Package com.hp.hpl.jena.sdb.layout2.index

Source Code of com.hp.hpl.jena.sdb.layout2.index.FmtLayout2IndexPGSQL

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package com.hp.hpl.jena.sdb.layout2.index;

import static com.hp.hpl.jena.sdb.sql.SQLUtils.sqlStr;

import java.sql.SQLException;

import com.hp.hpl.jena.sdb.layout2.TableDescNodes;
import com.hp.hpl.jena.sdb.layout2.TableDescQuads;
import com.hp.hpl.jena.sdb.layout2.TableDescTriples;
import com.hp.hpl.jena.sdb.layout2.hash.FmtLayout2HashPGSQL;
import com.hp.hpl.jena.sdb.sql.SDBConnection;
import com.hp.hpl.jena.sdb.sql.SDBExceptionSQL;


public class FmtLayout2IndexPGSQL extends FmtLayout2HashPGSQL
{
    public FmtLayout2IndexPGSQL(SDBConnection connection)
    {
        super(connection) ;
    }

    @Override
    protected void formatTableTriples()
    {
        dropTable(TableDescTriples.name()) ;
        try {
            connection().exec(sqlStr(
                                 "CREATE TABLE "+TableDescTriples.name()+" (",
                                 "    s integer NOT NULL,",
                                 "    p integer NOT NULL,",
                                 "    o integer NOT NULL,",
                                 "    PRIMARY KEY (s, p, o)",
                                 ")"               
                    )) ;
        } catch (SQLException ex)
        { throw new SDBExceptionSQL("SQLException formatting table '"+TableDescTriples.name()+"'",ex) ; }
    }
   
    @Override
    protected void formatTableQuads()
    {
        dropTable(TableDescQuads.name()) ;
        try {
            connection().exec(sqlStr(
                                 "CREATE TABLE "+TableDescQuads.name()+" (",
                                 "    g integer NOT NULL,",
                                 "    s integer NOT NULL,",
                                 "    p integer NOT NULL,",
                                 "    o integer NOT NULL,",
                                 "    PRIMARY KEY (g, s, p, o)",
                                 ")"               
                    )) ;
        } catch (SQLException ex)
        { throw new SDBExceptionSQL("SQLException formatting table '"+TableDescTriples.name()+"'",ex) ; }
    }
   
    @Override
    protected void formatTableNodes()
    {
        dropTable(TableDescNodes.name()) ;
        try {
            connection().exec(sqlStr ("CREATE TABLE "+TableDescNodes.name()+" (",
                                       "   id SERIAL,",
                                       "   hash BIGINT NOT NULL,",
                                       "   lex TEXT NOT NULL,",
                                       "   lang varchar NOT NULL default '',",
                                       "   datatype varchar("+TableDescNodes.DatatypeUriLength+") NOT NULL default '',",
                                       "   type integer NOT NULL default '0',",
                                       "   PRIMARY KEY (id)",
                                       ")"
                    )) ;
            connection().exec("CREATE UNIQUE INDEX Hash ON " + TableDescNodes.name() + " (hash)");
        } catch (SQLException ex)
        {
            throw new SDBExceptionSQL("SQLException formatting table '"+TableDescNodes.name()+"'",ex) ;
        }
    }
}
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