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javax.persistence.spi.ProviderUtil

a different provider. Parameters: entity - whose loaded status is to be determined Returns: load status ... will have already been determined by isLoadedWithoutReference. ) Parameters: entity - entity instance ... the loading of entity state if the entity has been provided by a different provider. Parameters: entity
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isNew(pc)

Static Method javax.jdo.JDOHelper boolean isNew( Object pc ) Tests whether the parameter instance has been newly made persistent. Instances that have been made persistent in the current transaction ... return false. Parameters: pc - the PersistenceCapable instance. Returns: true if the parameter
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isDirty(pc)

Static Method javax.jdo.JDOHelper boolean isDirty( Object pc ) Tests whether the parameter instance is dirty. Instances that have been modified, deleted, or newly made persistent in the current ... PersistenceCapable return false. Parameters: pc - the PersistenceCapable instance. Returns: true if the parameter
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detachCopyAll(pcs)

the pcs parameter. The state of fields in the affected instances is as specified by the FetchPlan ... []). The detached instances will be unmanaged copies of the specified parameters, and are suitable for serialization ... instances must either be in the default-fetch-group, or in the current custom FetchPlan. Parameters: pcs
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setFilter(filter)

are valid. Equality and ordering comparisons of Date fields and Date parameters are valid. White ... , with the addition of declared imports, parameters and variables. As in the Java language ... implementation is allowed to reorder the filter expression for optimization purposes. Parameters: filter - the query filter. Since: JDO 1.0
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isDeleted(pc)

Static Method javax.jdo.JDOHelper boolean isDeleted( Object pc ) Tests whether the parameter instance has been deleted. Instances that have been deleted in the current transaction return true ... . Parameters: pc - the PersistenceCapable instance. Returns: true if the parameter instance was deleted in
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jdoReplaceStateManager(sm)

already owned by a StateManager. If the parameter is null, and the StateManager approves the change, then the jdoFlags field will be reset to READ_WRITE_OK. If the parameter is not null, and the security manager approves the change, then the jdoFlags field will be reset to LOAD_REQUIRED. Parameters: sm
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construct(className, keyString)

) Construct an instance of the parameter class, using the keyString as an argument to the constructor ... for the class with a single String argument. Otherwise, throw a JDOUserException. Parameters: className - the name of the class keyString - the String parameter for the constructor Returns: the result of construction Since: JDO 1.0
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addInstanceLifecycleListener(listener, classes)

. The classes parameter identifies all of the classes of interest. If the classes parameter is specified ... interface. Parameters: listener - the lifecycle listener classes - the classes of interest to the listener Since: JDO 2.0
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getTransactionalObjectId(pc)

Static Method javax.jdo.JDOHelper Object getTransactionalObjectId( Object pc ) Return a copy of the JDO identity associated with the parameter instance. Parameters: pc - the PersistenceCapable instance. Returns: a copy of the ObjectId of the parameter instance as modified in this transaction

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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