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POfindAll fails after play morphia is reinitialised
 

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  1. POfindAll fails after play morphia is reinitialised
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    <p>I have the following class which is persisted into a mongodb using morphia in a play! application. The class resides in a module which is a dependency of another play! application. </p> <p>Its configuration is read from a file and persisted into the db on initial load (if its not already in the db) and then subsequent requests use the db version. </p> <pre><code>@Entity public class Page extends Model { @Id public Long navigationId; // etc ... } </code></pre> <p>The initial load and subsequent query access works ok and i can see the page in mongo: </p> <pre><code>&gt; db.Page.find({_id:20000}) { "_id" : NumberLong(20000), "className" : "models.Page" etc } </code></pre> <p>However if i restart play! or make a code change that results in Morphia being reinitialised (<code>MorphiaPlugin-1.2.4&gt; initialized</code> appears in the logs) i get the following stack trace: </p> <pre><code>Caused by: java.lang.RuntimeException: java.lang.RuntimeException: com.google.code.morphia.mapping.MappingException: Error setting value from converter (LongConverter) for models.Page.navigationId to 20000 at com.google.code.morphia.mapping.Mapper.fromDb(Mapper.java:487) at com.google.code.morphia.mapping.Mapper.fromDBObject(Mapper.java:267) at com.google.code.morphia.query.MorphiaIterator.convertItem(MorphiaIterator.java:66) at com.google.code.morphia.query.MorphiaIterator.processItem(MorphiaIterator.java:53) at com.google.code.morphia.query.MorphiaIterator.next(MorphiaIterator.java:48) at com.google.code.morphia.query.QueryImpl.asList(QueryImpl.java:255) at play.modules.morphia.Model$MorphiaQuery.asList(Model.java:1067) at models.Page.findAll(Page.java) at plugins.PageConfigLoadPlugin.loadPersistedPages(PageConfigLoadPlugin.java:62) at plugins.PageConfigLoadPlugin.onApplicationStart(PageConfigLoadPlugin.java:51) at play.plugins.PluginCollection.onApplicationStart(PluginCollection.java:425) at play.Play.start(Play.java:495) ... 3 more Caused by: java.lang.RuntimeException: com.google.code.morphia.mapping.MappingException: Error setting value from converter (LongConverter) for models.Page.navigationId to 20000 at com.google.code.morphia.mapping.ValueMapper.fromDBObject(ValueMapper.java:27) at com.google.code.morphia.mapping.Mapper.readMappedField(Mapper.java:501) at com.google.code.morphia.mapping.Mapper.fromDb(Mapper.java:484) ... 14 more Caused by: com.google.code.morphia.mapping.MappingException: Error setting value from converter (LongConverter) for models.Page.navigationId to 20000 at com.google.code.morphia.converters.DefaultConverters.fromDBObject(DefaultConverters.java:133) at com.google.code.morphia.mapping.ValueMapper.fromDBObject(ValueMapper.java:25) ... 16 more </code></pre> <p>If i drop the Collection from mongodb using the command line i can again load and query the Page obejct successfully from my play! web application </p> <pre><code>&gt; db.Page.drop() true </code></pre> <p>As I mentioned, this class is in a module. This problem only happens in one application that the module is a dependency of. The other demo application works fine. </p> <p>any suggestions?</p>
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