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JPA Doc
1

alias(name)

Method javax.persistence.criteria.Selection Selection alias(   String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Parameters: name - alias Returns: selection item Since: JPA 2.0
JPA Doc
1

as(type)

Method javax.persistence.criteria.Expression Expression as(   Class type ) Perform a typecast upon the expression, returning a new expression object. This method does not cause type conversion: the runtime type is not changed. Warning: may result in a runtime failure. Parameters: type
JPA Doc
1

clear()

Method javax.persistence.EntityManager void clear() Clear the persistence context, causing all managed entities to become detached. Changes made to entities that have not been flushed to the database will not be persisted. Since: JPA 1.0
JPA Doc
1

coalesce()

cannot be changed or reassigned. Returns the same selection item. Parameters: name - alias Returns: selection item
JPA Doc
1

commit()

Method javax.persistence.EntityTransaction void commit() Commit the current resource transaction, writing any unflushed changes to the database. Throws: IllegalStateException - if isActive() is false RollbackException - if the commit fails Since: JPA 1.0
JDO Doc
1

deletePersistentAll()

the cache as a result of executing one of the deletePersistentAll methods undergo life cycle changes as
JPA Doc
1

detach(entity)

Method javax.persistence.EntityManager void detach(   Object entity ) Remove the given entity from the persistence context, causing a managed entity to become detached. Unflushed changes made to the entity if any (including removal of the entity), will not be synchronized to the database. Entities
Forum
1

evictAll() behavior

, I want to pick up all the changes from the database.  So, I call evictAll() in the following ways ... (L1) cache. But evictAll does not affect objects that have been changed by the current PersistenceManager - it is useful only to see changes that have been committed by other persistence managers
JDO Doc
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getObjectId(pc)

Method javax.jdo.spi.StateManager Object getObjectId(   PersistenceCapable pc ) Return the object representing the JDO identity of the calling instance. If the JDO identity is being changed in the current transaction, this method returns the identity as of the beginning of the transaction
Issue
1

Internal Exception and Index Problems

". Try to change the userName attribute of this entry then the following error occurs: Unexpected ... it to another super/sub class), and due to any inheritance change (such as adding, removing or changing the super class). You can avoid this issue by restarting the ObjectDB server after every such schema change