/*
* 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.hash;
import static com.hp.hpl.jena.sdb.sql.SQLUtils.sqlStr;
import java.sql.SQLException;
import com.hp.hpl.jena.sdb.layout2.FmtLayout2;
import com.hp.hpl.jena.sdb.layout2.TableDescNodes;
import com.hp.hpl.jena.sdb.layout2.TableDescQuads;
import com.hp.hpl.jena.sdb.layout2.TablePrefixes;
import com.hp.hpl.jena.sdb.layout2.TableDescTriples;
import com.hp.hpl.jena.sdb.sql.SDBConnection;
import com.hp.hpl.jena.sdb.sql.SDBExceptionSQL;
public class FmtLayout2HashDB2 extends FmtLayout2
{
public FmtLayout2HashDB2(SDBConnection connection)
{
super(connection) ;
}
@Override
protected void formatTableTriples()
{
dropTable(TableDescTriples.name()) ;
try {
connection().exec(sqlStr(
"CREATE TABLE "+TableDescTriples.name()+" (",
" s BIGINT NOT NULL,",
" p BIGINT NOT NULL,",
" o BIGINT 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 BIGINT NOT NULL,",
" s BIGINT NOT NULL,",
" p BIGINT NOT NULL,",
" o BIGINT 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 generated always as identity ,",
" hash BIGINT NOT NULL,",
" lex CLOB NOT NULL,",
" lang VARCHAR(10),",
" datatype VARCHAR("+TableDescNodes.DatatypeUriLength+"),",
" type INTEGER NOT NULL,",
" PRIMARY KEY (hash)",
") CCSID UNICODE"
)) ;
} 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+") NOT NULL,",
" uri VARCHAR("+TablePrefixes.uriColWidth+") ,",
" PRIMARY KEY (prefix)",
")"
)) ;
} catch (SQLException ex)
{
throw new SDBExceptionSQL("SQLException resetting table '"+TablePrefixes.name()+"'",ex) ;
}
}
/* Use truncate */
@Override
protected void truncateTable(String tableName)
{
try {
//Truncate doesnt work for db2 - have to do kludgy delete from
connection().exec("DELETE FROM "+tableName) ;
} catch (SQLException ex)
{ throw new SDBExceptionSQL("SQLException truncating table: "+tableName,ex) ; }
}
}