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javax.persistence.criteria.Selection

. Returns: the Java type of the tuple element Since: JPA 2.0 boolean isCompoundSelection ... . Returns: boolean indicating whether the selection is a compound selection Since: JPA 2.0
3

isCorrelated()

Method javax.persistence.criteria.From boolean isCorrelated() Whether the From object has been obtained as a result of correlation (use of a Subquery correlate method). Returns: boolean indicating whether the object has been obtained through correlation Since: JPA 2.0
3

javax.persistence.criteria.CompoundSelection

element Since: JPA 2.0 boolean isCompoundSelection() Whether the selection item is a compound selection. Whether the selection item is a compound selection. Returns: boolean indicating whether the selection is a compound selection Since: JPA 2.0
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javax.persistence.EntityManagerFactory

manager factory has been closed Since: JPA 2.0 boolean isOpen() Indicates whether the factory ... : boolean indicating whether the factory is open Since: JPA 1.0
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distinct(distinct)

Method javax.persistence.criteria.AbstractQuery AbstractQuery<T> distinct( boolean distinct ) Specify whether duplicate query results will be eliminated. A true value will cause duplicates ... , duplicate results must be retained. Parameters: distinct - boolean value specifying whether duplicate
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isActive()

Method javax.persistence.EntityTransaction boolean isActive() Indicate whether a resource transaction is in progress. Returns: boolean indicating whether transaction is in progress Throws: PersistenceException - if an unexpected error condition is encountered Since: JPA 1.0
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getCopyOnAttach()

Method javax.jdo.PersistenceManager boolean getCopyOnAttach() Gets the copyOnAttach setting. Returns: the copyOnAttach setting. Since: JDO 2.1 See Also: setCopyOnAttach(boolean)
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javax.jdo.identity.ByteIdentity

ordering between the objects Since: JDO 2.2 boolean equals(Object obj) Determine if the other object ... boolean equals(Object obj) Check the class and class name and object type. Check the class and class
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getCopyOnAttach()

Method javax.jdo.PersistenceManagerFactory boolean getCopyOnAttach() Gets the default copyOnAttach setting for all PersistenceManager instances obtained from this factory. Returns: the copyOnAttach setting. Since: JDO 2.1 See Also: setCopyOnAttach(boolean)
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javax.jdo.identity.IntIdentity

Since: JDO 2.2 boolean equals(Object obj) Determine if the other object represents the same object id ... Returns: true if both objects represent the same object id Since: JDO 1.0 boolean equals(Object obj

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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