Ontology (Shared code 0.2.3 API)

java.lang.Object
- org.wikidata.query.rdf.common.uri.Ontology

```
public final class Ontology
extends Object
```
Marks the kinds of things (items or properties).

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`Ontology.Geo` Predicates used to describe a geographic point.
`static class`	`Ontology.Quantity` Predicates used to describe a quantity.
`static class`	`Ontology.Time` Predicates used to describe a time.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BEST_RANK` Statements with the best rank.
`static String`	`DEPRECATED_RANK` Rank that isn't even considered best when there are no better statement.
`static String`	`DUMP` Wikibase exports dump information with this subject.
`static String`	`ITEM` Wikibase exports all items with an assertion that their RDF.TYPE is this and we filter that out.
`static String`	`LABEL` Prefix for the label service.
`static String`	`NAMESPACE` Common prefix of all ontology parts.
`static String`	`NORMAL_RANK` Rank that is best if there are no preferred rank statements.
`static String`	`OLD_NAMESPACE` Old ontology prefix, for loading old dumps.
`static String`	`PREFERRED_RANK` Rank that overrides all normal rank statements.
`static String`	`PROPERTY` Wikibase exports all items with an assertion that their RDF.TYPE is this.
`static String`	`RANK` Predicate for marking Wikibase's Rank.
`static String`	`REFERENCE` Wikibase exports references with an assertion that their RDF.TYPE is this and we filter that out.
`static String`	`STATEMENT` Wikibase exports all statements with an assertion that their RDF.TYPE is this and we filter that out.
`static String`	`VALUE` Wikibase exports values with an assertion that their RDF.TYPE is this and we filter that out.
`static String`	`WIKIGROUP` Prefix for wiki group.

Method Summary

Methods
Modifier and Type Method and Description

static StringBuilder prefix(StringBuilder query)
Add prefix to a query.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods
Modifier and Type	Method and Description
`static StringBuilder`	`prefix(StringBuilder query)` Add prefix to a query.

- Field Detail
  - NAMESPACE
```
public static final String NAMESPACE
```
    Common prefix of all ontology parts.
    
    See Also:
    Constant Field Values
  - OLD_NAMESPACE
```
public static final String OLD_NAMESPACE
```
    Old ontology prefix, for loading old dumps. TODO: remove this when ontology stabilizes.
    
    See Also:
    Constant Field Values
  - ITEM
```
public static final String ITEM
```
    Wikibase exports all items with an assertion that their RDF.TYPE is this and we filter that out. Its also used as a inline literal type for inlining uris in Blazegraph.
    
    See Also:
    Constant Field Values
  - PROPERTY
```
public static final String PROPERTY
```
    Wikibase exports all items with an assertion that their RDF.TYPE is this. Its also used as a inline literal type for inlining uris in Blazegraph.
    
    See Also:
    Constant Field Values
  - STATEMENT
```
public static final String STATEMENT
```
    Wikibase exports all statements with an assertion that their RDF.TYPE is this and we filter that out.
    
    See Also:
    Constant Field Values
  - REFERENCE
```
public static final String REFERENCE
```
    Wikibase exports references with an assertion that their RDF.TYPE is this and we filter that out.
    
    See Also:
    Constant Field Values
  - VALUE
```
public static final String VALUE
```
    Wikibase exports values with an assertion that their RDF.TYPE is this and we filter that out.
    
    See Also:
    Constant Field Values
  - DUMP
```
public static final String DUMP
```
    Wikibase exports dump information with this subject.
    
    See Also:
    Constant Field Values
  - RANK
```
public static final String RANK
```
    Predicate for marking Wikibase's Rank.
    
    See Also:
    The documentation for ranking, Constant Field Values
  - BEST_RANK
```
public static final String BEST_RANK
```
    Statements with the best rank. These are the ones you usually want to find.
    
    See Also:
    Constant Field Values
  - PREFERRED_RANK
```
public static final String PREFERRED_RANK
```
    Rank that overrides all normal rank statements.
    
    See Also:
    Constant Field Values
  - NORMAL_RANK
```
public static final String NORMAL_RANK
```
    Rank that is best if there are no preferred rank statements.
    
    See Also:
    Constant Field Values
  - DEPRECATED_RANK
```
public static final String DEPRECATED_RANK
```
    Rank that isn't even considered best when there are no better statement. Its so bad you need to explicitly ask for things of this rank to get them.
    
    See Also:
    Constant Field Values
  - LABEL
```
public static final String LABEL
```
    Prefix for the label service. Not used in that data - just for SPARQL queries.
    
    See Also:
    Constant Field Values
  - WIKIGROUP
```
public static final String WIKIGROUP
```
    Prefix for wiki group.
    
    See Also:
    Constant Field Values
- Method Detail
  - prefix
```
public static StringBuilder prefix(StringBuilder query)
```
    Add prefix to a query.

Class Ontology

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NAMESPACE

OLD_NAMESPACE

ITEM

PROPERTY

STATEMENT

REFERENCE

VALUE

DUMP

RANK

BEST_RANK

PREFERRED_RANK

NORMAL_RANK

DEPRECATED_RANK

LABEL

WIKIGROUP

Method Detail

prefix