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javax.jdo.Query

of the returned fetch plan will not cause this query's owning PersistenceManager's FetchPlan to be modified. Returns: the fetch plan used by this query Since: JDO 2.0 boolean getIgnoreCache
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addGroup(fetchGroupName)

Method javax.jdo.FetchPlan FetchPlan addGroup( String fetchGroupName ) Add the fetch group to the set of active fetch groups. Parameters: fetchGroupName - Returns: the FetchPlan Since: JDO 2.0
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getFetchPlan()

Method javax.jdo.Query FetchPlan getFetchPlan() Returns the FetchPlan used by this Query. Modifications of the returned fetch plan will not cause this query's owning PersistenceManager's FetchPlan to be modified. Returns: the fetch plan used by this query Since: JDO 2.0
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FetchGroup.members

Annotation Element javax.jdo.annotations.FetchGroup Persistent[] members Members (fields and properties) of the fetch group. The members should contain only name and recursionDepth. Returns: members for the fetch group Since: JDO 2.1
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FetchGroup.fetchGroups

Annotation Element javax.jdo.annotations.FetchGroup String[] fetchGroups Fetch groups to be nested (included) in this fetch group. Default value: {} Since: JDO 2.1
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FetchGroup.name

Annotation Element javax.jdo.annotations.FetchGroup String name Name of the fetch group. Returns: the name of the fetch group Default value: "" Since: JDO 2.1
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Query.fetchPlan

Annotation Element javax.jdo.annotations.Query String fetchPlan The name of the fetch plan used by this query Returns: the fetch plan Default value: "" Since: JDO 2.1
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detachCopy(pc)

Method javax.jdo.PersistenceManager T detachCopy( T pc ) Detach the specified instance from the PersistenceManager. The flags for detachment (DETACH_LOAD_FIELDS and DETACH_UNLOAD_FIELDS) and the active fetch groups determine the scope of fetching for the graph of instances reachable from the pc
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FetchPlans.value

Annotation Element javax.jdo.annotations.FetchPlans FetchPlan[] value The Fetch Plans Returns: The Fetch Plans Since: JDO 2.1
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setDetachAllOnCommit(flag)

, during beforeCompletion all cached instances are prepared for detachment according to the fetch plan in effect at commit. Loading fields and unloading fields required by the fetch plan is done after calling

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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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