ArtifactDAOImpl

extends DAO
implements ArtifactDAO

java.lang.Object
↳	vars.jpa.DAO
	↳	vars.knowledgebase.jpa.ArtifactDAOImpl

Summary

Inherited Fields

Public Constructors
	ArtifactDAOImpl(EntityManager entityManager)

Public Methods
Collection<Artifact>	find(String concept, String group, String key)
Collection<Artifact>	find(String concept, String group, String key, String version)
Collection<Artifact>	find(String concept, String group, String key, String version, String classifier)
Collection<Artifact>	findByReference(String reference) Find all artifacts that use the same reference (i.e.

Inherited Methods

From class vars.jpa.DAO

void	close() Closes the associated entityManger if it's open.
void	commit()
void	endTransaction() Close any open transaction used on the current thread.
boolean	equalInDatastore(Object thisObj, Object thatObj) True if the to objects represent the same object in the datastore.
<T> T	find(T object) Retrieves the object from the datastore.
List	findByNamedQuery(String name) Executes a named query that does not take any parameters
List	findByNamedQuery(String name, Map<String, Object> namedParameters) Executes a named query using a map of named parameters
<T> T	findByPrimaryKey(Class<T> clazz, Object primaryKey)
EntityManager	getEntityManager()
boolean	isPersistent(Object entity) Checks to see if the given object is persisted in the database
void	loadLazyRelations(Object entity) Many one-to-many relations are lazy loaded in JPA.
<T> T	merge(T entity) Update an object in the database and bring it into the current transaction
void	persist(Object entity) Insert an object into the database
void	remove(Object entity)
void	startTransaction() Start a database transaction.
static Map<String, Object>	toParameterMap(Object... args) The findByNamedQuery method needs a Map of parameters.

From class java.lang.Object

From interface vars.DAO

abstract void	close()
abstract void	commit()
abstract void	endTransaction()
abstract boolean	equalInDatastore(Object thisObj, Object thatObj) True if the to objects represent the same object in the datastore.
abstract <T> T	find(T object) Retrieves the object from the datastore.
abstract List	findByNamedQuery(String name) Executes a named query that does not take any parameters
abstract List	findByNamedQuery(String name, Map<String, Object> namedParameters) Executes a named query using a map of named parameters
abstract <T> T	findByPrimaryKey(Class<T> clazz, Object primaryKey)
abstract EntityManager	getEntityManager()
abstract boolean	isPersistent(Object entity) Checks to see if the given object is persisted in the databas
abstract void	loadLazyRelations(Object entity) Many one-to-many relations are lazy loaded in JPA.
abstract <T> T	merge(T object)
abstract void	persist(Object object)
abstract void	remove(Object object)
abstract void	startTransaction()

Find all artifacts that use the same reference (i.e. URL)

reference	The reference we'll use to find matching artifacts