org.openrdf.query

Interface Dataset

All Known Implementing Classes:

DatasetImpl, FallbackDataset

public interface Dataset

Represents a dataset against which operations can be evaluated. A dataset consists of a default graph for read and using operations, which is the RDF merge of one or more graphs, a set of named graphs, and a single update graph for INSERT and DELETE. See SPARQL Query Language for RDF for more info.

Author:

Simon Schenk, Arjohn Kampman, James Leigh

Method Summary

Modifier and Type	Method and Description
Set<URI>	getDefaultGraphs() Gets the default graph URIs of this dataset.
URI	getDefaultInsertGraph() Gets the default insert graph URI of this dataset.
Set<URI>	getDefaultRemoveGraphs() Gets the default remove graph URIs of this dataset.
Set<URI>	getNamedGraphs() Gets the named graph URIs of this dataset.

Method Detail

getDefaultRemoveGraphs

Set<URI> getDefaultRemoveGraphs()

Gets the default remove graph URIs of this dataset. An empty set indicates the the store's default behaviour should be used, if not otherwise indicated in the operation.

getDefaultInsertGraph

URI getDefaultInsertGraph()

Gets the default insert graph URI of this dataset. An null value indicates that the store's default behaviour should be used, if not otherwise indicated in the operation.

getDefaultGraphs

Set<URI> getDefaultGraphs()

Gets the default graph URIs of this dataset. An empty default graph set and a non-empty named graph set indicates that the default graph is an empty graph. However, if both the default graph set and the named graph set are empty, that indicates that the store's default behaviour should be used.

getNamedGraphs

Set<URI> getNamedGraphs()

Gets the named graph URIs of this dataset. An empty named graph set and a non-empty default graph set indicates that there are no named graphs. However, if both the default graph set and the named graph set are empty, that indicates that the store's default behaviour should be used.