org.topbraid.spin.model

Interface Select

All Superinterfaces:

Command, CommandWithWhere, org.apache.jena.graph.FrontsNode, Printable, Query, org.apache.jena.rdf.model.RDFNode, org.apache.jena.rdf.model.Resource, SolutionModifierQuery

All Known Implementing Classes:

SelectImpl

public interface Select
extends SolutionModifierQuery

A SELECT query.

Author:

Holger Knublauch

Method Summary

Modifier and Type	Method and Description
List<String>	getResultVariableNames() Gets the names of all variables in the SELECT.
List<org.apache.jena.rdf.model.Resource>	getResultVariables() Deprecated. Note that this function returns an empty result if the query is represented using sp:text only. This means that it should not be used outside of SPIN RDF structures. Use #getResultVariableNames otherwise. This method will be made private in future versions.
boolean	isDistinct() Checks is this query has the DISTINCT flag set.
boolean	isReduced() Checks if this query has the REDUCED flag set.

Methods inherited from interface org.topbraid.spin.model.SolutionModifierQuery

getLimit, getOffset

Methods inherited from interface org.topbraid.spin.model.Query

getFrom, getFromNamed, getValues, getWhereElements

Methods inherited from interface org.topbraid.spin.model.CommandWithWhere

getWhere

Methods inherited from interface org.topbraid.spin.model.Command

getComment

Methods inherited from interface org.topbraid.spin.model.print.Printable

print

Methods inherited from interface org.apache.jena.rdf.model.Resource

abort, addLiteral, addLiteral, addLiteral, addLiteral, addLiteral, addLiteral, addLiteral, addProperty, addProperty, addProperty, addProperty, begin, commit, equals, getId, getLocalName, getNameSpace, getProperty, getProperty, getPropertyResourceValue, getRequiredProperty, getRequiredProperty, getURI, hasLiteral, hasLiteral, hasLiteral, hasLiteral, hasLiteral, hasLiteral, hasProperty, hasProperty, hasProperty, hasProperty, hasURI, inModel, listProperties, listProperties, listProperties, removeAll, removeProperties, toString

Methods inherited from interface org.apache.jena.rdf.model.RDFNode

as, asLiteral, asResource, canAs, getModel, isAnon, isLiteral, isResource, isURIResource, visitWith

Methods inherited from interface org.apache.jena.graph.FrontsNode

asNode

Method Detail

getResultVariableNames

List<String> getResultVariableNames()

Gets the names of all variables in the SELECT. Returns an empty List for SELECT *. List entries may be null if they are expressions only.

Returns:

a List of variable names

getResultVariables

List<org.apache.jena.rdf.model.Resource> getResultVariables()

Deprecated. Note that this function returns an empty result if the query is represented using sp:text only. This means that it should not be used outside of SPIN RDF structures. Use #getResultVariableNames otherwise. This method will be made private in future versions.

Gets a list of result variables, or an empty list if we have a star results list. Note that the "variables" may in fact be wrapped aggregations or expressions. The results can be tested with instanceof against Variable, Aggregation or FunctionCall. Variables can have an additional sp:expression, representing AS expressions.

Returns:

the result "variables"

isDistinct

boolean isDistinct()

Checks is this query has the DISTINCT flag set.

Returns:

true if distinct

isReduced

boolean isReduced()

Checks if this query has the REDUCED flag set.

Returns:

true if reduced