public final class Datasets extends Object
Utility class for working with Dataset
Modifier and Type | Field and Description |
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static org.openrdf.query.Dataset |
EMPTY
A Dataset which is empty, that is, it's comprised of zero graphs.
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static org.openrdf.query.Dataset |
NO_DATASET
Constant for specifying that there is no specific dataset; a
Query
should use whatever information is in its from/from named clauses. |
Modifier and Type | Method and Description |
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static boolean |
contains(org.openrdf.query.Dataset theDataset,
org.openrdf.model.IRI theURI)
Return whether or not the dataset contains the given URI
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static org.openrdf.query.Dataset |
copy(org.openrdf.query.Dataset theDataset)
Make a copy of the dataset
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static boolean |
isEmpty(org.openrdf.query.Dataset theDataset)
Return whether or not the Dataset is empty, that is, if it contains no graphs
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static org.openrdf.query.Dataset |
of(Collection<org.openrdf.model.IRI> theGraphs)
Create a Dataset which is the union of all the graphs which will specify the default graph of the dataset
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static org.openrdf.query.Dataset |
of(org.openrdf.model.IRI theGraph,
org.openrdf.model.IRI... theOtherGraphs)
Create a new Dataset which is the union of all the specified graphs which will comprise the default graph of the dataset
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static org.openrdf.query.Dataset |
ofNamed(Collection<org.openrdf.model.IRI> theGraphs)
Create a Dataset which is the union of all the graphs which will specify the named graphs in the dataset
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static org.openrdf.query.Dataset |
ofNamed(org.openrdf.model.IRI theGraph,
org.openrdf.model.IRI... theOtherGraphs)
Create a Dataset which is the union of all the specified graphs which will specify the named graphs in the dataset
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static org.openrdf.query.Dataset |
union(org.openrdf.query.Dataset theDataset,
org.openrdf.query.Dataset theOtherDataset)
Return a new dataset which is the union of the given datasets.
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public static final org.openrdf.query.Dataset NO_DATASET
Query
should use whatever information is in its from/from named clauses.public static final org.openrdf.query.Dataset EMPTY
public static org.openrdf.query.Dataset of(org.openrdf.model.IRI theGraph, org.openrdf.model.IRI... theOtherGraphs)
theGraph
- the graphtheOtherGraphs
- any other graphspublic static org.openrdf.query.Dataset of(Collection<org.openrdf.model.IRI> theGraphs)
theGraphs
- the graphspublic static org.openrdf.query.Dataset ofNamed(org.openrdf.model.IRI theGraph, org.openrdf.model.IRI... theOtherGraphs)
theGraph
- the graphtheOtherGraphs
- any other graphspublic static org.openrdf.query.Dataset ofNamed(Collection<org.openrdf.model.IRI> theGraphs)
theGraphs
- the graphspublic static org.openrdf.query.Dataset union(org.openrdf.query.Dataset theDataset, org.openrdf.query.Dataset theOtherDataset)
theDataset
- the first datasettheOtherDataset
- the other datasetpublic static boolean contains(org.openrdf.query.Dataset theDataset, org.openrdf.model.IRI theURI)
theDataset
- the datasettheURI
- the URIpublic static org.openrdf.query.Dataset copy(org.openrdf.query.Dataset theDataset)
theDataset
- the datasetpublic static boolean isEmpty(org.openrdf.query.Dataset theDataset)
theDataset
- the datasetCopyright © 2010-2016 Stardog Union. All Rights Reserved.