/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 2008.
*
* Licensed under the Aduna BSD-style license.
*/
package org.openrdf.sail.rdbms.algebra;
import org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelVisitorBase;
import org.openrdf.sail.rdbms.algebra.base.SqlExpr;
import org.openrdf.sail.rdbms.algebra.base.UnarySqlOperator;
/**
* The SQL IS NULL expression.
*
* @author James Leigh
*
*/
public class SqlIsNull extends UnarySqlOperator {
public SqlIsNull(SqlExpr arg) {
super(arg);
}
@Override
public <X extends Exception> void visit(RdbmsQueryModelVisitorBase<X> visitor)
throws X
{
visitor.meet(this);
}
}