AbstractRepository (data-api 6.0.0 API)

java.lang.Object
- de.alpharogroup.db.repository.AbstractRepository<T,PK>

Type Parameters:

T - the generic type of the domain entity

PK - the generic type of the primary key from the domain entity

All Implemented Interfaces:

GenericRepository<T,PK>, Serializable
```
public abstract class AbstractRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
extends Object
implements GenericRepository<T,PK>
```
The abstract class AbstractRepository provides methods for database operations like insert, delete, update and selections. The create, update and delete processes can be overwritten by providing strategies for them. By default the strategies are null and the default behavior of the process will be taken.

Author:

Asterios Raptis

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

AbstractRepository()

Constructors
Constructor and Description
`AbstractRepository()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`create(T entity)` Persists the given entity.
`javax.persistence.TypedQuery<T>`	`createNamedQuery(String name, Class<T> resultClass)` Factory method for create a new `TypedQuery` from the given name and the given type.
`javax.persistence.TypedQuery<T>`	`createNamedTypedQuery(String name)` Factory method for create a new `TypedQuery` from the given name and the type of the generic entity.
`void`	`delete(List<T> entities)` Delete all persistent entities in the given list.
`void`	`delete(PK id)` Deletes an entity of a given Id.
`void`	`delete(T entity)` Deletes the given entity from persistent storage in the database.
`void`	`evict(T entity)` Remove this instance from the session cache.
`boolean`	`exists(PK id)` Checks if an entry exists with the given id.
`List<T>`	`findAll()` Returns a list of all persistent entities.
`T`	`get(PK id)` Retrieve a persisted entity with a given id from the database.
`javax.persistence.Query`	`getQuery(String hqlQuery)` Gets a `Query` from the given hql query.
`T`	`load(PK id)` Retrieve a persisted entity with a given id from the database.
`List<T>`	`merge(List<T> entities)` Merges all new entities in the given list.
`T`	`merge(T entity)` Merges the given entity.
`DeleteStrategy<T,PK>`	`newDeleteStrategy()` Factory method for creating a new `DeleteStrategy` for interact on deletion process.
`MergeStrategy<T,PK>`	`newMergeStrategy()` Factory method for creating a new `MergeStrategy` for interact on merge process.
`SaveOrUpdateStrategy<T,PK>`	`newSaveOrUpdateStrategy()` Factory method for creating a new `SaveOrUpdateStrategy` for interact on save or update process.
`void`	`refresh(T entity)` Re-read the state of the given instance from the underlying database.
`List<PK>`	`save(List<T> entities)` Save all new entities in the given list.
`PK`	`save(T entity)` Persist the given entity into database.
`void`	`saveOrUpdate(List<T> entities)` Save or update all transient entities in the given list.
`void`	`saveOrUpdate(T entity)` Save or update the given persistent entity.
`void`	`update(List<T> entities)` Update all transient entities in the given list.
`void`	`update(T entity)` Update changes made to the given entity.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.alpharogroup.db.repository.api.GenericRepository
getEntityManager, getType, setEntityManager

- Constructor Detail
  - AbstractRepository
```
public AbstractRepository()
```
- Method Detail
  - create
```
public void create(T entity)
```
    Persists the given entity.
    
    Specified by:
    
    create in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the entity
  - createNamedQuery
```
public javax.persistence.TypedQuery<T> createNamedQuery(String name,
                                                        Class<T> resultClass)
```
    Factory method for create a new TypedQuery from the given name and the given type.
    
    Specified by:
    
    createNamedQuery in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    name - the name
    
    resultClass - the result class
    
    Returns:
    
    the new TypedQuery
  - createNamedTypedQuery
```
public javax.persistence.TypedQuery<T> createNamedTypedQuery(String name)
```
    Factory method for create a new TypedQuery from the given name and the type of the generic entity.
    
    Specified by:
    
    createNamedTypedQuery in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    name - the name
    
    Returns:
    
    the new TypedQuery
  - delete
```
public void delete(List<T> entities)
```
    Delete all persistent entities in the given list.
    
    Specified by:
    
    delete in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entities - the list with the persistent entities to delete
  - delete
```
public void delete(PK id)
```
    Deletes an entity of a given Id. Will load the entity internally so consider using delete (T obj) directly
    
    Specified by:
    
    delete in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    id - the id
  - delete
```
public void delete(T entity)
```
    Deletes the given entity from persistent storage in the database.
    
    Specified by:
    
    delete in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the persistent entity
  - evict
```
public void evict(T entity)
```
    Remove this instance from the session cache.
    
