Class ProviderView<T>

java.lang.Object

net.tangly.core.providers.Provider<T>

net.tangly.core.providers.ProviderView<T>

Type Parameters:

T - type of the items handled in the provider

public class ProviderView<T>
extends Provider<T>

Define a filtered view on an underlying provider. The view is defined by a predicate on the items of the provider.

Constructor Summary

Constructors

Constructor	Description
ProviderView(@NotNull Provider<T> provider, @NotNull Predicate<T> predicate)

Method Summary

Modifier and Type	Method	Description
void	delete(T entity)	Deletes the data associated with the entity.
void	deleteAll()	Deletes all the entities managed by the provider.
List<T>	items()	Returns a list containing all known instances of the entity type.
static <T> Provider<T>	of(@NotNull Provider<T> provider)
static <T> Provider<T>	of(@NotNull Provider<T> provider, @NotNull Predicate<T> predicate)
void	predicate(Predicate<T> predicate)
void	update(T entity)	Updates the data associated with the entity.

Methods inherited from class net.tangly.core.providers.Provider

containsById, execute, findBy, findById, findByOid, mutex, replace, updateAll

Methods inherited from class java.lang.Object

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

Constructor Details

ProviderView

public ProviderView(@NotNull
 @NotNull Provider<T> provider,
 @NotNull
 @NotNull Predicate<T> predicate)

Method Details

of

public static <T> Provider<T> of(@NotNull
 @NotNull Provider<T> provider)

of

public static <T> Provider<T> of(@NotNull
 @NotNull Provider<T> provider,
 @NotNull
 @NotNull Predicate<T> predicate)

predicate

public void predicate(Predicate<T> predicate)

items

public List<T> items()

Description copied from class: Provider

Returns a list containing all known instances of the entity type.

Specified by:

items in class Provider<T>

Returns:

list of all instances

update

public void update(@NotNull
 T entity)

Description copied from class: Provider

Updates the data associated with the entity. If the entity is new, the update is handled as a create operation. The update is transitive and all referenced entities are also updated. The entity given as a parameter becomes the instance managed through the provider.

Specified by:

update in class Provider<T>

Parameters:

entity - entity to update

delete

public void delete(@NotNull
 T entity)

Description copied from class: Provider

Deletes the data associated with the entity. The object identifier is invalidated.

Specified by:

delete in class Provider<T>

Parameters:

entity - entity to delete

deleteAll

public void deleteAll()

Description copied from class: Provider

Deletes all the entities managed by the provider.

Specified by:

deleteAll in class Provider<T>