UDTTypeExpander.java example

package net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.expanders;
/*
 * Copyright (C) 2002 Colin Bell and Johan Compagner
 * colbell@users.sourceforge.net
 * jcompagner@j-com.nl
 *
 * 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.SQLException;
import java.util.ArrayList;
import java.util.List;

import net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.ISQLConnection;
import net.sourceforge.squirrel_sql.fw.sql.IUDTInfo;

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 a UDT Type node. It will build all the
 * UDTs.
 *
 * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
 */
public class UDTTypeExpander implements INodeExpander
{
	/**
	 * 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 String catalogName = parentDbinfo.getCatalogName();
		final String schemaName = parentDbinfo.getSchemaName();

      ObjFilterMatcher filterMatcher = new ObjFilterMatcher(session.getProperties());

      IUDTInfo[] udts =
         conn.getSQLMetaData().getUDTs(catalogName, schemaName, filterMatcher.getSqlLikeMatchString(), null);

		for (int i = 0; i < udts.length; ++i)
		{
         if(filterMatcher.matches(udts[i].getSimpleName()))
         {
            ObjectTreeNode child = new ObjectTreeNode(session, udts[i]);
            childNodes.add(child);
         }
      }

		return childNodes;
	}
}