001/* 002 * SonarQube, open source software quality management tool. 003 * Copyright (C) 2008-2014 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * SonarQube is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * SonarQube is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020package org.sonar.api.batch.fs.internal; 021 022import org.sonar.api.batch.fs.TextPointer; 023import org.sonar.api.batch.fs.TextRange; 024 025/** 026 * @since 5.2 027 */ 028public class DefaultTextRange implements TextRange { 029 030 private final TextPointer start; 031 private final TextPointer end; 032 033 public DefaultTextRange(TextPointer start, TextPointer end) { 034 this.start = start; 035 this.end = end; 036 } 037 038 @Override 039 public TextPointer start() { 040 return start; 041 } 042 043 @Override 044 public TextPointer end() { 045 return end; 046 } 047 048 @Override 049 public boolean overlap(TextRange another) { 050 // [A,B] and [C,D] 051 // B > C && D > A 052 return this.end.compareTo(another.start()) > 0 && another.end().compareTo(this.start) > 0; 053 } 054 055 @Override 056 public String toString() { 057 return "Range[from " + start + " to " + end + "]"; 058 } 059 060 @Override 061 public boolean equals(Object obj) { 062 if (!(obj instanceof DefaultTextRange)) { 063 return false; 064 } 065 DefaultTextRange other = (DefaultTextRange) obj; 066 return start.equals(other.start) && end.equals(other.end); 067 } 068 069 @Override 070 public int hashCode() { 071 return start.hashCode() * 17 + end.hashCode(); 072 } 073 074}