    Specified by:
    
    evict in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the entity to evict.
  - exists
```
public boolean exists(PK id)
```
    Checks if an entry exists with the given id.
    
    Specified by:
    
    exists in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    id - the id to check
    
    Returns:
    
    true, if an entry exists with the given id, otherwise false.
  - findAll
```
public List<T> findAll()
```
    Returns a list of all persistent entities.
    
    Specified by:
    
    findAll in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Returns:
    
    list of all persistent entities
  - get
```
public T get(PK id)
```
    Retrieve a persisted entity with a given id from the database.
    
    Specified by:
    
    get in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    id - the id
    
    Returns:
    
    An entity of type T
  - getQuery
```
public javax.persistence.Query getQuery(String hqlQuery)
```
    Gets a Query from the given hql query.
    
    Specified by:
    
    getQuery in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    hqlQuery - the hql query
    
    Returns:
    
    the Query
  - load
```
public T load(PK id)
```
    Retrieve a persisted entity with a given id from the database.
    
    Specified by:
    
    load in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    id - the id
    
    Returns:
    
    An entity of type T
  - merge
```
public List<T> merge(List<T> entities)
```
    Merges all new entities in the given list.
    
    Specified by:
    
    merge in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entities - the list to save
    
    Returns:
    
    the list with the ids of the merged entities
  - merge
```
public T merge(T entity)
```
    Merges the given entity. @see Hibernate documentation.
    
    Specified by:
    
    merge in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the entity
    
    Returns:
    
    the entity
  - newDeleteStrategy
```
public DeleteStrategy<T,PK> newDeleteStrategy()
```
    Factory method for creating a new DeleteStrategy for interact on deletion process. This method can be overridden so users can provide their own version of a new DeleteStrategy for the deletion process.
    
    Returns:
    
    the new DeleteStrategy for the deletion process.
  - newMergeStrategy
```
public MergeStrategy<T,PK> newMergeStrategy()
```
    Factory method for creating a new MergeStrategy for interact on merge process. This method can be overridden so users can provide their own version of a new MergeStrategy for the merge process.
    
    Returns:
    
    the new MergeStrategy for the merge process.
  - newSaveOrUpdateStrategy
```
public SaveOrUpdateStrategy<T,PK> newSaveOrUpdateStrategy()
```
    Factory method for creating a new SaveOrUpdateStrategy for interact on save or update process. This method can be overridden so users can provide their own version of a new SaveOrUpdateStrategy for the save or update process.
    
    Returns:
    
    the new SaveOrUpdateStrategy for the save or update process.
  - refresh
```
public void refresh(T entity)
```
    Description copied from interface: GenericRepository
    
    Re-read the state of the given instance from the underlying database.
    
    Specified by:
    
    refresh in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the entity to re-read.
  - save
```
public List<PK> save(List<T> entities)
```
    Save all new entities in the given list.
    
    Specified by:
    
    save in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entities - the list to save
    
    Returns:
    
    the list with the ids of the saved entities
  - save
```
public PK save(T entity)
```
    Persist the given entity into database.
    
    Specified by:
    
    save in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the new instance to save.
    
    Returns:
    
    the id of the saved entity
  - saveOrUpdate
```
public void saveOrUpdate(List<T> entities)
```
    Save or update all transient entities in the given list.
    
    Specified by:
    
    saveOrUpdate in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entities - the transient entities
  - saveOrUpdate
```
public void saveOrUpdate(T entity)
```
    Save or update the given persistent entity.
    
    Specified by:
    
    saveOrUpdate in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the transient entity to save or update.
  - update
```
public void update(List<T> entities)
```
    Update all transient entities in the given list.
    
    Specified by:
    
    update in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entities - the transient entities to update.
  - update
```
public void update(T entity)
```
    Update changes made to the given entity.
    
    Specified by:
    
    update in interface GenericRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>
    
    Parameters:
    
    entity - the transient entity to update.

Class AbstractRepository<T extends de.alpharogroup.db.entity.BaseEntity<PK>,PK extends Serializable>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface de.alpharogroup.db.repository.api.GenericRepository

Constructor Detail

AbstractRepository

Method Detail

create

createNamedQuery

createNamedTypedQuery

delete

delete

delete

evict

exists

findAll

get

getQuery

load

merge

merge

newDeleteStrategy

newMergeStrategy

newSaveOrUpdateStrategy

refresh

save

save

saveOrUpdate

saveOrUpdate

update

update