org.hibernate.envers.internal.reader

Class FirstLevelCache

java.lang.Object

org.hibernate.envers.internal.reader.FirstLevelCache

public class FirstLevelCache
extends Object

First level cache for versioned entities, versions reader-scoped. Each entity is uniquely identified by a revision number and entity id.

Author:

Adam Warski (adam at warski dot org), Hernán Chanfreau

Constructor Summary

Constructors

Constructor and Description
FirstLevelCache()

Method Summary

Modifier and Type	Method and Description
boolean	contains(String entityName, Number revision, Object id)
boolean	containsEntityName(Object id, Number revision, Object entity)
Object	get(String entityName, Number revision, Object id)
String	getFromEntityNameCache(Object id, Number revision, Object entity) Gets the entityName from the cache.
void	put(String entityName, Number revision, Object id, Object entity)
void	putOnEntityNameCache(Object id, Number revision, Object entity, String entityName) Adds the entityName into the cache.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FirstLevelCache

public FirstLevelCache()

Method Detail

get

public Object get(String entityName,
                  Number revision,
                  Object id)

put

public void put(String entityName,
                Number revision,
                Object id,
                Object entity)

contains

public boolean contains(String entityName,
                        Number revision,
                        Object id)

putOnEntityNameCache

public void putOnEntityNameCache(Object id,
                                 Number revision,
                                 Object entity,
                                 String entityName)

Adds the entityName into the cache. The key is a triple make with primaryKey, revision and entity

Parameters:

id - primaryKey

revision - revision number

entity - object retrieved by envers

entityName - value of the cache

getFromEntityNameCache

public String getFromEntityNameCache(Object id,
                                     Number revision,
                                     Object entity)

Gets the entityName from the cache. The key is a triple make with primaryKey, revision and entity

Parameters:

id - primaryKey

revision - revision number

entity - object retrieved by envers

Returns:

The appropriate entity name

containsEntityName

public boolean containsEntityName(Object id,
                                  Number revision,
                                  Object entity)

Parameters:

id - primaryKey

revision - revision number

entity - object retrieved by envers

Returns:

true if entityNameCache contains the triple