org.aksw.sparqlify.algebra.sql.nodes

Class SqlOpFilterExpr

java.lang.Object

org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase1

org.aksw.sparqlify.algebra.sql.nodes.SqlOpFilterExpr

All Implemented Interfaces:

SqlOp

public class SqlOpFilterExpr
extends SqlOpBase1

A maybe hacky filter that allows SQL ops to be constrained by SPARQL expressions. Basically the idea was to reuse the SPARQL expr stack rather than to create it again for SQL.

Author:

raven

Field Summary

Fields inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase1

subOp

Fields inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

schema

Constructor Summary

Constructors

Constructor and Description
SqlOpFilterExpr(Schema schema, SqlOp subOp, com.hp.hpl.jena.sparql.expr.Expr expr)
SqlOpFilterExpr(Schema schema, SqlOp subOp, List<com.hp.hpl.jena.sparql.expr.Expr> exprs)

Method Summary

Methods

Modifier and Type	Method and Description
static SqlOpFilterExpr	create(SqlOp op, List<com.hp.hpl.jena.sparql.expr.Expr> exprs)
static SqlOp	createIfNeeded(SqlOp op, List<com.hp.hpl.jena.sparql.expr.Expr> exprs)
List<com.hp.hpl.jena.sparql.expr.Expr>	getExprs()
boolean	isEmpty()
void	write(org.apache.jena.atlas.io.IndentedWriter writer)

Methods inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase1

getSubOp, getSubOps

Methods inherited from class org.aksw.sparqlify.algebra.sql.nodes.SqlOpBase

copy, getSchema, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SqlOpFilterExpr

public SqlOpFilterExpr(Schema schema,
               SqlOp subOp,
               com.hp.hpl.jena.sparql.expr.Expr expr)

SqlOpFilterExpr

public SqlOpFilterExpr(Schema schema,
               SqlOp subOp,
               List<com.hp.hpl.jena.sparql.expr.Expr> exprs)

Method Detail

getExprs

public List<com.hp.hpl.jena.sparql.expr.Expr> getExprs()

createIfNeeded

public static SqlOp createIfNeeded(SqlOp op,
                   List<com.hp.hpl.jena.sparql.expr.Expr> exprs)

create

public static SqlOpFilterExpr create(SqlOp op,
                     List<com.hp.hpl.jena.sparql.expr.Expr> exprs)

write

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

Specified by:

write in interface SqlOp

Overrides:

write in class SqlOpBase

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface SqlOp

Overrides:

isEmpty in class SqlOpBase1