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Dirty checking

in the database. ie: which objects, and which collections of objects, have been dirtied ... ) so you can check if an entity object is dirty using the static dirty

Entity Management Settings

;cascade-persist always="auto" on-persist="false" on-commit="true" /> <dirty-tracking arrays ... > The ref attribute specifies the reference type for holding non dirty entities in ... (which is more efficient than double cascade) is sufficient. The <dirty-tracking> element

Locking in JPA

_INCREMENT mode affects only clean (non dirty) entity objects. Explicit lock at that mode marks the clean entity object as modified (dirty) and increases its version number by 1. mode with the addition that it marks a clean entity object as dirty and increases its version number by

Updating JPA Entity Objects

_String">makeDirty(employee, "projects"); // reported as dirty em.dirty-tracking_element">configured to detect array changes

ObjectState.PERSISTENT_NONTRANSACTIONAL_DIRTY

Enum Constant javax.jdo.ObjectStatePERSISTENT_NONTRANSACTIONAL_DIRTY

ObjectState.TRANSIENT_DIRTY

Enum Constant javax.jdo.ObjectStateTRANSIENT_DIRTY

ObjectState.PERSISTENT_DIRTY

Enum Constant javax.jdo.ObjectStatePERSISTENT_DIRTY

ObjectState.DETACHED_DIRTY

Enum Constant javax.jdo.ObjectStateDETACHED_DIRTY

InstanceLifecycleEvent.DIRTY

Static Field javax.jdo.listener.InstanceLifecycleEventint DIRTY

javax.jdo.spi.PersistenceCapable

of instances. For example, an application can discover whether the instance is persistent, transactional, dirty ... > () Tests whether this object is dirty. Tests whether this object is dirty. Instances