xref: /aoo41x/main/offapi/com/sun/star/configuration/AccessRootElement.idl (revision d1766043)

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#ifndef __com_sun_star_configuration_AccessRootElement_idl__
#define __com_sun_star_configuration_AccessRootElement_idl__

#ifndef __com_sun_star_configuration_HierarchyElement_idl__
#include <com/sun/star/configuration/HierarchyElement.idl>
#endif

#ifndef __com_sun_star_lang_XComponent_idl__
#include <com/sun/star/lang/XComponent.idl>
#endif

#ifndef __com_sun_star_lang_XLocalizable_idl__
#include <com/sun/star/lang/XLocalizable.idl>
#endif

#ifndef __com_sun_star_util_XChangesNotifier_idl__
#include <com/sun/star/util/XChangesNotifier.idl>
#endif

//=============================================================================

module com { module sun { module star { module configuration {

//=============================================================================
/** provides information about the root element of a hierarchy and
	about the hierarchy as a whole.

 <p>Provides information about the element and the whole hierarchy.
 Allows controlling the lifetime of the hierarchy.
 Allows observing changes in the hierarchy as a whole.
 </p>

 <p>When access to a hierarchy is first obtained from a factory or provider,
 this is the initial object that is created by the factory.
 It represents the <em>root</em> of the accessible part of the hierarchy.
 </p>

 <p><em><strong>NOTE:</strong> In this description 'hierarchy' may actually
 designate a part or fragment of a larger hierarchy. It is that part that is
 rooted in the element represented by an implementation of this service
 and that is accessible starting from this element.</em>
 </p>

 <p>Generally it is not possible to navigate the parent or siblings, if any,
 of this element, so <type scope="com::sun::star::container">XChild</type> is
 not supported.
 </p>

 @see com::sun::star::configuration::UpdateRootElement
	Implementations that support modifying data in the hierarchy
	implement service UpdateRootElement.

 @see com::sun::star::configuration::SetElement
	A complementary service, for children of a dynamic homogeneous container.

 @see com::sun::star::configuration::GroupElement
	A complementary service, for children of a static heterogeneous collection.

 @see com::sun::star::configuration::ConfigurationProvider
	Objects provided by a <type>ConfigurationProvider</type> implement this service.
*/
published service AccessRootElement
{
/** the basic service for accessing information about an element in the
 hierarchy.
*/
	service HierarchyElement;

/** allows controlling or observing the lifetime of the whole hierarchy.

 <p>The owner of the hierarchy may dispose of this object
 using <member scope="com::sun::star::lang">XComponent::dispose()</member>.
 As this object owns its child elements and, recursively, the whole hierarchy,
 any descendant elements obtained, directly or indirectly, from this object
 will also be disposed. Disposing of the object does not affect a persistent
 representation of the hierarchy.
 </p>

 <p>When an implementation is obtained from a factory or provider, ownership
 of it is usually transferred to the client. See the documentation
 of the particular provider or factory service for details.
 </p>

 <p>The provider of this object may still dispose of this object, when the
 lifetime of the provider ends or if these objects represent
 the root of only a fragment of an enclosing hierarchy and
 this fragment is removed from the complete hierarchy by an outside source.
 </p>

 <p>Clients may register an <type scope="com::sun::star::lang">XEventListener</type>
 to be notified when the object is disposed for either cause.
 </p>
*/
	interface com::sun::star::lang::XComponent;

/** allows registering listeners that observe the whole hierarchy.

 <p>A client can register an
 <type scope="com::sun::star::util">XChangesListener</type>,
 which will receive notifications for any changes within the
 hierarchy (fragment) this object represents.
 </p>

 <p>An implementation will collect as many changes as possible into a single
 <type scope="com::sun::star::util">ChangesEvent</type>. For Example:
 </p>

 <p>
 If <member scope="com::sun::star::beans">XMultiPropertySet::setPropertyValues()</member>
 or <member scope="com::sun::star::beans">XMultiHierarchicalPropertySet::setHierarchicalPropertyValues()</member>
 is used on an element of the hierarchy to change multiple values within
 the hierarchy, all changes will be notified with a single event.
 </p>

 <p>If an outside source uses
 <member scope="com::sun::star::util">XChangesBatch::commitChanges()</member>
 on an overlapping hierarchy access, all relevant changes will be notified
 with a single event.
 </p>

 @ see UpdateRootElement
 @ see com::sun::star::util::XChangesBatch
*/
	interface com::sun::star::util::XChangesNotifier;

/** provides access to the locale that applies to locale-dependent data
 in this hierarchy. [optional]

 <p>This interface may be missing if the implementation does not support
 locale-dependent data in the hierarchy or if the (partial) hierarchy rooted
 in this object does not contain any locale-dependent elements.
 </p>

 <p><em>Changing the locale is generally not supported.</em> If it is supported,
 there is no guarantee that values already loaded into the hierarchy, or an
 application cache, are refreshed to reflect the new locale. Use of
 <member scope="com::sun::star::lang">XLocalizable::setLocale()</member>
 is therefore not recommended.
 </p>
*/
	[optional] interface com::sun::star::lang::XLocalizable;

};

//=============================================================================

}; }; }; };

#endif