1dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond/* 2dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Licensed to the Apache Software Foundation (ASF) under one or more 3dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * contributor license agreements. See the NOTICE file distributed with 4dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * this work for additional information regarding copyright ownership. 5dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * The ASF licenses this file to You under the Apache License, Version 2.0 6dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * (the "License"); you may not use this file except in compliance with 7dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * the License. You may obtain a copy of the License at 8dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 9dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * http://www.apache.org/licenses/LICENSE-2.0 10dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 11dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Unless required by applicable law or agreed to in writing, software 12dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * distributed under the License is distributed on an "AS IS" BASIS, 13dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * See the License for the specific language governing permissions and 15dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * limitations under the License. 16dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 17dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 18dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondpackage org.apache.commons.math.linear; 19dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 20dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondimport org.apache.commons.math.FieldElement; 21dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondimport org.apache.commons.math.linear.MatrixVisitorException; 22dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 23dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond/** 24dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Default implementation of the {@link FieldMatrixChangingVisitor} interface. 25dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * <p> 26dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * This class is a convenience to create custom visitors without defining all 27dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * methods. This class provides default implementations that do nothing. 28dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * </p> 29dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 30dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @param <T> the type of the field elements 31dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @version $Revision: 1073158 $ $Date: 2011-02-21 22:46:52 +0100 (lun. 21 févr. 2011) $ 32dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @since 2.0 33dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 34dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondpublic class DefaultFieldMatrixChangingVisitor<T extends FieldElement<T>> 35dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond implements FieldMatrixChangingVisitor<T> { 36dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 37dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** Zero element of the field. */ 38dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond private final T zero; 39dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 40dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** Build a new instance. 41dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @param zero additive identity of the field 42dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 43dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond public DefaultFieldMatrixChangingVisitor(final T zero) { 44dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond this.zero = zero; 45dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond } 46dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 47dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** {@inheritDoc} */ 48dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond public void start(int rows, int columns, 49dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond int startRow, int endRow, int startColumn, int endColumn) { 50dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond } 51dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 52dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** {@inheritDoc} */ 53dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond public T visit(int row, int column, T value) throws MatrixVisitorException { 54dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond return value; 55dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond } 56dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 57dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** {@inheritDoc} */ 58dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond public T end() { 59dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond return zero; 60dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond } 61dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 62dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond} 63