org.entityfs.cap.entityattrs.impl.metadata
Interface ChildEntityAttributeManager<T extends EntityAttributes>

Type Parameters:

T - The concrete type of EntityAttributes managed by this object.

All Known Implementing Classes:

DatabaseChildEntityAttributeManager

public interface ChildEntityAttributeManager<T extends EntityAttributes>

The child entity attributes manager is used by a entity attributes-enabled directory to manage the entity attributes of its child entities. One instance of this class (created by a ChildEntityAttributeManagerFactory) is used for every directory.

Since:

1.0

Author:

Karl Gustafsson

See Also:

AttributeFileRepository

In_jar:

entityfs-entity_attributes

Method Summary

void	add(String name, T attr) Set a new attribute record for the entity.
boolean	containsKey(String name) Does this object contain attributes for the named entity.
void	delete(String name) Delete the attribute record for the supplied entity.
T	get(String name, EntityType et) Get the attributes for the entity.
void	update(String name, T attr) Update the attribute record for the entity.

Method Detail

add

void add(String name,
         T attr)

Set a new attribute record for the entity. The entity should not have had any attributes previously.

Parameters:

name - The name of the entity.

attr - The attributes.

containsKey

boolean containsKey(String name)

Does this object contain attributes for the named entity.

Parameters:

name - The name of the entity.

Returns:

true if there is an attribute record for the entity.

get

T get(String name,
      EntityType et)

Get the attributes for the entity. If no attribute record is stored for the entity, return default attributes.

Parameters:

name - The entity name,

et - The type of entity. This is used to create default attributes if no attribute record is saved for the entity.

Returns:

The attributes for the entity.

update

void update(String name,
            T attr)

Update the attribute record for the entity.

Parameters:

name - The name of the entity.

attr - The new attributes for the entity.

delete

void delete(String name)

Delete the attribute record for the supplied entity.

Parameters:

name - The name of the entity whose record should be deleted.