ASK

An ASK query that returns true if the condition in the body is met by at least one result set.

• Class

AVG

Represents AVG aggregations.

• Class

Add

A SPARQL UPDATE ADD operation. Uses sp:source and sp:target to represent "from" and "to" graphs, respectively. Also sp:silent may be true.

• Class

Aggregation

Base class of aggregation types (not part of the SPARQL 1.0 standard but supported by ARQ and other engines).

• Class

all

Used in DROP and CLEAR.

• Property

Alt path

An alternative path with the union of sp:path1 and sp:path2.

• Class

arg

Abstract superproperty for the enumerated arg1, arg2 etc.

• Property

arg1

The first argument of a function call.

• Property

arg2

The second argument of a function call.

• Property

arg3

The third argument of a function call.

• Property

arg4

The forth argument of a function call.

• Property

arg5

The fifth argument of a function call. Further arguments are not common in SPARQL, therefore no sp:arg6, etc are defined here. However, they can be created if needed.

• Property

as

Points to a Variable used in an AS statement such as COUNT aggregates.

• Property

Asc

Marker to indicate ascending order.

• Class

Bind

A BIND element.

• Class

bindings

The actual bindings of a sp:Values element.

• Property

CONSTRUCT

A CONSTRUCT-type query that can be used to construct new triples from template triples (head) that use variable bindings from the match patterns (body).

• Class

COUNT

Counts the number of times a variable is used. The variable is stored in the variable property. This might be left blank to indicate COUNT(*).

• Class

Clear

An Update operation that removes all triples from a specified graph. Must specify the graph using sp:graphIRI, or sp:default, sp:named or sp:all. May have the SILENT flag, encoded using sp:silent.

• Class

Command

A shared superclass for sp:Query and sp:Update that can be used to specify that the range of property can be either one.

• Class

Create

An Update operation that creates a new empty graph with a name specified by sp:graphIRI. May have sp:silent set to true.

• Class

DESCRIBE

A DESCRIBE-type Query.

• Class

default

Used in DROP and CLEAR.

• Property

Delete

Deprecated - use sp:Modify instead. Represents a DELETE FROM (part of SPARQL UPDATE language). The graph IRIs are stored in sp:graphIRI. The template patterns to delete are stored in sp:deletePattern. The WHERE clause is represented using sp:where.

• Class
• DeprecatedClass

Delete data

An Update operation to delete specific triples. The graph triples are represented using sp:data, which points to an rdf:List of sp:Triples or sp:NamedGraphs.

• Class

delete pattern

Points to a list of sp:TripleTemplates and sp:NamedGraphs in a modify operation.

• Property

Delete where

An Update operation where the triples matched by the WHERE clause (sp:where) will be the triples deleted.

• Class

Desc

Marker to indicate descending order.

• Class

distinct

A marker property to indicate that a Select query is of type SELECT DISTINCT.

• Property

document

The URI of the document to load using a LOAD Update operation.

• Property

Drop

An Update operation that removes a specified graph from the Graph Store. Must specify the graph using sp:graphIRI, or sp:default, sp:named or sp:all. May have the SILENT flag, encoded using sp:silent.

• Class

Element

An abstract base class for all pattern elements.

• Class

Element group

Abstract base class of group patterns.

• Class

Element list

A list of Elements. This class is never instantiated directly as SPIN will use plain rdf:Lists to store element lists.

• Class

elements

Points to an ElementList, for example in an Optional element.

• Property

Exists

An EXISTS element group.

• Class

expression

Points to an expression, for example in a Filter or Assignment.

• Property

Filter

A constraint element that evaluates a given expression to true or false.

• Class

from

Specifies an RDF Dataset used by a Query (FROM syntax in SPARQL). Values of this property must be URI resources.

• Property

from named

Specifies a named RDF Dataset used by a Query (FROM NAMED syntax in SPARQL). Values of this property must be URI resources.

• Property

GROUP_CONCAT

Represents GROUP_CONCAT aggregations.

• Class

graph IRI

Points to graph names (IRIs) in various sp:Update operations.

• Property

graph name node

The name (URI or Variable) of a NamedGraph.

• Property

group by

Points from a Query to the list of GROUP BY expressions.

• Property

having

Points from a SELECT query to a list of HAVING expressions.

• Property

Insert

Deprecated - use sp:Modify instead. Represents a INSERT INTO (part of SPARQL UPDATE language). The graph IRIs are stored in sp:graphIRI. The template patterns to delete are stored in sp:insertPattern. The WHERE clause is represented using sp:where.

• Class
• DeprecatedClass

Insert data

An Update operation to insert specific triples. The graph triples are represented using sp:data, which points to an rdf:List of sp:Triples or sp:NamedGraphs.

• Class

insert pattern

Points to a list of sp:TripleTemplates or sp:NamedGraphs in a modify command.

• Property

into

The (optional) target of a LOAD Update operation.

• Property

Let

Deprecated: use sp:Bind instead. A variable assignment (LET (?<varName> := <expression>)). Not part of the SPARQL 1.0 standard, but (for example) ARQ.

• Class
• DeprecatedClass

limit

The LIMIT solution modifier of a Query.

