com.hp.util.dao.query

Class DaoFindFullDependentQuery<P extends Storable<?> & Dependable<E>,T extends Transportable<? super T,?> & Dependent<R>,F,S,E extends Serializable,W extends Storable<E>,R extends Transportable<? super R,E>>

java.lang.Object

com.hp.util.dao.ReadQuery<List<T>>

com.hp.util.dao.query.DaoFindFullDependentQuery<P,T,F,S,E,W,R>

Type Parameters:

P - type of the persistent object

T - type of the transport object with a reference to the owner

F - type of the associated filter

S - type of the associated sort specification type

E - type of the owner persistent object and owner transport object id. This type should be immutable. It is critical this type. implements equals() and hashCode() correctly

W - type of the owner persistent object

R - type of the owner transport object

public class DaoFindFullDependentQuery<P extends Storable<?> & Dependable<E>,T extends Transportable<? super T,?> & Dependent<R>,F,S,E extends Serializable,W extends Storable<E>,R extends Transportable<? super R,E>>
extends ReadQuery<List<T>>

Query to find dependent transport objects on the database. This query assumes the owner is accessed by using a Dao.

Note this query is extremely inefficient because for each dependent found in the database the owner is loaded when the dependent is converted to a transport object.

Author:

Fabiel Zuniga

Method Summary

Methods

Modifier and Type	Method and Description
static <P extends Storable<?> & Dependable<E>,T extends Transportable<? super T,?> & Dependent<R>,F,S,E extends Serializable,W extends Storable<E>,R extends Transportable<? super R,E>> ReadQuery<List<T>>	createQuery(F filter, SortSpecification<S> sortSpecification, BidirectionalDependentDao<?,P,T,?,F,S,E,W,R> dao, Dao<E,W,R,?,?> ownerDao) Creates a query.
protected List<T>	execute(DataStoreContext context) Executes the query.

Methods inherited from class com.hp.util.dao.ReadQuery

execute

Methods inherited from class java.lang.Object

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

Method Detail

createQuery

public static <P extends Storable<?> & Dependable<E>,T extends Transportable<? super T,?> & Dependent<R>,F,S,E extends Serializable,W extends Storable<E>,R extends Transportable<? super R,E>> ReadQuery<List<T>> createQuery(F filter,
                                                                                                                                                                                                             SortSpecification<S> sortSpecification,
                                                                                                                                                                                                             BidirectionalDependentDao<?,P,T,?,F,S,E,W,R> dao,
                                                                                                                                                                                                             Dao<E,W,R,?,?> ownerDao)

Creates a query.

This method is a convenience to infer the generic types.

Parameters:

filter - filter used to select the transport objects.

sortSpecification - sort specification.

dao - DAO used to perform the database operations for the query.

ownerDao - owner DAO.

Returns:

a query to add a transport object.

execute

protected List<T> execute(DataStoreContext context)

Description copied from class: ReadQuery

Executes the query.

Specified by:

execute in class ReadQuery<List<T extends Transportable<? super T,?> & Dependent<R>>>

Parameters:

context - data store context.

Returns:

the result of the query.