Class ProviderHasOid<T extends HasOid>

java.lang.Object

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

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

Type Parameters:

T - type of the items handled in the provider

public class ProviderHasOid<T extends HasOid>
extends Provider<T>

The class is a decorator for a provider with entities having a unique object identifier which should be handled through the provider.

Constructor Summary

Constructors

Constructor	Description
ProviderHasOid(@NotNull net.tangly.commons.generator.IdGenerator generator, @NotNull Provider<T> provider)

Method Summary

Modifier and Type	Method	Description
boolean	canBeAdded(T entity)	Checks if the entity can be added through the provider.
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 extends HasOid> Provider<T>	of(@NotNull net.tangly.commons.generator.IdGenerator generator)
static <T extends HasOid> Provider<T>	of(@NotNull net.tangly.commons.generator.IdGenerator generator, @NotNull Iterable<T> items)
static <T extends HasOid> Provider<T>	of(@NotNull net.tangly.commons.generator.IdGenerator generator, @NotNull org.eclipse.store.storage.embedded.types.EmbeddedStorageManager storageManager, @NotNull List<T> items)
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

ProviderHasOid

public ProviderHasOid(@NotNull
 @NotNull net.tangly.commons.generator.IdGenerator generator,
 @NotNull
 @NotNull Provider<T> provider)

Method Details

of

public static <T extends HasOid> Provider<T> of(@NotNull
 @NotNull net.tangly.commons.generator.IdGenerator generator)

of

public static <T extends HasOid> Provider<T> of(@NotNull
 @NotNull net.tangly.commons.generator.IdGenerator generator,
 @NotNull
 @NotNull Iterable<T> items)

of

public static <T extends HasOid> Provider<T> of(@NotNull
 @NotNull net.tangly.commons.generator.IdGenerator generator,
 @NotNull
 @NotNull org.eclipse.store.storage.embedded.types.EmbeddedStorageManager storageManager,
 @NotNull
 @NotNull List<T> items)

canBeAdded

public boolean canBeAdded(@NotNull
 T entity)

Checks if the entity can be added through the provider. The entity can be added either if no entity with the same oid is already stored in the provider, or the stored entity and the entity we shall add is the same Java object.

Parameters:

entity - entity to be added

Returns:

flag indicating if it is allowed to add the object

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 extends HasOid>

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 extends HasOid>

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 extends HasOid>

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 extends HasOid>