package net.sourceforge.squirrel_sql.plugins.oracle.expander;
/*
* Copyright (C) 2002 Colin Bell
* colbell@users.sourceforge.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.squirrel_sql.fw.sql.DatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.DatabaseObjectType;
import net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.ISQLConnection;
import net.sourceforge.squirrel_sql.fw.sql.SQLDatabaseMetaData;
import net.sourceforge.squirrel_sql.client.session.ISession;
import net.sourceforge.squirrel_sql.client.session.schemainfo.ObjFilterMatcher;
import net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.INodeExpander;
import net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.ObjectTreeNode;
/**
* This class handles the expanding of the "Sequence Group"
* node. It will give a list of all the Sequences available in the schema.
*
* @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
*/
public class SequenceParentExpander implements INodeExpander
{
/** SQL used to load info about sequences. */
private static final String SQL =
"select sequence_name"
+ " from all_sequences"
+ " where sequence_owner = ?"
+ " and sequence_name like ?";
/**
* Default ctor.
*/
public SequenceParentExpander()
{
super();
}
/**
* Create the child nodes for the passed parent node and return them. Note
* that this method should <B>not</B> actually add the child nodes to the
* parent node as this is taken care of in the caller.
*
* @param session Current session.
* @param node Node to be expanded.
*
* @return A list of <TT>ObjectTreeNode</TT> objects representing the child
* nodes for the passed node.
*/
public List<ObjectTreeNode> createChildren(ISession session, ObjectTreeNode parentNode)
throws SQLException
{
final List<ObjectTreeNode> childNodes = new ArrayList<ObjectTreeNode>();
final IDatabaseObjectInfo parentDbinfo = parentNode.getDatabaseObjectInfo();
final ISQLConnection conn = session.getSQLConnection();
final SQLDatabaseMetaData md = session.getSQLConnection().getSQLMetaData();
final String catalogName = parentDbinfo.getCatalogName();
final String schemaName = parentDbinfo.getSchemaName();
ObjFilterMatcher filterMatcher = new ObjFilterMatcher(session.getProperties());
final PreparedStatement pstmt = conn.prepareStatement(SQL);
try
{
pstmt.setString(1, schemaName);
pstmt.setString(2, filterMatcher.getSqlLikeMatchString());
ResultSet rs = pstmt.executeQuery();
try
{
while (rs.next())
{
IDatabaseObjectInfo si = new DatabaseObjectInfo(catalogName,
schemaName, rs.getString(1),
DatabaseObjectType.SEQUENCE, md);
if(filterMatcher.matches(si.getSimpleName()))
{
childNodes.add(new ObjectTreeNode(session, si));
}
}
}
finally
{
rs.close();
}
}
finally
{
pstmt.close();
}
return childNodes;
}
}