/*
* 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.TablePrefixes;
import com.hp.hpl.jena.sdb.layout2.hash.FmtLayout2HashOracle;
import com.hp.hpl.jena.sdb.sql.SDBConnection;
import com.hp.hpl.jena.sdb.sql.SDBExceptionSQL;
public class FmtLayout2IndexOracle extends FmtLayout2HashOracle
{
public FmtLayout2IndexOracle(SDBConnection connection)
{
super(connection) ;
}
@Override
protected void formatTableTriples()
{
dropTable(TableDescTriples.name()) ;
try {
connection().exec(sqlStr(
"CREATE TABLE "+TableDescTriples.name()+" (",
" s INT NOT NULL,",
" p INT NOT NULL,",
" o INT 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 INT NOT NULL,",
" s INT NOT NULL,",
" p INT NOT NULL,",
" o INT 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 int NOT NULL ,",
" hash NUMBER(20) NOT NULL,",
" lex NCLOB,", // No NOT NULL on char data in Oracle. '' is NULL!
" lang NVARCHAR2(10),",
" datatype NVARCHAR2("+TableDescNodes.DatatypeUriLength+"),",
" type integer NOT NULL,",
" PRIMARY KEY (id)",
")"
)) ;
//connection().exec("CREATE UNIQUE INDEX Hash ON " + TableNodes.tableName + " (hash)");
// 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",
"CACHE 5000",
"NOCYCLE"
));
} catch (SQLException ex)
{
throw new SDBExceptionSQL("SQLException resetting table '"+TableDescNodes.name()+"'",ex) ;
}
}
@Override
protected void formatTablePrefixes()
{
dropTable(TablePrefixes.name()) ;
try {
connection().exec(sqlStr(
"CREATE TABLE "+TablePrefixes.name()+" (",
" prefix VARCHAR("+TablePrefixes.prefixColWidth+") ,",
" uri VARCHAR("+TablePrefixes.uriColWidth+") ,",
" PRIMARY KEY (prefix)",
")"
)) ;
} catch (SQLException ex)
{
throw new SDBExceptionSQL("SQLException resetting table '"+TablePrefixes.name()+"'",ex) ;
}
}
}