001// --- BEGIN LICENSE BLOCK --- 002/* 003 * Copyright (c) 2009, Mikio L. Braun 004 * All rights reserved. 005 * 006 * Redistribution and use in source and binary forms, with or without 007 * modification, are permitted provided that the following conditions are 008 * met: 009 * 010 * * Redistributions of source code must retain the above copyright 011 * notice, this list of conditions and the following disclaimer. 012 * 013 * * Redistributions in binary form must reproduce the above 014 * copyright notice, this list of conditions and the following 015 * disclaimer in the documentation and/or other materials provided 016 * with the distribution. 017 * 018 * * Neither the name of the Technische Universität Berlin nor the 019 * names of its contributors may be used to endorse or promote 020 * products derived from this software without specific prior 021 * written permission. 022 * 023 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 024 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 025 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 026 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 027 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 028 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 029 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 030 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 031 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 032 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 033 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 034 */ 035// --- END LICENSE BLOCK --- 036 037/* 038 * To change this template, choose Tools | Templates 039 * and open the template in the editor. 040 */ 041 042package org.jblas.ranges; 043 044/** 045 * A range over all available indices. Can be used to address whole columns or rows. Like 046 * the ":" index in matlab. Don't forget to call init() before using this range. 047 */ 048public class AllRange implements Range { 049 private int lower; 050 private int upper; 051 private int value; 052 private int counter; 053 054 public AllRange() { 055 } 056 057 public void init(int l, int u) { 058 lower = l; 059 upper = u; 060 value = l; 061 counter = 0; 062 } 063 064 public int length() { 065 return upper - lower; 066 } 067 068 public int value() { 069 return value; 070 } 071 072 public int index() { 073 return counter; 074 } 075 076 public void next() { 077 counter++; 078 value++; 079 } 080 081 public boolean hasMore() { 082 return value < upper; 083 } 084 085 @Override 086 public String toString() { 087 return String.format("<AllRange from %d to %d, with length %d, index=%d, value=%d>", lower, upper, length(), index(), value()); 088 } 089}