/*
 * Encog(tm) Core v3.4 - Java Version
 * http://www.heatonresearch.com/encog/
 * https://github.com/encog/encog-java-core
 
 * Copyright 2008-2016 Heaton Research, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *   
 * For more information on Heaton Research copyrights, licenses 
 * and trademarks visit:
 * http://www.heatonresearch.com/copyright
 */
package org.encog.util.normalize.output;

import java.io.Serializable;
import java.util.Collection;

/**
 * Output fields can be grouped together if they are calculated together.
 * This interface defines how a field group works.
 *
 */
public interface OutputFieldGroup extends Serializable {
	
	/**
	 * Add an output field to the group.
	 * @param field The field to add.
	 */
	void addField(OutputFieldGrouped field);

	/**
	 * @return All of the output fields in this group.
	 */
	Collection getGroupedFields();

	/**
	 * Init the group for a new row.
	 */
	void rowInit();
}