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javax.persistence.criteria.Expression

- expressions to be tested against Returns: predicate testing for membership Since: JPA 2.0 boolean ... is a compound selection. Returns: boolean indicating whether the selection is a compound selection
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isVersion()

Method javax.persistence.metamodel.SingularAttribute boolean isVersion() Is the attribute a version attribute. Returns: boolean indicating whether the attribute is a version attribute Since: JPA 2.0
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isOptional()

Method javax.persistence.metamodel.SingularAttribute boolean isOptional() Can the attribute be null. Returns: boolean indicating whether the attribute can be null Since: JPA 2.0
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contains(cls, primaryKey)

Method javax.persistence.Cache boolean contains( Class cls, Object primaryKey ) Whether the cache contains data for the given entity. Parameters: cls - entity class primaryKey - primary key Returns: boolean indicating whether the entity is in the cache Since: JPA 2.0
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isOpen()

Method javax.persistence.EntityManagerFactory boolean isOpen() Indicates whether the factory is open. Returns true until the factory has been closed. Returns: boolean indicating whether the factory is open Since: JPA 1.0
0

getBooleanField(pc, field, currentValue)

Method javax.jdo.spi.StateManager boolean getBooleanField( PersistenceCapable pc, int field, boolean currentValue ) Return the value for the field. Parameters: pc - the calling PersistenceCapable instance field - the field number currentValue - the current value of the field Returns: the new value for the field Since: JDO 1.0
0

getObjectsById(validate, oids)

Method javax.jdo.PersistenceManager Object[] getObjectsById( boolean validate, Object... oids ) Return the objects with the given oids. Parameters: validate - if true, the existance of the objects in ... that were looked up, in the same order as the oids parameter. Since: JDO 2.1 See Also: getObjectById(Object,boolean)
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makeTransientAll(pcs, useFetchPlan)

Method javax.jdo.PersistenceManager void makeTransientAll( Object[] pcs, boolean useFetchPlan ) Make instances transient, removing them from management by this PersistenceManager. If the useFetchPlan ... to determine which fields to load and which instances to make transient Since: JDO 2.0 See Also: makeTransientAll(boolean,Object...)
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getObjectsById(oids)

Method javax.jdo.PersistenceManager Object[] getObjectsById( Object... oids ) Return the objects with the given oids. This method is equivalent to calling getObjectsById(boolean,Object ... that were looked up, in the same order as the oids parameter. Since: JDO 2.0 See Also: getObjectsById(boolean,Object...)
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javax.jdo.spi.JDOImplHelper.StateInterrogationBooleanReturn

javax.jdo.spi Interface JDOImplHelper.StateInterrogationBooleanReturn This is an interface used to interrogate the state of an instance that does not implement PersistenceCapable. It is used for the methods that return a boolean value. Since: JDO 1.0 Boolean is(Object pc, StateInterrogation si

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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