jodd.db.oom.dao

Class GenericDao

java.lang.Object

jodd.db.oom.dao.GenericDao

public class GenericDao
extends java.lang.Object

Generic DAO. Contains many convenient wrappers.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	keysGeneratedByDatabase

Constructor Summary

Constructors

Constructor and Description
GenericDao()

Method Summary

Modifier and Type	Method and Description
long	count(java.lang.Class entityType) Counts number of all entities.
void	decreaseProperty(java.lang.Class entityType, long id, java.lang.String name, java.lang.Number delta) Decreases a property.
void	deleteAllById(java.util.Collection objects) Deletes all objects by their id.
void	deleteById(java.lang.Class entityType, long id) Deleted single entity by its id.
void	deleteById(java.lang.Object entity) Delete single object by its id.
<E> java.util.List<E>	find(java.lang.Class<E> entityType, java.lang.Object criteria) Finds list of entities matching given criteria.
<E> java.util.List<E>	find(java.lang.Object criteria) Finds list of entities matching given criteria.
<E> E	findById(java.lang.Class<E> entityType, long id) Finds single entity by its id.
<E> E	findOne(java.lang.Object criteria) Finds one entity for given criteria.
<E> E	findOneByProperty(java.lang.Class<E> entityType, java.lang.String name, java.lang.Object value) Finds single entity by matching property.
<E> java.util.List<E>	findRelated(java.lang.Class<E> target, java.lang.Object source) Finds related entity.
protected long	generateNextId(DbEntityDescriptor ded) Generates next id for given type.
void	increaseProperty(java.lang.Class entityType, long id, java.lang.String name, java.lang.Number delta) Increases a property.
boolean	isKeysGeneratedByDatabase() Returns true if keys are auto-generated by database.
protected <E> boolean	isPersistent(DbEntityDescriptor<E> ded, E entity) Returns true if entity is persistent.
<E> java.util.List<E>	listAll(java.lang.Class<E> target) List all entities.
void	save(java.lang.Object entity) Simply inserts object into the database.
void	saveAll(java.util.Collection entities) Inserts bunch of objects into the database.
protected <E> void	setEntityId(DbEntityDescriptor<E> ded, E entity, long newValue) Sets new ID value for entity.
void	setKeysGeneratedByDatabase(boolean keysGeneratedByDatabase) Specifies how primary keys are generated.
<E> E	store(E entity) Saves or updates entity.
void	update(java.lang.Object entity) Updates single entity.
void	updateAll(java.util.Collection entities) Updates all entities.
<E> E	updateProperty(E entity, java.lang.String name) Updates property in the database by storing the current property value.
<E> E	updateProperty(E entity, java.lang.String name, java.lang.Object newValue) Updates single property in database and in the bean.

Methods inherited from class java.lang.Object

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

Field Detail

keysGeneratedByDatabase

protected boolean keysGeneratedByDatabase

Constructor Detail

GenericDao

public GenericDao()

Method Detail

isKeysGeneratedByDatabase

public boolean isKeysGeneratedByDatabase()

Returns true if keys are auto-generated by database. Otherwise, keys are generated manually.

setKeysGeneratedByDatabase

public void setKeysGeneratedByDatabase(boolean keysGeneratedByDatabase)

Specifies how primary keys are generated.

isPersistent

protected <E> boolean isPersistent(DbEntityDescriptor<E> ded,
                                   E entity)

Returns true if entity is persistent.

setEntityId

protected <E> void setEntityId(DbEntityDescriptor<E> ded,
                               E entity,
                               long newValue)

Sets new ID value for entity.

generateNextId

protected long generateNextId(DbEntityDescriptor ded)

Generates next id for given type.

store

public <E> E store(E entity)

Saves or updates entity. If ID is not null, entity will be updated. Otherwise, entity will be inserted into the database.

save

public void save(java.lang.Object entity)

Simply inserts object into the database.

saveAll

public void saveAll(java.util.Collection entities)

Inserts bunch of objects into the database.

See Also:

save(Object)

update

public void update(java.lang.Object entity)

Updates single entity.

updateAll

public void updateAll(java.util.Collection entities)

Updates all entities.

See Also:

update(Object)

updateProperty

public <E> E updateProperty(E entity,
                            java.lang.String name,
                            java.lang.Object newValue)

Updates single property in database and in the bean.

updateProperty

public <E> E updateProperty(E entity,
                            java.lang.String name)

Updates property in the database by storing the current property value.

findById

public <E> E findById(java.lang.Class<E> entityType,
                      long id)

Finds single entity by its id.

findOneByProperty

public <E> E findOneByProperty(java.lang.Class<E> entityType,
                               java.lang.String name,
                               java.lang.Object value)

Finds single entity by matching property.

findOne

public <E> E findOne(java.lang.Object criteria)

Finds one entity for given criteria.

find

public <E> java.util.List<E> find(java.lang.Object criteria)

Finds list of entities matching given criteria.

find

public <E> java.util.List<E> find(java.lang.Class<E> entityType,
                                  java.lang.Object criteria)

Finds list of entities matching given criteria.

deleteById

public void deleteById(java.lang.Class entityType,
                       long id)

Deleted single entity by its id.

deleteById

public void deleteById(java.lang.Object entity)

Delete single object by its id. Resets ID value.

deleteAllById

public void deleteAllById(java.util.Collection objects)

Deletes all objects by their id.

count

public long count(java.lang.Class entityType)

Counts number of all entities.

increaseProperty

public void increaseProperty(java.lang.Class entityType,
                             long id,
                             java.lang.String name,
                             java.lang.Number delta)

Increases a property.

decreaseProperty

public void decreaseProperty(java.lang.Class entityType,
                             long id,
                             java.lang.String name,
                             java.lang.Number delta)

Decreases a property.

findRelated

public <E> java.util.List<E> findRelated(java.lang.Class<E> target,
                                         java.lang.Object source)

Finds related entity.

listAll

public <E> java.util.List<E> listAll(java.lang.Class<E> target)

List all entities.