| Method Summary |
|
| public boolean | contains(Object entity)
Check if the instance belongs to the current persistence context. |
| public Query | createNamedQuery(String name)
Create an instance of Query for executing a named query (in EJBQL or native SQL). |
| public Query | createNativeQuery(String sqlString)
Create an instance of Query for executing a native SQL query. |
| public Query | createNativeQuery(String sqlString, Class resultClass)
Create an instance of Query for executing
a native SQL query. |
| public Query | createNativeQuery(String sqlString, String resultSetMapping)
Create an instance of Query for executing
a native SQL query. |
| public Query | createQuery(String ejbqlString)
Create an instance of Query for executing an EJBQL query. |
| public Object | find(String entityName, Object primaryKey)
Find by primary key. |
| public T | find(Class<T> entityClass, Object primaryKey)
Find by primary key. |
| public void | flush()
Synchronize the persistence context with the underlying database. |
| public T | merge(T entity)
Merge the state of the given entity into the current persistence context,
using the unqualified class name as the entity name. |
| public void | persist(Object entity)
Make an instance managed, using the unqualified class name as the entity name. |
| public void | refresh(Object entity)
Refresh the state of the instance from the
database. |
| public void | remove(Object entity)
Remove the instance. |