org.aksw.sparqlify.core.interfaces

Interface SqlTranslator

All Known Implementing Classes:

SqlTranslatorImpl, SqlTranslatorImpl2

public interface SqlTranslator

Interface for translating SPARQL expressions to SQL expressions.

Author:

raven

Method Summary

Methods

Modifier and Type	Method and Description
ExprSqlRewrite	translate(com.hp.hpl.jena.sparql.expr.Expr sparqlExpr, Map<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.expr.Expr> binding, Map<String,TypeToken> typeMap) We use the same Expr object for translating expressions.

Method Detail

translate

ExprSqlRewrite translate(com.hp.hpl.jena.sparql.expr.Expr sparqlExpr,
                       Map<com.hp.hpl.jena.sparql.core.Var,com.hp.hpl.jena.sparql.expr.Expr> binding,
                       Map<String,TypeToken> typeMap)

We use the same Expr object for translating expressions. The difference is, that variables are assumed to correspond to column names. This means, that the expr object has to be evaluated with different semantics.

Parameters:

sparqlExpr -

binding - A set of variable-expr mappings. May be null.

Returns: