/*
* Copyright (C) 2003-2010 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.jcr.impl.storage.jdbc.optimisation.db;
import org.exoplatform.services.jcr.impl.storage.jdbc.JDBCDataContainerConfig;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* Created by The eXo Platform SAS
* Author : Nicolas Filotto
* nicolas.filotto@exoplatform.com
* 19 mars 2010
*/
public class OracleMultiDbJDBCConnection extends MultiDbJDBCConnection
{
/**
* Oracle Multidatabase JDBC Connection constructor.
*
* @param dbConnection
* JDBC connection, should be opened before
* @param readOnly
* boolean if true the dbConnection was marked as READ-ONLY.
* @param containerConfig
* Workspace Storage Container configuration
*/
public OracleMultiDbJDBCConnection(Connection dbConnection, boolean readOnly, JDBCDataContainerConfig containerConfig)
throws SQLException
{
super(dbConnection, readOnly, containerConfig);
}
/**
* {@inheritDoc}
*/
@Override
protected void prepareQueries() throws SQLException
{
super.prepareQueries();
FIND_NODES_BY_PARENTID_CQ_QUERY =
super.FIND_NODES_BY_PARENTID_CQ_QUERY.replaceFirst("select", "select /*+ INDEX(I " + JCR_IDX_ITEM_PARENT_ID
+ ") INDEX(P " + JCR_IDX_ITEM_PARENT_ID + ") INDEX(V " + JCR_IDX_VALUE_PROPERTY + ")*/");
FIND_PROPERTIES_BY_PARENTID_CQ_QUERY =
super.FIND_PROPERTIES_BY_PARENTID_CQ_QUERY.replaceFirst("select", "select /*+ INDEX(I "
+ JCR_IDX_ITEM_PARENT_ID + ") INDEX(V " + JCR_IDX_VALUE_PROPERTY + ")*/");
FIND_ITEM_QPATH_BY_ID_CQ_QUERY =
super.FIND_ITEM_QPATH_BY_ID_CQ_QUERY.replaceFirst("SELECT", "SELECT /*+ INDEX(" + JCR_ITEM + " " + JCR_PK_ITEM
+ ") */");
FIND_NODES_BY_PARENTID_CQ = FIND_NODES_BY_PARENTID_CQ_QUERY;
FIND_PROPERTIES_BY_PARENTID_CQ = FIND_PROPERTIES_BY_PARENTID_CQ_QUERY;
FIND_ITEM_QPATH_BY_ID_CQ = FIND_ITEM_QPATH_BY_ID_CQ_QUERY;
FIND_PROPERTIES_BY_PARENTID_AND_PATTERN_CQ_TEMPLATE =
"select /*+ INDEX(I " + JCR_FK_ITEM_PARENT + ") INDEX(V " + JCR_IDX_VALUE_PROPERTY + ")*/"
+ " I.ID, I.PARENT_ID, I.NAME, I.VERSION, I.I_CLASS, I.I_INDEX, I.N_ORDER_NUM, I.P_TYPE, I.P_MULTIVALUED,"
+ " V.ORDER_NUM, V.DATA, V.STORAGE_DESC from " + JCR_ITEM + " I LEFT OUTER JOIN " + JCR_VALUE
+ " V ON (V.PROPERTY_ID=I.ID)";
FIND_NODES_AND_PROPERTIES =
"select J.*, P.ID AS P_ID, P.NAME AS P_NAME, P.VERSION AS P_VERSION, P.P_TYPE, P.P_MULTIVALUED,"
+ " V.DATA, V.ORDER_NUM, V.STORAGE_DESC from " + JCR_VALUE + " V, " + JCR_ITEM + " P"
+ " join ( select * from ( select A.*, ROWNUM r__ from ("
+ " select I.ID, I.PARENT_ID, I.NAME, I.VERSION, I.I_INDEX, I.N_ORDER_NUM from " + JCR_ITEM + " I "
+ " where I.I_CLASS=1 order by I.ID) A where ROWNUM <= ?) where r__ > ?) J on P.PARENT_ID = J.ID"
+ " where P.I_CLASS=2 and V.PROPERTY_ID=P.ID order by J.ID";
if (containerConfig.useSequenceForOrderNumber)
{
FIND_NODES_BY_PARENTID_LAZILY_CQ =
"select /*+ USE_NL(V) INDEX(I "
+ JCR_IDX_ITEM_N_ORDER_NUM + ") INDEX(P " + JCR_IDX_ITEM_PARENT_FK + ") INDEX(V " + JCR_IDX_VALUE_PROPERTY + ") */"
