/*
* 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;
/* SAP contribution from Fergal Monaghan (m#)/May 2012 */
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.FmtLayout2HashSAP;
import com.hp.hpl.jena.sdb.sql.SAPStorageType;
import com.hp.hpl.jena.sdb.sql.SDBConnection;
import com.hp.hpl.jena.sdb.sql.SDBExceptionSQL;
public class FmtLayout2IndexSAP extends FmtLayout2HashSAP
{
public FmtLayout2IndexSAP(SDBConnection connection, SAPStorageType storageType)
{
super(connection, storageType) ;
}
@Override
protected void formatTableTriples()
{
dropTable(TableDescTriples.name()) ;
try {
connection().exec(sqlStr(
"CREATE " + storageType.getStorageName() + " TABLE "+TableDescTriples.name()+" (",
" s integer NOT NULL,",
" p integer NOT NULL,",
" o integer NOT NULL",
")"
)) ;
connection().exec(sqlStr("ALTER TABLE "+TableDescTriples.name()+" ADD 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 " + storageType.getStorageName() + " TABLE "+TableDescQuads.name()+" (",
" g integer NOT NULL,",
" s integer NOT NULL,",
" p integer NOT NULL,",
" o integer NOT NULL",
")"
)) ;
connection().exec(sqlStr("ALTER TABLE "+TableDescQuads.name()+" ADD 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 " + storageType.getStorageName() + " TABLE "+TableDescNodes.name()+" (",
" id INTEGER NOT NULL,",
" hash BIGINT NOT NULL,",
" lex nvarchar(5000) NOT NULL,",
" lang nvarchar(10) NOT NULL default '',",
" datatype nvarchar("+TableDescNodes.DatatypeUriLength+") NOT NULL default '',",
" type integer NOT NULL default '0'",
")"
)) ;
connection().exec(sqlStr ("ALTER TABLE "+TableDescNodes.name()+" ADD PRIMARY KEY (id)")) ;
// Urgh. How do we find out if a sequence exists?
connection().execSilent("DROP SEQUENCE nodeid");
connection().exec(sqlStr ("CREATE SEQUENCE nodeid",
"START WITH 1",
"INCREMENT BY 1",
"NO CYCLE"
));
connection().exec("CREATE UNIQUE INDEX Hash ON " + TableDescNodes.name() + " (hash)");
} catch (SQLException ex)
{
throw new SDBExceptionSQL("SQLException formatting table '"+TableDescNodes.name()+"'",ex) ;
}
}
}