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[scriptable, uuid(d4214e91-fb94-11d2-bdd8-00104bde6048)]

  
interface nsIRDFContainerUtils : nsISupports








  
    
Methods

    

  
      

        
 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)


      

  

  
      

        
 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)