/**
* DataCleaner (community edition)
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.datacleaner.job.builder;
import org.datacleaner.api.InputColumn;
/**
* Listener interface for receiving notifications when source columns are being
* added or removed from the job.
*
* Note that other columns than source columns may be of interest since
* transformers generate virtual columns as well. Use a
* TransformerChangeListener to receive notifications about such columns.
*
* @see TransformerChangeListener
*
*
*/
public interface SourceColumnChangeListener {
void onAdd(InputColumn<?> sourceColumn);
void onRemove(InputColumn<?> sourceColumn);
}