Fast Object Database for Java - with JPA/JDO support

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13

getNativeConnection()

Methodjavax.jdo.datastore.JDOConnection Object getNativeConnection() Returns the native, datastore ... connection be used directly, since the JDO implementation has no way to intercept calls to it, so it is quite possible to put the PersistenceManager's connection into an invalid state. Returns: the native connection Since: JDO 2.0
13

Join.deleteAction

Annotation Element javax.jdo.annotations.Join ForeignKeyAction deleteAction Delete action to be applied to any ForeignKey on this join. Returns: the delete action Default value: javax.jdo.annotations.ForeignKeyAction.UNSPECIFIED Since: JDO 2.1
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Constants.OPTION_UNCONSTRAINED_QUERY_VARIABLES

Static Field javax.jdo.Constants String OPTION_UNCONSTRAINED_QUERY_VARIABLES "javax.jdo.option.UnconstrainedQueryVariables" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()
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makeTransient(pc)

Method javax.jdo.PersistenceManager void makeTransient( Object pc ) Make an instance transient, removing it from management by this PersistenceManager. The instance loses its JDO identity ... . Parameters: pc - the instance to make transient. Since: JDO 1.0
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jdoIsNew()

Method javax.jdo.spi.PersistenceCapable boolean jdoIsNew() Tests whether this object has been newly made persistent. Instances that have been made persistent in the current transaction return true ... transaction. Since: JDO 1.0 See Also: javax.jdo.JDOHelper.isNew(Object pc) PersistenceManager.makePersistent(Object pc)
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Constants.PROPERTY_MAPPING

Static Field javax.jdo.Constants String PROPERTY_MAPPING "javax.jdo.option.Mapping" Since: JDO 2.1 See Also: PersistenceManagerFactory.getMapping()
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setTransactionIsolationLevel(level)

Method javax.jdo.PersistenceManagerFactory void setTransactionIsolationLevel( String level ) Set ... javax.jdo.Constants. If the requested level is not available, but a higher level is available ... - the transaction isolation level Since: JDO 2.2 See Also: getTransactionIsolationLevel() Constants.TX_READ
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jdoPreStore()

Method javax.jdo.listener.StoreCallback void jdoPreStore() Called before the values are stored from this instance to the data store. Data store fields that might have been affected by modified non ... which this call is made allows access to the PersistenceManager and other persistent JDO instances. Since: JDO 2.0
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Constants.PROPERTY_TRANSACTION_ISOLATION_LEVEL_SERIALIZABLE

Static Field javax.jdo.Constants String PROPERTY_TRANSACTION_ISOLATION_LEVEL_SERIALIZABLE "javax.jdo.option.TransactionIsolationLevel.serializable" Since: JDO 2.2 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.OPTION_DATASTORE_IDENTITY

Static Field javax.jdo.Constants String OPTION_DATASTORE_IDENTITY "javax.jdo.option.DatastoreIdentity" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()

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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