Package io.ebean

Class BeanFinder<I,T>

java.lang.Object

io.ebean.BeanFinder<I,T>

Type Parameters:

I - The ID type

T - The Bean type

Direct Known Subclasses:

BeanRepository

public abstract class BeanFinder<I,T>
extends Object

Provides finder functionality for use with "Dependency Injection style" use of Ebean.

Note that typically users would extend BeanRepository rather than BeanFinder.

 public class CustomerFinder extends BeanFinder<Long,Customer> {

   @Inject
   public CustomerFinder(Database database) {
     super(Customer.class, database);
   }

   // ... add customer specific finders
 }

 

Method Summary

Modifier and Type	Method	Description
Transaction	currentTransaction()	Return the current transaction.
Database	db()	Return the Database to use.
Database	db(String server)	Return typically a different Database to the default.
void	deleteById(I id)	Delete a bean by Id.
List<T>	findAll()	Retrieves all entities of the given type.
T	findById(I id)	Retrieves an entity by ID.
Optional<T>	findByIdOrEmpty(I id)	Find an entity by ID returning an Optional.
void	flush()	Flush the JDBC batch on the current transaction.
T	ref(I id)	Creates an entity reference for this ID.

Methods inherited from class java.lang.Object

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

Method Details

db

public Database db()

Return the Database to use.

currentTransaction

public Transaction currentTransaction()

Return the current transaction.

flush

public void flush()

Flush the JDBC batch on the current transaction.

db

public Database db(String server)

Return typically a different Database to the default.

This is equivalent to DB.byName(String)

Parameters:

server - The name of the Database. If this is null then the default Database is returned.

ref

@Nonnull
public T ref(I id)

Creates an entity reference for this ID.

Equivalent to Database.getReference(Class, Object)

findById

@Nullable
public T findById(I id)

Retrieves an entity by ID.

findByIdOrEmpty

@Nullable
public Optional<T> findByIdOrEmpty(I id)

Find an entity by ID returning an Optional.

deleteById

public void deleteById(I id)

Delete a bean by Id.

findAll

@Nonnull
public List<T> findAll()

Retrieves all entities of the given type.