@mozilla.org/rdf/datasource;1?name=composite-datasource
This component implements the following interfaces:
Properties
PRBool nsIRDFCompositeDataSource.allowNegativeAssertions
Set this value to true if the composite datasource
may contains at least one datasource that has negative
assertions. (This is the default.)
Set this value to false if none of the datasources
being composed contains a negative assertion. This allows the
composite datasource to perform some query optimizations.
By default, this value is true.
PRBool nsIRDFCompositeDataSource.coalesceDuplicateArcs
Set to true if the composite datasource should
take care to coalesce duplicate arcs when returning values from
queries. (This is the default.)
Set to false if the composite datasource shouldn't
bother to check for duplicates. This allows the composite
datasource to more efficiently answer queries.
By default, this value is true.
readonly char* nsIRDFDataSource.URI
The "URI" of the data source. This used by the RDF service's GetDataSource() method to cache datasources.
Methods
| Interface | Method |
|---|---|
| nsIRDFCompositeDataSource |
void AddDataSource ( nsIRDFDataSource dataSource )
|
| nsIRDFDataSource |
void AddObserver ( nsIRDFObserver observer )
|
| nsIRDFDataSource |
nsISimpleEnumerator ArcLabelsIn ( nsIRDFNode node )
|
| nsIRDFDataSource |
nsISimpleEnumerator ArcLabelsOut ( nsIRDFResource source )
|
| nsIRDFDataSource |
void Assert ( nsIRDFResource source , nsIRDFResource property , nsIRDFNode target , PRBool truthValue )
|
| nsIRDFDataSource |
void beginUpdateBatch ( )
|
| nsIRDFDataSource |
void Change ( nsIRDFResource source , nsIRDFResource property , nsIRDFNode oldTarget , nsIRDFNode newTarget )
|
| nsIRDFDataSource |
void DoCommand ( nsISupportsArray sources , nsIRDFResource command , nsISupportsArray arguments )
|
| nsIRDFDataSource |
void endUpdateBatch ( )
|
| nsIRDFDataSource |
nsISimpleEnumerator GetAllCmds ( nsIRDFResource source )
|
| nsIRDFDataSource |
nsISimpleEnumerator GetAllResources ( )
|
| nsIRDFCompositeDataSource |
nsISimpleEnumerator GetDataSources ( )
|
| nsIRDFDataSource |
nsIRDFResource GetSource ( nsIRDFResource property , nsIRDFNode target , PRBool truthValue )
|
| nsIRDFDataSource |
nsISimpleEnumerator GetSources ( nsIRDFResource property , nsIRDFNode target , PRBool truthValue )
|
| nsIRDFDataSource |
nsIRDFNode GetTarget ( nsIRDFResource source , nsIRDFResource property , PRBool truthValue )
|
| nsIRDFDataSource |
nsISimpleEnumerator GetTargets ( nsIRDFResource source , nsIRDFResource property , PRBool truthValue )
|
| nsIRDFDataSource |
PRBool hasArcIn ( nsIRDFNode node , nsIRDFResource arc )
|
| nsIRDFDataSource |
PRBool hasArcOut ( nsIRDFResource source , nsIRDFResource arc )
|
| nsIRDFDataSource |
PRBool HasAssertion ( nsIRDFResource source , nsIRDFResource property , nsIRDFNode target , PRBool truthValue )
|
| nsIRDFDataSource |
PRBool IsCommandEnabled ( nsISupportsArray sources , nsIRDFResource command , nsISupportsArray arguments )
|
| nsIRDFDataSource |
void Move ( nsIRDFResource oldSource , nsIRDFResource newSource , nsIRDFResource property , nsIRDFNode target )
|
| nsIRDFObserver |
void onAssert ( nsIRDFDataSource dataSource , nsIRDFResource source , nsIRDFResource property , nsIRDFNode target )
|
| nsIRDFObserver |
void onBeginUpdateBatch ( nsIRDFDataSource dataSource )
|
| nsIRDFObserver |
void onChange ( nsIRDFDataSource dataSource , nsIRDFResource source , nsIRDFResource property , nsIRDFNode oldTarget , nsIRDFNode newTarget )
|
| nsIRDFObserver |
void onEndUpdateBatch ( nsIRDFDataSource dataSource )
|
| nsIRDFObserver |
void onMove ( nsIRDFDataSource dataSource , nsIRDFResource oldSource , nsIRDFResource newSource , nsIRDFResource property , nsIRDFNode target )
|
| nsIRDFObserver |
void onUnassert ( nsIRDFDataSource dataSource , nsIRDFResource source , nsIRDFResource property , nsIRDFNode target )
|
| nsIRDFCompositeDataSource |
void RemoveDataSource ( nsIRDFDataSource dataSource )
|
| nsIRDFDataSource |
void RemoveObserver ( nsIRDFObserver observer )
|
| nsIRDFDataSource |
void Unassert ( nsIRDFResource source , nsIRDFResource property , nsIRDFNode target )
|
Reference documentation is generated from Mozilla's source.