Module org.apache.jena.arq

Package org.apache.jena.query

Interface QuerySolution

All Known Implementing Classes:

QuerySolutionBase, QuerySolutionMap, ResultBinding

public interface QuerySolution

A single answer from a SELECT query.

Method Summary

Modifier and Type	Method	Description
boolean	contains(String varName)	Return true if the named variable is in this binding
RDFNode	get(String varName)	Return the value of the named variable in this binding.
Literal	getLiteral(String varName)	Return the value of the named variable in this binding, casting to a Literal.
Resource	getResource(String varName)	Return the value of the named variable in this binding, casting to a Resource.
Iterator<String>	varNames()	Iterate over the variable names (strings) in this QuerySolution.

Method Details

get

RDFNode get(String varName)

Return the value of the named variable in this binding. A return of null indicates that the variable is not present in this solution.

Parameters:

varName -

Returns:

RDFNode

getResource

Resource getResource(String varName)

Return the value of the named variable in this binding, casting to a Resource. A return of null indicates that the variable is not present in this solution. An exception indicates it was present but not a resource.

Parameters:

varName -

Returns:

Resource

getLiteral

Literal getLiteral(String varName)

Return the value of the named variable in this binding, casting to a Literal. A return of null indicates that the variable is not present in this solution. An exception indicates it was present but not a literal.

Parameters:

varName -

Returns:

Resource

contains

boolean contains(String varName)

Return true if the named variable is in this binding

varNames

Iterator<String> varNames()

Iterate over the variable names (strings) in this QuerySolution.

Returns:

Iterator of strings