• Property

Load

A LOAD Update operation. The document to load is specified using sp:document, and the (optional) target graph using sp:into.

• Class

MAX

Represents MAX aggregations.

• Class

MIN

Represents MIN aggregations.

• Class

Minus

A MINUS element group.

• Class

mod max

• Property

mod min

• Property

Mod path

A modified path such as rdfs:subClassOf*.

• Class

Modify

Represents a MODIFY (part of SPARQL UPDATE language). The graph IRIs are stored in sp:graphIRI. The template patterns are stored in sp:deletePattern and sp:insertPattern. The WHERE clause is represented using sp:where.

• Class

named

Used in DROP and CLEAR.

• Property

Named graph

A named Graph element such as GRAPH <uri> {...}.

• Class

node

• Property

Not exists

A NOT EXISTS element group.

• Class

object

An RDF Node or Variable describing the object of a triple.

• Property

offset

The OFFSET solution modifier of a Query.

• Property

Optional

An optional element in a query.

• Class

order by

Links a query with an ORDER BY clause where the values are rdf:List containing OrderByConditions or expressions. While the domain of this property is sp:Query, only Describe and Select queries can have values of it.

• Property

Order by condition

An abstract base class for ascending or descending order conditions. Instances of this class (typically bnodes) must have a value for expression to point to the actual values.

• Class

Path

The base class of SPARQL property path expressions. Paths are used by sp:TriplePath triple paths.

• Class

path

Points from a TriplePath to its path.

• Property

path1

The first child path of a property path. Used by sp:AltPath and sp:SeqPath.

• Property

path2

The second child path of a property path. Used by sp:AltPath and sp:SeqPath.

• Property

predicate

A resource or Variable describing the predicate of a triple.

• Property

Query

Abstract base class of the various types of supported queries. Common to all types of queries is that they can have a body ("WHERE clause").

• Class

query

Links a SubQuery resource with the nested Query.

• Property

reduced

A property with true to indicate that a Select query has a REDUCED flag.

• Property

result nodes

Contains the result nodes (URI resources or Variables) of a Describe query.

• Property

result variables

An rdf:List of variables that are returned by a Select query.

• Property

Reverse link path

• Class

Reverse path

A path with reversed direction.

• Class

SAMPLE

Represents SAMPLE aggregations

• Class

SELECT

A SELECT-type query that returns variable bindings as its result.

• Class

SP System class

An "artificial" root class that groups all SP classes. This makes them look much less overwhelming in UI tools. Typical end users don't need to see those classes anyway.

• Class

SP system property

An abstract base proprerty that groups together the SP system properties. Users typically don't need to see them anyway.

• Property

SPIN SPARQL Syntax

An RDF schema to syntactically represent SPARQL queries and update commands as RDF triples.

• Ontology

SUM

Represents sum aggregations, e.g. SELECT SUM(?varName)...

• Class

separator

Stores the separator="..." value of a GROUP_CONCAT (sp:GroupConcat) aggregation.

• Property

Seq path

A sequence of multiple paths.

• Class

Service

A SERVICE call that matches a nested sub-pattern against a SPARQL end point specified by a URI.

• Class

service URI

Used by sp:Service to specify the URI of the SPARQL end point to invoke. Must point to a URI node.

• Property

silent

• Property

source

• Property

sub path

The child path of a property path expression. This is used by ReversePath and ModPath.

• Property

Sub query

A nested SELECT query inside of an element list. The query is stored in sp:query.

• Class

subject

A resource or Variable describing the subject of a triple.

• Property

target

• Property

templates

Points to a list of TripleTemplates that form the head of a Construct query.

• Property

text

Can be attached to sp:Queries to store a textual representation of the query. This can be useful for tools that do not have a complete SPIN Syntax parser available.

• Property

Triple

A base class for TriplePattern and TripleTemplate. This basically specifies that subject, predicate and object must be present.

• Class

Triple path

Similar to a TriplePattern, but with a path expression as its predicate. For example, this can be used to express transitive sub-class relationships (?subClass rdfs:subClassOf* ?superClass).

• Class

Triple pattern

A triple pattern used in the body of a query.

• Class

Triple template

A prototypical triple used as template in the head of a Construct query. May contain variables.

• Class

Tuple

Abstract base class for things that have subject and object.

• Class

Union

A UNION group.

• Class

Update

Abstract base class to group the various SPARQL UPDATE commands.

• Class

using

• Property

using named

• Property

Values

A VALUES element. sp:varNames points to an rdf:List of strings for the variables, sp:values to an rdf:List of rdf:Lists with nodes for each variable, in the order defined by the variables list.

• Class

values

The VALUES block at the end of a query. The object may just be an untyped blank node, i.e. the sp:Values type triple is optional.

• Property

var names

The names of the variables (xsd:strings) of the variables declared for a VALUES element.

• Property

varName

The name of a Variable.

• Property

Variable

A variable mentioned in a Triple or expression. Variables are often blank nodes with the variable name stored in ts:name. Variables can also be supplied with a URI in which case the system will attempt to reuse the same variable instance across multiple query definitions.

• Class

variable

The variable of a Bind element.

• Property

where

The WHERE clause of a Query.

• Property

with

• Property