org.aksw.sparqlify.algebra.sql.exprs2

Class S_Jena

java.lang.Object

org.aksw.sparqlify.algebra.sql.exprs2.SqlExprBase

org.aksw.sparqlify.algebra.sql.exprs2.S_Jena

All Implemented Interfaces:

SqlExpr

public class S_Jena
extends SqlExprBase

A wrapper for a Jena expression. I guess wrapping Jena expressions in our object structure is the best way to enable optimizations on both levels. Of course, this implies that we need to be able to convert from our structure back to Jena expressions.

Author:

Claus Stadler

Field Summary

Fields inherited from class org.aksw.sparqlify.algebra.sql.exprs2.SqlExprBase

datatype

Constructor Summary

Constructors

Constructor and Description
S_Jena(TypeToken datatype)

Method Summary

Methods

Modifier and Type	Method and Description
<T> T	accept(SqlExprVisitor<T> visitor)
void	asString(org.apache.jena.atlas.io.IndentedWriter writer)
List<SqlExpr>	getArgs()
com.hp.hpl.jena.sparql.expr.Expr	getExpr()
SqlExprType	getType()

Methods inherited from class org.aksw.sparqlify.algebra.sql.exprs2.SqlExprBase

_getColumnsMentioned, asConstant, asFunction, asVariable, equals, getColumnsMentioned, getDatatype, hashCode, isConstant, isFunction, isVariable, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

S_Jena

public S_Jena(TypeToken datatype)

Method Detail

getExpr

public com.hp.hpl.jena.sparql.expr.Expr getExpr()

asString

public void asString(org.apache.jena.atlas.io.IndentedWriter writer)

getArgs

public List<SqlExpr> getArgs()

getType

public SqlExprType getType()

accept

public <T> T accept(SqlExprVisitor<T> visitor)