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 Universit?t 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 PointRange is a range which only has a single point. 046 */ 047public class PointRange implements Range { 048 private int value; 049 private boolean consumed; 050 051 /** 052 * Construct a new PointRange with the one given index. 053 */ 054 public PointRange(int v) { 055 value = v; 056 } 057 058 public void init(int l, int u) { 059 consumed = false; 060 } 061 062 public int length() { 063 return 1; 064 } 065 066 public int value() { 067 return value; 068 } 069 070 public int index() { 071 return 0; 072 } 073 074 public void next() { 075 consumed = true; 076 } 077 078 public boolean hasMore() { 079 return !consumed; 080 } 081 082 @Override 083 public String toString() { 084 return String.format("<PointRange at=%d>", value); 085 } 086}