org.flowable.engine.common.impl.db

Class AbstractDataManager<EntityImpl extends Entity>

java.lang.Object

org.flowable.engine.common.impl.db.AbstractDataManager<EntityImpl>

All Implemented Interfaces:

DataManager<EntityImpl>

public abstract class AbstractDataManager<EntityImpl extends Entity>
extends Object
implements DataManager<EntityImpl>

Author:

Joram Barrez, Tijs Rademakers

Constructor Summary

Constructors

Constructor and Description
AbstractDataManager()

Method Summary

Modifier and Type	Method and Description
void	delete(EntityImpl entity)
void	delete(String id)
EntityImpl	findById(String entityId)
protected EntityImpl	findByQuery(String selectQuery, Object parameter)
protected CommandContext	getCommandContext()
protected DbSqlSession	getDbSqlSession()
protected EntityImpl	getEntity(String selectQuery, Object parameter, SingleCachedEntityMatcher<EntityImpl> cachedEntityMatcher, boolean checkDatabase)
protected EntityCache	getEntityCache()
protected List<EntityImpl>	getList(String dbQueryName, Object parameter)
protected List<EntityImpl>	getList(String dbQueryName, Object parameter, CachedEntityMatcher<EntityImpl> cachedEntityMatcher)
protected List<EntityImpl>	getList(String dbQueryName, Object parameter, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, boolean checkCache) Gets a list by querying the database and the cache using CachedEntityMatcher.
protected List<EntityImpl>	getListFromCache(CachedEntityMatcher<EntityImpl> entityMatcher, Object parameter)
abstract Class<? extends EntityImpl>	getManagedEntityClass()
List<Class<? extends EntityImpl>>	getManagedEntitySubClasses()
protected <T> T	getSession(Class<T> sessionClass)
void	insert(EntityImpl entity)
EntityImpl	update(EntityImpl entity)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.flowable.engine.common.impl.persistence.entity.data.DataManager

create

Constructor Detail

AbstractDataManager

public AbstractDataManager()

Method Detail

getManagedEntityClass

public abstract Class<? extends EntityImpl> getManagedEntityClass()

getManagedEntitySubClasses

public List<Class<? extends EntityImpl>> getManagedEntitySubClasses()

getCommandContext

protected CommandContext getCommandContext()

getSession

protected <T> T getSession(Class<T> sessionClass)

getDbSqlSession

protected DbSqlSession getDbSqlSession()

getEntityCache

protected EntityCache getEntityCache()

findById

public EntityImpl findById(String entityId)

Specified by:

findById in interface DataManager<EntityImpl extends Entity>

insert

public void insert(EntityImpl entity)

Specified by:

insert in interface DataManager<EntityImpl extends Entity>

update

public EntityImpl update(EntityImpl entity)

Specified by:

update in interface DataManager<EntityImpl extends Entity>

delete

public void delete(String id)

Specified by:

delete in interface DataManager<EntityImpl extends Entity>

delete

public void delete(EntityImpl entity)

Specified by:

delete in interface DataManager<EntityImpl extends Entity>

findByQuery

protected EntityImpl findByQuery(String selectQuery,
                                 Object parameter)

getList

protected List<EntityImpl> getList(String dbQueryName,
                                   Object parameter)

getEntity

protected EntityImpl getEntity(String selectQuery,
                               Object parameter,
                               SingleCachedEntityMatcher<EntityImpl> cachedEntityMatcher,
                               boolean checkDatabase)

getList

protected List<EntityImpl> getList(String dbQueryName,
                                   Object parameter,
                                   CachedEntityMatcher<EntityImpl> cachedEntityMatcher)

getList

protected List<EntityImpl> getList(String dbQueryName,
                                   Object parameter,
                                   CachedEntityMatcher<EntityImpl> cachedEntityMatcher,
                                   boolean checkCache)

Gets a list by querying the database and the cache using CachedEntityMatcher. First, the entities are fetched from the database using the provided query. The cache is then queried for the entities of the same type. If an entity matches the CachedEntityMatcher condition, it replaces the entity from the database (as it is newer).

Parameters:

dbQueryName - The query name that needs to be executed.

parameter - The parameters for the query.

cachedEntityMatcher - The matcher used to determine which entities from the cache needs to be retained

checkCache - If false, no cache check will be done, and the returned list will simply be the list from the database.

getListFromCache

protected List<EntityImpl> getListFromCache(CachedEntityMatcher<EntityImpl> entityMatcher,
                                            Object parameter)