293 | Shared (L2) Entity Cache that it manages. The persistence context serves as a first level cache. An attempt to retrieve ... is one EntityManager. This section describes a level 2 (L2) cache of entity objects, which is managed ... of this cache makes it useful in applications that use many short term EntityManager instances. In addition |
73 | javax.persistence.Cachejavax.persistence Interface Cache Interface used to interact with the second-level cache. If a cache is not in use, the methods of this interface have no effect, except for contains, which returns false. Since: JPA 2.0 Learn how to use Cache in Chapter 3 of the ObjectDB/JPA manual. boolean contains |
68 | contains(cls, primaryKey)Method javax.persistence.Cache boolean contains( Class cls, Object primaryKey ) Whether the cache contains data for the given entity. Parameters: cls - entity class primaryKey - primary key Returns: boolean indicating whether the entity is in the cache Since: JPA 2.0 |
67 | evict(cls, primaryKey)Method javax.persistence.Cache void evict( Class cls, Object primaryKey ) Remove the data for the given entity from the cache. Parameters: cls - entity class primaryKey - primary key Since: JPA 2.0 |
67 | evictAll()Method javax.persistence.Cache void evictAll() Clear the cache. Since: JPA 2.0 |
67 | evict(cls)Method javax.persistence.Cache void evict( Class cls ) Remove the data for entities of the specified class (and its subclasses) from the cache. Parameters: cls - entity class Since: JPA 2.0 |
39 | Database Management Settings="." mode="write" /> <locking version-check="true" /> <processing cache="64mb" max-threads="10" synchronized="false" /> <index-update enabled="true" priority="40" /> <query-cache results ... . The <processing> element <processing cache="64mb" max-threads="10" /> The <processing> element |
6 | Constants.PMF_ATTRIBUTE_IGNORE_CACHEStatic Field javax.jdo.Constants String PMF_ATTRIBUTE_IGNORE_CACHE The name of the persistence manager factory element's "ignore-cache" attribute. Since: JDO 2.1 |
6 | Constants.PROPERTY_IGNORE_CACHEStatic Field javax.jdo.Constants String PROPERTY_IGNORE_CACHE "javax.jdo.option.IgnoreCache" Since: JDO 2.1 See Also: PersistenceManagerFactory.getIgnoreCache() |
3 | [ODB1] Chapter 6 - Persistent Objects Cache As noted before, persistent objects are memory objects that represent some content in the database ... a cache of persistent objects that are in use by the application. If the cache already contains ... is not found in the cache, a new object is constructed, filled with the content of the database |
