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Shared (L2) Entity Cache

cache. An attempt to retrieve an entity object that is already managed by the EntityManager ... /EntityManager">EntityManager. This section describes a level 2  (L2) cache ... of this cache makes it useful in applications that use many short term EntityManager


Interface Cache Interface used to interact with the second-level cache. If a cache is not in use, the methods ... > Learn how to use Cache in

contains(cls, primaryKey)

Cache" title="Interface in javax.persistence">javax.persistence.Cacheboolean contains(  Class cls,   Object primaryKey) Whether the cache

evict(cls, primaryKey)

Cache" title="Interface in javax.persistence">javax.persistence.Cachevoid evict(  Class cls,   Object ... entity from the cache. Parameters:


Cache" title="Interface in javax.persistence">javax.persistence.Cachevoid evictAll() Clear the cache. Since: JPA 2.0


Cache" title="Interface in javax.persistence">javax.persistence.Cachevoid evict(  Class cls) cache. Parameters:

Database Management Settings

="false" path="." mode="write" /> <locking version-check="true" /> <processing cache ... " priority="40" /> <query-cache results="32mb" programs="500" /> <extensions drop="temp ... <processing cache="64mb" max-threads="10" />


">javax.jdo.ConstantsString PMF_ATTRIBUTE_IGNORE_CACHE The name of the persistence manager factory element's "ignore-cache" attribute.


Static Field javax.jdo.ConstantsString PROPERTY_IGNORE_CACHE "javax.jdo.option

[ODB1] Chapter 6 - Persistent Objects

, and to keep them as simple as possible. The Persistent Object Cache As noted before ... representing that database object. Every PersistenceManager instance manages a cache of persistent objects that are in use by the application. If the cache already contains a persistent