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.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 an Oracle specific object type node.
*
* @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
*/
public class ObjectTypeExpander implements INodeExpander
{
/** SQL that retrieves the objects for the object types. */
private static String SQL =
"select object_name from sys.all_objects where object_type = ?" +
" and owner = ? and object_name like ? order by object_name";
/** Type of the objects to be displayed in the child nodes. */
private ObjectType _objectType;
/**
* Ctor.
*
* @param objectType Object type to be displayed.
*
* @throws IllegalArgumentException
* Thrown if <TT>null</TT> objectType passed.
*/
ObjectTypeExpander(ObjectType objectType)
{
super();
if (objectType == null)
{
throw new IllegalArgumentException("ObjectType == null");
}
_objectType = objectType;
}
/**
* 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 String catalogName = parentDbinfo.getCatalogName();
final String schemaName = parentDbinfo.getSchemaName();
childNodes.addAll(createNodes(session, catalogName, schemaName));
return childNodes;
}
private List<ObjectTreeNode> createNodes(ISession session, String catalogName,
String schemaName)
throws SQLException
{
final ISQLConnection conn = session.getSQLConnection();
final SQLDatabaseMetaData md = conn.getSQLMetaData();
final List<ObjectTreeNode> childNodes = new ArrayList<ObjectTreeNode>();
ObjFilterMatcher filterMatcher = new ObjFilterMatcher(session.getProperties());
// Add node for each object.
PreparedStatement pstmt = conn.prepareStatement(SQL);
try
{
pstmt.setString(1, _objectType._objectTypeColumnData);
pstmt.setString(2, schemaName);
pstmt.setString(3, filterMatcher.getSqlLikeMatchString());
ResultSet rs = pstmt.executeQuery();
try
{
while (rs.next())
{
IDatabaseObjectInfo dbinfo = new DatabaseObjectInfo(catalogName,
schemaName, rs.getString(1),
_objectType._childDboType, md);
if(filterMatcher.matches(dbinfo.getSimpleName()))
{
childNodes.add(new ObjectTreeNode(session, dbinfo));
}
}
}
finally
{
rs.close();
}
}
finally
{
pstmt.close();
}
return childNodes;
}
}