Fast Object Database for Java - with JPA/JDO support

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javax.jdo.identity.CharIdentity

javax.jdo.identity Class CharIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity ... , Comparable This class is for identity with a single character field. Since: JDO 1.0 CharIdentity() Constructor only for Externalizable. Constructor only for Externalizable. Since: JDO 1.0 CharIdentity(Class
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javax.jdo.identity.ShortIdentity

javax.jdo.identity Class ShortIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity ... , Comparable This class is for identity with a single short field. Since: JDO 1.0 ShortIdentity() Constructor only for Externalizable. Constructor only for Externalizable. Since: JDO 1.0 ShortIdentity(Class
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javax.jdo.identity.ObjectIdentity

javax.jdo.identity Class ObjectIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity ... , Comparable This class is for identity with a single Object type field. Since: JDO 1.0 ObjectIdentity ... ObjectIdentity(Class pcClass, Object param) Constructor with class and key. Constructor with class and key
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javax.jdo.identity.SingleFieldIdentity

javax.jdo.identity Class SingleFieldIdentity java.lang.Object javax.jdo.identity ... , CharIdentity, IntIdentity, LongIdentity, ObjectIdentity, ShortIdentity, StringIdentity This class is the abstract base class for all single field identity classes. A common case of application identity
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javax.jdo.spi.RegisterClassEvent

javax.jdo.spi Class RegisterClassEvent java.lang.Object java.util.EventObject javax.jdo ... delivered whenever a persistence-capable class registers itself with the JDOImplHelper. Since: JDO 1.0 RegisterClassEvent( JDOImplHelper helper, Class registeredClass, String[] fieldNames, Class
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javax.jdo.identity.StringIdentity

javax.jdo.identity Class StringIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity ... , Comparable This class is for identity with a single String field. Since: JDO 1.0 StringIdentity ... (Class pcClass, String key) Constructor with class and key. Constructor with class and key
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javax.jdo.spi.I18NHelper

javax.jdo.spi Class I18NHelper java.lang.Object javax.jdo.spi.I18NHelper Helper class for constructing messages from bundles. The intended usage of this class is to construct a new instance ... the class loader that loaded the I18NHelper class to find the specified Bundle. The class provides
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javax.jdo.datastore.DataStoreCache.EmptyDataStoreCache

javax.jdo.datastore Class DataStoreCache.EmptyDataStoreCache java.lang.Object javax.jdo.datastore.DataStoreCache.EmptyDataStoreCache Implemented Interfaces: DataStoreCache This class is an empty ... evictAll(Class pcClass, boolean subclasses) Evict the parameter instances from the second-level
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java.lang.Throwable

java.lang Class Throwable java.lang.Object java.lang.Throwable Implemented Interfaces: Serializable Subclasses: Exception The Throwable class is the superclass of all errors and exceptions in the Java language. Only objects that are instances of this class (or one of its subclasses) are thrown
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addInstanceLifecycleListener(listener, classes)

listener, Class... classes ) Adds the listener instance to the list of lifecycle event listeners. The classes parameter identifies all of the classes of interest. If the classes parameter is specified as null, events for all persistent classes and interfaces will be sent to listenerInstance

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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