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4

removeUserObject(key)

Method javax.jdo.PersistenceManager Object removeUserObject( Object key ) Remove the specified key and its value from the map of user objects. Parameters: key - the key of the object to be removed Since: JDO 2.0
4

refreshAll()

Method javax.jdo.PersistenceManager void refreshAll() Refresh the state of all applicable instances from the data store. If called with an active transaction, all transactional instances will be refreshed. If called outside an active transaction, all nontransactional instances will be refreshed. Since: JDO 1.0 See Also: refresh(Object pc)
4

refreshAll(pcs)

Method javax.jdo.PersistenceManager void refreshAll( Collection pcs ) Refresh the state of a Collection of instances from the data store. Parameters: pcs - the Collection of instances to refresh. Since: JDO 1.0 See Also: refresh(Object pc)
4

removeInstanceLifecycleListener(listener)

Method javax.jdo.PersistenceManager void removeInstanceLifecycleListener( InstanceLifecycleListener listener ) Removes the listener instance from the list of lifecycle event listeners. Parameters: listener - the listener instance to be removed Since: JDO 2.0
4

refreshAll(jdoe)

Method javax.jdo.PersistenceManager void refreshAll( JDOException jdoe ) Refreshes all instances in the exception that failed verification. Parameters: jdoe - Since: JDO 2.0
4

newQuery(cln, filter)

Method javax.jdo.PersistenceManager Query newQuery( Extent cln, String filter ) Create a new Query with the candidate Extent and filter; the class is taken from the Extent. Parameters: cln - the Extent of candidate instances filter - the filter for candidate instances Returns: the new Query Since: JDO 1.0
4

newQuery(cls, cln, filter)

Method javax.jdo.PersistenceManager Query newQuery( Class cls, Collection cln, String filter ) Create a new Query with the Class of the candidate instances, candidate Collection, and filter. Parameters: cls - the Class of candidate instances cln - the Collection of candidate instances filter
4

refresh(pc)

Method javax.jdo.PersistenceManager void refresh( Object pc ) Refresh the state of the instance from the data store. In an optimistic transaction, the state of instances in the cache might not match the state in the data store. This method is used to reload the state of the instance from the data
4

putUserObject(key, val)

Method javax.jdo.PersistenceManager Object putUserObject( Object key, Object val ) Put the specified key-value pair into the map of user objects. Parameters: key - val - Since: JDO 2.0
4

newQuery(cln)

Method javax.jdo.PersistenceManager Query newQuery( Extent cln ) Create a new Query with the Class of the candidate instances and candidate Extent. Parameters: cln - the Extent of candidate instances Returns: the new Query Since: JDO 1.0

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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