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Java example source code file (FieldMatrixPreservingVisitor.java)

This example Java source code file (FieldMatrixPreservingVisitor.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

fieldelement, fieldmatrixpreservingvisitor

The FieldMatrixPreservingVisitor.java Java example source code

/*
 * 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.math3.linear;

import org.apache.commons.math3.FieldElement;

/**
 * Interface defining a visitor for matrix entries.
 *
 * @param <T> the type of the field elements
 * @since 2.0
 */
public interface FieldMatrixPreservingVisitor<T extends FieldElement {
    /**
     * Start visiting a matrix.
     * <p>This method is called once before any entry of the matrix is visited.

* @param rows number of rows of the matrix * @param columns number of columns of the matrix * @param startRow Initial row index * @param endRow Final row index (inclusive) * @param startColumn Initial column index * @param endColumn Final column index (inclusive) */ void start(int rows, int columns, int startRow, int endRow, int startColumn, int endColumn); /** * Visit one matrix entry. * @param row row index of the entry * @param column column index of the entry * @param value current value of the entry */ void visit(int row, int column, T value); /** * End visiting a matrix. * <p>This method is called once after all entries of the matrix have been visited.

* @return the value that the <code>walkInXxxOrder must return */ T end(); }

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