pkey; } public class MyPersistableEntity { public DefaultEntity de; public void setMyPersistableEntity(DefaultEntity de) { // any subclass can be assigned here. this.de = de } </code></pre> <p>here is my ORM.xml </p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt; &lt;entity-mappings xmlns="http://www.eclipse.org/eclipselink/xsds/persistence/orm" version="2.3"&gt; &lt;persistence-unit-metadata&gt; &lt;exclude-default-mappings /&gt; &lt;/persistence-unit-metadata&gt; &lt;entity class="MyPersistableEntity"&gt; &lt;attributes&gt; &lt;one-to-one name="de"&gt; &lt;cascade&gt; &lt;cascade-all /&gt; &lt;/cascade&gt; &lt;/one-to-one&gt; &lt;/attributes&gt; &lt;/entity&gt; &lt;mapped-superclass class="DefaultEntity"&gt; &lt;attributes&gt; &lt;id name="id" attribute-type="long"&gt; &lt;generated-value strategy="SEQUENCE" /&gt; &lt;/id&gt; &lt;/attributes&gt; &lt;/mapped-superclass&gt; &lt;entity class="SpecialEntity" &gt; &lt;attributes&gt; &lt;id name="id" attribute-type="long"&gt; &lt;generated-value strategy="SEQUENCE" /&gt; &lt;/id&gt; &lt;basic name="name" attribute-type="String" /&gt; &lt;basic name="age" attribute-type="int" /&gt; &lt;/attributes&gt; &lt;/entity&gt; &lt;/entity-mappings&gt; </code></pre> <p>I keep getting " uses a non-entity [class DefaultEntity] as target entity in the relationship attribute [field de]"</p> <p>how to make EclipseLink recognize the actual class assigned and use that mapping?</p> <p>any ideas? foremost, can it be done using EcliseLink?</p> <p>thanks Gopi</p>
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