| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.commons.math4.util; |
| |
| import java.util.EventListener; |
| |
| /** |
| * The listener interface for receiving events occurring in an iterative |
| * algorithm. |
| * |
| */ |
| public interface IterationListener extends EventListener { |
| /** |
| * Invoked after completion of the initial phase of the iterative algorithm |
| * (prior to the main iteration loop). |
| * |
| * @param e The {@link IterationEvent} object. |
| */ |
| void initializationPerformed(IterationEvent e); |
| |
| /** |
| * Invoked each time an iteration is completed (in the main iteration loop). |
| * |
| * @param e The {@link IterationEvent} object. |
| */ |
| void iterationPerformed(IterationEvent e); |
| |
| /** |
| * Invoked each time a new iteration is completed (in the main iteration |
| * loop). |
| * |
| * @param e The {@link IterationEvent} object. |
| */ |
| void iterationStarted(IterationEvent e); |
| |
| /** |
| * Invoked after completion of the operations which occur after breaking out |
| * of the main iteration loop. |
| * |
| * @param e The {@link IterationEvent} object. |
| */ |
| void terminationPerformed(IterationEvent e); |
| } |