+ " I.*, P.NAME AS PROP_NAME, V.ORDER_NUM, V.DATA from " + JCR_VALUE + " V, " + JCR_ITEM + " P "
+ " join ( select * from ( select A.*, ROWNUM r__ from ( select J.* from " + JCR_ITEM + " J "
+ " where J.I_CLASS=1 and J.PARENT_ID=? order by J.N_ORDER_NUM, J.ID "
+ " ) A where ROWNUM <= ?) where r__ > ?) I on P.PARENT_ID = I.ID"
+ " where P.I_CLASS=2 and P.PARENT_ID=I.ID and"
+ " (P.NAME='[http://www.jcp.org/jcr/1.0]primaryType' or"
+ " P.NAME='[http://www.jcp.org/jcr/1.0]mixinTypes' or"
+ " P.NAME='[http://www.exoplatform.com/jcr/exo/1.0]owner' or"
+ " P.NAME='[http://www.exoplatform.com/jcr/exo/1.0]permissions')"
+ " and V.PROPERTY_ID=P.ID order by I.N_ORDER_NUM, I.ID";
FIND_LAST_ORDER_NUMBER = "SELECT " + JCR_ITEM_NEXT_VAL + " ('" + JCR_ITEM_SEQ + "', ?, ?) FROM dual";
}
else
{
FIND_NODES_BY_PARENTID_LAZILY_CQ =
FIND_NODES_BY_PARENTID_LAZILY_CQ.replaceFirst("select", "select /*+ USE_NL(V) INDEX(I "
+ JCR_IDX_ITEM_N_ORDER_NUM + ") INDEX(P " + JCR_IDX_ITEM_PARENT_FK + ") INDEX(V " + JCR_IDX_VALUE_PROPERTY
+ ") */");
}
FIND_REFERENCES = FIND_REFERENCES.replaceFirst("select", "select /*+ INDEX(R " + JCR_PK_REF + ")*/");
FIND_PROPERTIES_BY_PARENTID =
FIND_PROPERTIES_BY_PARENTID.replaceFirst("select", "select /*+ INDEX(" + JCR_ITEM + " "
+ JCR_IDX_ITEM_PARENT_NAME + ")*/");
FIND_ITEM_BY_NAME = FIND_ITEM_BY_NAME.replaceFirst("select", "select /*+ INDEX(I " + JCR_IDX_ITEM_PARENT + ") */");
FIND_NODE_MAIN_PROPERTIES_BY_PARENTID_CQ =
FIND_NODE_MAIN_PROPERTIES_BY_PARENTID_CQ.replaceFirst("select",
"select /*+ INDEX(I " + JCR_IDX_ITEM_PARENT_NAME + ") */");
DELETE_ITEM = "delete /*+ INDEX(I " + JCR_PK_ITEM + ")*/ from " + JCR_ITEM + " I where I.ID=?";
}
/**
* {@inheritDoc}
*/
@Override
protected ResultSet findNodesAndProperties(String lastNodeId, int offset, int limit) throws SQLException
{
if (findNodesAndProperties == null)
{
findNodesAndProperties = dbConnection.prepareStatement(FIND_NODES_AND_PROPERTIES);
}
else
{
findNodesAndProperties.clearParameters();
}
findNodesAndProperties.setInt(1, offset + limit);
findNodesAndProperties.setInt(2, offset);
return findNodesAndProperties.executeQuery();
}
/**
* {@inheritDoc}
*/
@Override
protected ResultSet findChildNodesByParentIdentifier(String parentCid, int fromOrderNum, int offset, int limit)
throws SQLException
{
if (!containerConfig.useSequenceForOrderNumber)
{
return super.findChildNodesByParentIdentifier(parentCid, fromOrderNum, offset, limit);
}
if (findNodesByParentIdLazilyCQ == null)
{
findNodesByParentIdLazilyCQ = dbConnection.prepareStatement(FIND_NODES_BY_PARENTID_LAZILY_CQ);
}
else
{
findNodesByParentIdLazilyCQ.clearParameters();
}
findNodesByParentIdLazilyCQ.setString(1, parentCid);
findNodesByParentIdLazilyCQ.setInt(2, offset + limit);
findNodesByParentIdLazilyCQ.setInt(3, offset);
return findNodesByParentIdLazilyCQ.executeQuery();
}
}