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IntIdentity(pcClass, key)

Constructor javax.jdo.identity.IntIdentity IntIdentity( Class pcClass, int key ) Constructor with class and key. Parameters: pcClass - the class key - the key Since: JDO 1.0
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ShortIdentity(pcClass, key)

Constructor javax.jdo.identity.ShortIdentity ShortIdentity( Class pcClass, Short key ) Constructor with class and key. Parameters: pcClass - the class key - the key Since: JDO 1.0
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getUserObject(key)

Method javax.jdo.PersistenceManager Object getUserObject( Object key ) Get the value for the specified key from the map of user objects. Parameters: key - the key of the object to be returned Returns: the object Since: JDO 2.0
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CharIdentity(pcClass, key)

Constructor javax.jdo.identity.CharIdentity CharIdentity( Class pcClass, Character key ) Constructor with class and key. Parameters: pcClass - the target class key - the key Since: JDO 1.0
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CharIdentity(pcClass, key)

Constructor javax.jdo.identity.CharIdentity CharIdentity( Class pcClass, char key ) Constructor with class and key. Parameters: pcClass - the target class key - the key Since: JDO 1.0
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getObjectById(cls, key)

Method javax.jdo.PersistenceManager T getObjectById( Class<T> cls, Object key ) Looks up the instance of the given type with the given key. Parameters: cls - The type of object to load key ... key Returns: the corresponding persistent instance Since: JDO 2.0
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LongIdentity(pcClass, key)

Constructor javax.jdo.identity.LongIdentity LongIdentity( Class pcClass, Long key ) Constructor with class and key. Parameters: pcClass - the class key - the key Since: JDO 1.0
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removeUserObject(key)

Method javax.jdo.PersistenceManager Object removeUserObject( Object key ) Remove the specified key and its value from the map of user objects. Parameters: key - the key of the object to be removed Since: JDO 2.0
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Extension.key

Annotation Element javax.jdo.annotations.Extension String key The key for the extension (required). Returns: the key Since: JDO 2.1
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Key.embeddedMapping

Annotation Element javax.jdo.annotations.Key Embedded[] embeddedMapping The embedded mapping for the key. Returns: the embedded mapping for the key Default value: {} 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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