nsIRDFContainerUtils Interface

 Convert the specified index to an ordinal property.

nsIRDFResource IndexToOrdinalResource(in long aIndex)

 Return 'true' if the specified resource is an alternation

boolean IsAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Return 'true' if the specified resource is a bag

boolean IsBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Return 'true' if the specified resource is a container

boolean IsContainer(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Return 'true' if the specified resource is a container and it is empty

boolean IsEmpty(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Returns 'true' if the property is an RDF ordinal property.

boolean IsOrdinalProperty(in nsIRDFResource aProperty)

 Return 'true' if the specified resource is a sequence

boolean IsSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Decorates the specified resource appropriately to make it
 usable as an empty alternation in the specified data source.

nsIRDFContainer MakeAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Decorates the specified resource appropriately to make it
 usable as an empty bag in the specified data source.

nsIRDFContainer MakeBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Decorates the specified resource appropriately to make it
 usable as an empty sequence in the specified data source.

nsIRDFContainer MakeSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource)

 Convert the specified ordinal property into an index

long OrdinalResourceToIndex(in nsIRDFResource aOrdinal)

 Retrieve the index of element in the container. Returns -1 if
 the element is not in the container.

long indexOf(in nsIRDFDataSource aDataSource, in nsIRDFResource aContainer, in nsIRDFNode aElement)