org.entityfs
Interface ViewCapable<T extends EntityView>

All Known Subinterfaces:

Directory, DirectoryView, EntityAcceptingEntity<T>, EntityAcceptingEntityView<T>

public interface ViewCapable<T extends EntityView>

This interface is implemented by the entity and entity view types that are capable of creating filtered views of themselves.

Since:

1.0

Author:

Karl Gustafsson

Method Summary

Filter<? super EntityView>	getFilter() Get the filter that is used to create this view.
boolean	hasFilters() Does this view have any filters?
T	newView(Filter<? super EntityView> f) Create a new, connected view on this entity or entity view.

Method Detail

newView

T newView(Filter<? super EntityView> f)

Create a new, connected view on this entity or entity view.

Parameters:

f - The filter that determines which child entities will be visible in the view.

Returns:

A new view on this entity or entity view. The type of the object returned is determined by the type of the entity viewed. A view for a Directory is a DirectoryView, for instance.

Locks_required:

None

Permissions_required:

None

getFilter

Filter<? super EntityView> getFilter()

Get the filter that is used to create this view. If this is called on an entity, this method returns null.

Returns:

The filter used to create this view, or null if this is called on an entity.

Locks_required:

None

Permissions_required:

None

hasFilters

boolean hasFilters()

Does this view have any filters?

Returns:

true if this view has any filters, or false if this method is called on an entity object.

Locks_required:

None

Permissions_required:

None