PagingHandler Class |
A RDF Handler which wraps another handler passing only the chunk of triples falling within a given limit and offset to the underlying Handler.
Inheritance HierarchySystem.Object
VDS.RDF.Parsing.Handlers.BaseHandler
VDS.RDF.Parsing.Handlers.BaseRdfHandler
VDS.RDF.Parsing.Handlers.PagingHandler
VDS.RDF.Parsing.Handlers.BaseHandler
VDS.RDF.Parsing.Handlers.BaseRdfHandler
VDS.RDF.Parsing.Handlers.PagingHandler
Namespace: VDS.RDF.Parsing.Handlers
Assembly: dotNetRDF (in dotNetRDF.dll) Version:
SyntaxThe PagingHandler type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | PagingHandler(IRdfHandler, Int32) |
Creates a new Paging Handler.
|
| PagingHandler(IRdfHandler, Int32, Int32) |
Creates a new Paging Handler.
|
Properties| Name | Description | |
|---|---|---|
 | AcceptsAll |
Gets whether the Handler will accept all Triples based on its Limit setting.
(Overrides BaseRdfHandler.AcceptsAll.) |
| InnerHandlers |
Gets the Inner Handler wrapped by this Handler.
|
 | NodeFactory |
Gets/Sets the in-use Node Factory.
(Inherited from BaseHandler.) |
Methods| Name | Description | |
|---|---|---|
| CreateBlankNode() |
Creates a Blank Node.
(Inherited from BaseHandler.) |
| CreateBlankNode(String) |
Creates a Blank Node with the given ID.
(Inherited from BaseHandler.) |
| CreateGraphLiteralNode() |
Creates a Graph Literal Node.
(Inherited from BaseHandler.) |
| CreateGraphLiteralNode(IGraph) |
Creates a Graph Literal Node with the given sub-graph.
(Inherited from BaseHandler.) |
| CreateLiteralNode(String) |
Creates a Literal Node.
(Inherited from BaseHandler.) |
| CreateLiteralNode(String, String) |
Creates a Literal Node with the given Language.
(Inherited from BaseHandler.) |
| CreateLiteralNode(String, Uri) |
Creates a Literal Node with the given Datatype.
(Inherited from BaseHandler.) |
| CreateUriNode |
Creates a URI Node.
(Inherited from BaseHandler.) |
| CreateVariableNode |
Creates a Variable Node.
(Inherited from BaseHandler.) |
| EndRdf |
Ends the Handling of RDF.
(Inherited from BaseRdfHandler.) |
 | EndRdfInternal |
Ends RDF Handler.
(Overrides BaseRdfHandler.EndRdfInternal(Boolean).) |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetNextBlankNodeID |
Gets the next available Blank Node ID.
(Inherited from BaseHandler.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| HandleBaseUri |
Handles Base URI declarations.
(Inherited from BaseRdfHandler.) |
| HandleBaseUriInternal |
Handles Base URI Declarations by allowing the inner handler to handle it.
(Overrides BaseRdfHandler.HandleBaseUriInternal(Uri).) |
| HandleNamespace |
Handles Namespace declarations.
(Inherited from BaseRdfHandler.) |
| HandleNamespaceInternal |
Handles Namespace Declarations by allowing the inner handler to handle it.
(Overrides BaseRdfHandler.HandleNamespaceInternal(String, Uri).) |
| HandleTriple |
Handles Triples.
(Inherited from BaseRdfHandler.) |
| HandleTripleInternal |
Handles a Triple by passing it to the Inner Handler only if the Offset has been passed and the Limit has yet to be reached.
(Overrides BaseRdfHandler.HandleTripleInternal(Triple).) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| StartRdf |
Starts the Handling of RDF.
(Inherited from BaseRdfHandler.) |
| StartRdfInternal |
Starts RDF Handler.
(Overrides BaseRdfHandler.StartRdfInternal().) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Extension Methods| Name | Description | |
|---|---|---|
 | Apply(IGraph) | Overloaded.
Applies the triples of a Graph to an RDF Handler.
(Defined by HandlerExtensions.) |
| Apply(IEnumerable<Triple>) | Overloaded.
Applies the triples to an RDF Handler.
(Defined by HandlerExtensions.) |
Remarks
This handler does not guarantee that you will receive exactly the chunk specified by the limit and offset for two reasons:.
- It does not perform any sort of data de-duplication so it is possible that if this handler receives duplicate triples and the underlying handler performs de-duplication then you may see less triples than you expect in your final output since although the underlying handler will receive at most the specified chunk size of triples it may not retain them all
- If there are fewer triples than the chunk size or if the chunk exceeds the bounds of the data then you will only receive the triples that fall within the chunk (if any)
See Also