Package org.flowable.common.engine.impl.db

Class AbstractDataManager<EntityImpl extends Entity>

java.lang.Object

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

All Implemented Interfaces:

DataManager<EntityImpl>

Direct Known Subclasses:

MybatisByteArrayDataManager, MybatisPropertyDataManager

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

Author:

Joram Barrez, Tijs Rademakers

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_ENTRIES_IN_CLAUSE

Constructor Summary

Constructors

Constructor	Description
AbstractDataManager()

Method Summary

Modifier and Type	Method	Description
void	bulkDelete(String statement, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, Object parameter)	Does a bulk delete, but also uses the provided CachedEntityMatcher to look in the cache to mark the cached entities as deleted.
protected void	bulkDeleteEntities(String statement, List<EntityImpl> entities)
protected void	bulkUpdateEntities(String statement, Map<String,Object> parameters, String collectionNameInSqlStatement, List<EntityImpl> entities)
protected List<List<String>>	createSafeInValuesList(Collection<String> values)
void	delete(EntityImpl entity)
void	delete(String id)
protected void	deleteCachedEntities(DbSqlSession dbSqlSession, Collection<CachedEntity> cachedObjects, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, Object parameter)
protected void	deleteCachedEntities(DbSqlSession dbSqlSession, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, Object parameter)
protected void	executeChangeWithInClause(List<EntityImpl> entities, Consumer<List<EntityImpl>> consumer)
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 abstract IdGenerator	getIdGenerator()
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>	getList(DbSqlSession dbSqlSession, String dbQueryName, Object parameter, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, boolean checkCache)
protected List<EntityImpl>	getList(DbSqlSession dbSqlSession, String dbQueryName, Object parameter, CachedEntityMatcher<EntityImpl> cachedEntityMatcher, boolean checkCache, boolean includeDeleted)
protected List<EntityImpl>	getListFromCache(CachedEntityMatcher<EntityImpl> entityMatcher, Object parameter)
protected List<EntityImpl>	getListFromCache(CachedEntityMatcher<EntityImpl> entityMatcher, Object parameter, boolean includeDeletedEntities)
abstract Class<? extends EntityImpl>	getManagedEntityClass()
List<Class<? extends EntityImpl>>	getManagedEntitySubClasses()
protected <T> T	getSession(Class<T> sessionClass)
void	insert(EntityImpl entity)
protected boolean	isEntityInserted(DbSqlSession dbSqlSession, String entityLogicalName, String entityId)
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.common.engine.impl.persistence.entity.data.DataManager

create

Field Details

MAX_ENTRIES_IN_CLAUSE

public static final int MAX_ENTRIES_IN_CLAUSE

See Also:

• Constant Field Values

Constructor Details

AbstractDataManager

public AbstractDataManager()

Method Details

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.

getList

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

getList

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

getListFromCache

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

getListFromCache

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

bulkDelete

public void bulkDelete(String statement,
 CachedEntityMatcher<EntityImpl> cachedEntityMatcher,
 Object parameter)

Does a bulk delete, but also uses the provided CachedEntityMatcher to look in the cache to mark the cached entities as deleted. (This is necessary if entities are inserted and deleted in the same operation).

deleteCachedEntities

protected void deleteCachedEntities(DbSqlSession dbSqlSession,
 CachedEntityMatcher<EntityImpl> cachedEntityMatcher,
 Object parameter)

deleteCachedEntities

protected void deleteCachedEntities(DbSqlSession dbSqlSession,
 Collection<CachedEntity> cachedObjects,
 CachedEntityMatcher<EntityImpl> cachedEntityMatcher,
 Object parameter)

createSafeInValuesList

protected List<List<String>> createSafeInValuesList(Collection<String> values)

executeChangeWithInClause

protected void executeChangeWithInClause(List<EntityImpl> entities,
 Consumer<List<EntityImpl>> consumer)

bulkDeleteEntities

protected void bulkDeleteEntities(String statement,
 List<EntityImpl> entities)

bulkUpdateEntities

protected void bulkUpdateEntities(String statement,
 Map<String,Object> parameters,
 String collectionNameInSqlStatement,
 List<EntityImpl> entities)

isEntityInserted

protected boolean isEntityInserted(DbSqlSession dbSqlSession,
 String entityLogicalName,
 String entityId)

getIdGenerator

protected abstract IdGenerator getIdGenerator()