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3

javax.persistence.OptimisticLockException

. This exception may be thrown as part of an API call, a flush or at commit time. The current transaction
3

javax.persistence.criteria.ListJoin

attribute. Note: Applications using the string-based API may need to specify the type resulting from
3

javax.persistence.criteria.Selection

Criteria API's Selection in Chapter 4 of the ObjectDB/JPA manual. Selection<X> alias(String name
3

unwrap(cls)

Method javax.persistence.EntityManager T unwrap( Class<T> cls ) Return an object of the specified type to allow access to the provider-specific API. If the provider's EntityManager implementation does not support the specified class, the PersistenceException is thrown. Parameters: cls - the class
3

javax.persistence.criteria.From

the string-based API may need to specify the type resulting from the get operation in order
3

javax.persistence.criteria.CollectionJoin

corresponding to the referenced attribute. Note: Applications using the string-based API may need to specify
0

FetchGroup.DEFAULT

Static Field javax.jdo.FetchGroup String DEFAULT For use with addCategory and removeCategory calls. This category includes members defined in the default fetch group in xml or annotations. Redefining the default fetch group via the API does not affect the members defined by this category. Using
0

makeDirty(pc, fieldName)

, and the array is modified, then the persistent instance is not aware of the change. This API allows
0

javax.jdo.JDOHelper

of the change. This API allows the application to notify the instance that a change was made to a field
0

javax.jdo.FetchGroup

the default fetch group via the API does not affect the members defined by this category. Using

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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