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

/** provides access to a predefined heterogeneous group of values and nested
 trees as part of a hierarchy.

 <p>Provides access to, and information about, its children and descendants
 viewed either as properties or as contained elements.
 </p>

 <p><em>Groups</em> are static collections within the hierarchy.</p>

 <p>The number and names of contained elements are fixed in advance
 and each child may have a different type.
 </p>

 <p>This service subsumes two alternate ways of accessing child and descendent
 elements. These strongly overlap, supporting the basic identity
 <code>xGroup.getPropertyValue( aName ) == xGroup.getByName( aName )</code>.
 </p>

 @see com::sun::star::configuration::GroupElement
    Child objects of this service generally implement service GroupElement.

 @see com::sun::star::configuration::SetAccess
    A complementary service providing for dynamic homogeneous sets of elements.

*/
published service GroupAccess
{
/** is the basic service for accessing child and descendent nodes using
 a view of the tree as a container of values and structuring elements.
*/
    service HierarchyAccess;

/** is the basic service for accessing child and descendent nodes using
 a view of the tree as a hierarchy of properties and subproperties.

 <p>This view is meaningful only for a static fragment of the hierarchy
 Object's properties may change, but not which properties they have.
 Therefore, dynamic elements of the hierarchy (see SetAccess)
 do not implement service PropertyHierarchy.
 </p>

 <p>If such elements occur as properties or subproperties of an implementation,
 it is not specified whether direct subproperty access using
 com::sun::star::beans::XHierarchicalPropertySet or
 com::sun::star::beans::XMultiHierarchicalPropertySet can
 be used to access descendants of such elements.
 </p>

 <p>Similarly, information about such descendants may not be available from
 the com::sun::star::beans::XHierarchicalPropertySetInfo
 the implementation provides.
 </p>

 <p>If an implementation is part of a <em>read-only</em> view of the hierarchy,
 all properties and subproperties will be reported as having attribute
 com::sun::star::beans::PropertyAttribute::READONLY set,
 and attempts to change property values will fail.
 </p>
*/
    service PropertyHierarchy;

/** provides access to the state of child elements of an implementation. [optional]

 <p>This interface should be present, if the hierarchy supports default values
 for simple (non-object) properties and the group contains such properties.
 </p>

 <p>For properties that are objects themselves, the semantic documented for
 service HierarchyAccess applies.
 </p>
 */
    [optional] interface com::sun::star::beans::XPropertyState;

/** provides access to the states of multiple child elements of
 an implementation. [optional]

 <p>This interface should be present, if the hierarchy supports default values
 for simple (non-object) properties and the group contains such properties.
 </p>

 <p>For properties that are objects themselves, the semantic documented for
 service HierarchyAccess applies.
 </p>
*/
    [optional] interface com::sun::star::beans::XMultiPropertyStates;
};


}; }; }; };

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