com.h3c.util.dao

Interface BaseDao<I extends Serializable,P extends Storable<I>,T extends Transportable<? super T,I>,F,S>

Type Parameters:

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

P - type of model persistent object

T - type of the transport object

F - type of the associated filter

S - type of the associated sort specification type

All Known Subinterfaces:

BidirectionalDependentDao<I,P,T,Q,F,S,E,W,R>, Dao<I,P,T,F,S>

All Known Implementing Classes:

AbstractBaseDao, AbstractBidirectionalDependentDao, AbstractDao

public interface BaseDao<I extends Serializable,P extends Storable<I>,T extends Transportable<? super T,I>,F,S>

Base Data Access Object.

Method Summary

Methods

Modifier and Type	Method and Description
long	count(F filter, DataStoreContext context) Gets the number of persist objects based on a filter criteria.
List<P>	find(F filter, SortSpecification<S> sortSpec, DataStoreContext context) Get the set of persist objects based on the given filter criteria.
Page<P>	find(F filter, SortSpecification<S> sortSpec, PageRequest pageRequest, DataStoreContext context) Get the set of persist objects based on the given filter criteria.
List<P>	findAll(SortSpecification<S> sortSpec, DataStoreContext context) Gets all the persistent objects.
P	get(Id<T,I> id, DataStoreContext context) Get the persistent object with the given id.

Method Detail

get

P get(Id<T,I> id,
    DataStoreContext context)

Get the persistent object with the given id.

Parameters:

id - persistent object's id

context - data store context

Returns:

the persistent object

find

List<P> find(F filter,
           SortSpecification<S> sortSpec,
           DataStoreContext context)

Get the set of persist objects based on the given filter criteria.

Parameters:

filter - Filter criteria

sortSpec - sort specification

context - data store context

Returns:

A set of persistent object instances

find

Page<P> find(F filter,
           SortSpecification<S> sortSpec,
           PageRequest pageRequest,
           DataStoreContext context)
                                 throws IndexOutOfBoundsException

Get the set of persist objects based on the given filter criteria.

Parameters:

filter - Filter criteria

sortSpec - sort specification

pageRequest - the page of data desired

context - data store context

Returns:

A set of persistent object instances

Throws:

IndexOutOfBoundsException - if page request is for a page outside the maximum or minimum pages for the request

findAll

List<P> findAll(SortSpecification<S> sortSpec,
              DataStoreContext context)

Gets all the persistent objects.

Parameters:

sortSpec - sort specification

context - data store context

Returns:

A set of persist object instances

count

long count(F filter,
         DataStoreContext context)

Gets the number of persist objects based on a filter criteria.

Parameters:

filter - Filter criteria

context - data store context

Returns:

The instances count