About JDO

api-jdo

getObjectId(pc)

Return a copy of the JDO identity associated with the parameter instance.(Static Method of javax.jdo.JDOHelper)

 
api-jdo

javax.jdo.JDONullIdentityException

An instance of this class is thrown when attempting to create an object id when the object id constructor parameter is null.(Exception of JDO)

 
api-jdo

javax.jdo.spi.JDOPermission

The JDOPermission class is for operations that are reserved for JDO implementations and should not be called by other code.(Class of JDO)

 
api-jdo

javax.jdo.JDOUnsupportedOptionException

This class represents exceptions caused by the use of optional features not supported by the JDO implementation.(Exception of JDO)

 
api-jdo

javax.jdo.JDODetachedFieldAccessException

This class represents exceptions caused by access of an unloaded field while the instance is detached.(Exception of JDO)

 
forum_thread

Feedback on new site

Font size on new site is huge! This is especially a problem when browsing the api.  ... Support > Knowledge Base menu. You can use the JDO JDO Reference (JavaDoc) Java/JDO API Reference (based on the JDO 2.2 ...

 
api-jdo

javax.jdo.datastore.Sequence

Implementations of this interface can be used to obtain sequences.(Interface of JDO)

 
api-jdo

javax.jdo.annotations.Version

Annotation for the versioning of the class.(Annotation of JDO)

 
forum_thread

evictAll() behavior

I'm writing a multi-user drawing tool, using objectdb as the central store.  When a user press F5, I want to pick up all the changes from the database.  So, I call evictAll() in the following ways: pmf.getDataStoreCache().evictAll();  // the factory pm.evictAll();                                 // the persistence manager A couple of questions about this: 1. the first evictAll() seems to be clearing the L2 cache -- is this correct 2. the evicts only work when they are done inside a transaction -- is this specified in the JDO spec?... are done inside a transaction -- is this specified in the JDO spec? Cheers, Andrew ... Refreshing managed objects in JDO is a bit tricky. pmf.getDataStoreCache().evictAll() clears the ...

 
api-jdo

javax.jdo.annotations.DatastoreIdentity

Annotation for the datastore identity of the class.(Annotation of JDO)