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POmakePersistent for owned one-to-many rs. not working reliably in JDO
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  1. POmakePersistent for owned one-to-many rs. not working reliably in JDO
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    copied!<p>the makePersistent method of the PersistenceManager is not working reliably. one and the same junit-test is working and after a while its failing again?! i have an object that includes a collection of other objects. that means an 1-n relationship. my problem is that the junit-test of my classes is failing sometimes because the objects in the collection are not persisted properly. i am using usually transactions but the persistanceManager is transaction-optional</p> <p>i tried checking the objectState after each createObject and commit... i figured out that the objects in the collection after a successful commit have no systemId (should be auto-generated) but are in state hollow/persistent-nontransactional.</p> <p>that means sometimes they are (if they are persisted):</p> <p><em>Comment [systemId=Project(1)/Comment(6), JDO-ObjectState=hollow/persistent-nontransactional]</em></p> <p>and sometimes they are (if they are not persisted and a refach of the parent-object contains an empty collection) <em>Comment [systemId=null, JDO-ObjectState=hollow/persistent-nontransactional]</em></p> <p>off course i could check manually if all the stored objects have an systemId but this approach is not nice at all. the commit should just fail!!</p> <p>i do not understand that it is sometimes working and sometimes not! that means my code should not be wrong and this is a bug... pls help me out</p> <p>PS: i can post some code if necessary!</p> <pre><code>@PersistenceCapable public class Ble implements Serializable, JDOObject&lt;Ble&gt; { /** * */ private static final long serialVersionUID = 1L; // NotNull @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key systemId; // NotNull @Persistent private Key parentId; // NotNull @Persistent @Extension(vendorName = "datanucleus", key = "gae.parent-pk", value = "true") private Key projectId; // NotNull @Persistent private String title; @Persistent private int position; @Persistent private boolean hasChildren; @Persistent private BleData requirementData; @Persistent private List&lt;Comment&gt; comments; //getter/setter } </code></pre> <p>childObject</p> <pre><code> @PersistenceCapable public class Comment implements Serializable, JDOObject&lt;Comment&gt; { /** * */ private static final long serialVersionUID = 1L; @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key systemId; @Persistent private String text; @Persistent private long createdTimestamp; //getter//Setter } </code></pre>
 

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