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Method java.security.Permission boolean equals( Object arg0 ) Parameters: arg0 -


Method javax.jdo.PersistenceManager boolean getIgnoreCache() Get the ignoreCache setting for queries. IgnoreCache set to true specifies that for all Query instances created by this PersistenceManager, the default is the cache should be ignored for queries. Returns: the ignoreCache setting. Since: JDO 1.0


, boolean value) Store one field into the field manager. Store one field into the field manager


Method javax.jdo.FetchGroup FetchGroup setPostLoad( boolean postLoad ) Set the post-load property of this FetchGroup. Parameters: postLoad - Returns: the FetchGroup Throws: JDOUserException - if the FetchGroup is unmodifiable Since: JDO 2.2


Static Method javax.jdo.JDOHelper boolean isTransactional( Object pc ) Tests whether the parameter instance is transactional. Instances whose state is associated with the current transaction return true. Transient instances and instances of classes that do not implement PersistenceCapable return

getExtent(persistenceCapableClass, subclasses)

Method javax.jdo.PersistenceManager Extent<T> getExtent( Class<T> persistenceCapableClass, boolean subclasses ) The PersistenceManager manages a collection of instances in the data store based on the class of the instances. This method returns an Extent of instances in the data store


Method javax.jdo.spi.PersistenceCapable boolean jdoIsDetached() Tests whether this object has been detached. Instances that have been detached return true. Transient instances return false. Returns: true if this instance is detached. Since: JDO 2.0 See Also: javax.jdo.JDOHelper.isDetached(Object pc)


Method javax.jdo.spi.StateManager boolean isDeleted( PersistenceCapable pc ) Tests whether this object has been deleted. Instances that have been deleted in the current transaction return true. Transient instances return false. Parameters: pc - the calling PersistenceCapable instance Returns: true


Method javax.jdo.PersistenceManagerFactory void setRetainValues( boolean flag ) Set the default RetainValues setting for all PersistenceManager instances obtained from this factory. Parameters: flag - the default RetainValues setting. Since: JDO 1.0

pinAll(subclasses, pcClass)

Method javax.jdo.datastore.DataStoreCache void pinAll( boolean subclasses, Class pcClass ) Pin instances in the second-level cache. Parameters: subclasses - if true, pin instances of subclasses also pcClass - the class of instances to pin Since: JDO 2.1

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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