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RDFContainer ( will include rdfResource.js, rdfBase.js )
RDFContainer
RDFContainer is a class to manipulate rdf containers.
Note: This class is not intended to be directly created. RDF or RDFFile should create this for you. See RDF.getRootSeq() for an example.
void RDFContainer (string aType, string aPath, string aParent,
nsIRDFDataSource aDatasource)
Constructs an RDFContainer by its type and paths in the datasource.aType - defines the type, see below.
aPath - a resource path of the container.
aParent - a resource path to the parent if any (null if no parent).
aDatasource - an nsIRDFDataSource object.
Possible aTypes values:
- "seq" - Sequence.
- "alt" - Alt.
- "bag" - bag.
Example:
var container = new RDFContainer(aType, aContainer, this.parent, this.dsource);
RDFContainer .prototype.addSeq
Adds a sequence relative to this one.
RDFContainer addSeq (string aRelPath)
Returns a RDFContainer based on the relative resource path argument and the resource path of this container. For example, if this container has a path of "urn:test:bob" and "addresses" was passed in as the argument, the newly created container would have a path of "urn:test:bob:addresses".aRelPath - Relative resource path of the container.
Example:
var gRDF = new RDFFile(path);
var seq = gRDF.getRootSeq("urn:test:bob");
var newseq = seq.addSeq("addresses");
RDFContainer .prototype.addAlt
Adds a Alt relative to this one.
RDFContainer addAlt (string aRelPath)
Returns a RDFContainer based on the relative resource path argument and the resource path of this container. For example, if this container has a path of "urn:test:bob" and "addresses" was passed in as the argument, the newly created container would have a path of "urn:test:bob:addresses".aRelPath - Relative resource path of the container.
Example:
var gRDF = new RDFFile(path);
var alt = gRDF.getRootAlt("urn:test:bob");
var newalt = seq.addAlt("addresses");
RDFContainer .prototype.addBag
Adds a Bag relative to this one.
RDFContainer addBag (string aRelPath)
Returns a RDFContainer based on the relative resource path argument and the resource path of this container. For example, if this container has a path of "urn:test:bob" and "addresses" was passed in as the argument, the newly created container would have a path of "urn:test:bob:addresses".aRelPath - Relative resource path of the container.
Example:
var gRDF = new RDFFile(path);
var seq = gRDF.getRootSeq("urn:test:bob");
var newbag = seq.addBag("addresses");
RDFContainer .prototype.getNode
Get a relative node from the rdf datasource.
RDFResource getNode (string aRelPath)
Returns an RDFResource for a given relative resource path in the rdf graph.aRelPath - Relative resource path of the node.
Example:
var gRDF = new RDFFile(path );
var seq = gRDF.getRootSeq("urn:test:bob");
var node = seq.getNode("mynode1");
RDFContainer .prototype.addNode
Add a node to the rdf datasource.
RDFResource addNode (string aRelPath)
Creates and returns an RDFResource for a given relative resource path in the rdf graph.aRelPath - Relative resource path of the node.
Example:
var gRDF = new RDFFile(path );
var seq = gRDF.getRootSeq("urn:test:bob");
var node = seq.addNode("mynode1");
RDFContainer .prototype.getSubSeqs
Get relative sequences from the rdf datasource.
Array of RDFContainers getSubSeqs ()Example:
Returns a list of RDFContainers of type sequence that arc from this container.
var gRDF = new RDFFile(path );
var seq = gRDF.getRootSeq("urn:test:bob");
var list = gRDF.getSubSeqs();
for(var i=0; i<list.length; i++) {
...
}
RDF Container.prototype.getSubAlts
Get relative alts from the rdf datasource.
Array of RDFContainers getSubAlts ()Example:
Returns a list of RDFContainers of type alt that arc from this container.
var gRDF = new RDFFile(path );
var alt = gRDF.getRootAlt("urn:test:bob");
var list = gRDF.getSubAlts();
for(var i=0; i<list.length; i++) {
...
}
RDFContainer .prototype.getSubBags
Get relative bags from the rdf datasource.
Array of RDFContainers getSubBags ()Example:
Returns a list of RDFContainers of type bag that arc from this container.
var gRDF = new RDFFile(path );
var alt = gRDF.getRootAlt("urn:test:bob");
var list = gRDF.getSubBags();
for(var i=0; i<list.length; i++) {
...
}
RDFContainer .prototype.getSubContainers
Get relative containers from the rdf datasource.
Array of RDFContainers getSubBags ()Example:
Returns a list of RDFContainers of any type that arc from this container.
var gRDF = new RDFFile(path );
var alt = gRDF.getRootAlt("urn:test:bob");
var list = gRDF.getSubContainers();
for(var i=0; i<list.length; i++) {
if(list[i].type == "bag") {
...
}
}
RDFContainer .prototype.getSubNodes
Get relative nodes from the rdf datasource.
Array of RDFResource getSubNodes ()Example:
Returns a list of RDFResources that arc from this container.
var gRDF = new RDFFile(path );
var alt = gRDF.getRootAlt("urn:test:bob");
var list = gRDF.getSubNodes();
for(var i=0; i<list.length; i++)
...
}
RDFContainer .prototype.remove
Remove this resource from the datasource.
void remove (boolean aDeep)aDeep (optional) - To recursively remove or not.
Removes the resource from the datasource. Remember, that you have to flush the datasource to have this actually take affect. If aDeep is true, it will remove this container and anything it points to (be carefull, it would be easy to get into trouble here). An internal valid boolean will be set to false, and any manipulation of this container will fail.
Example:
var gRDF = new RDFFile(path);
var alt = gRDF.getRootAlt("urn:test:bob");
alt.remove(true);
// the variable alt is no longer valid.
gRDF.flush();