15ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler/* 25ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Copyright (C) 2010 The Android Open Source Project 35ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 45ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Licensed under the Apache License, Version 2.0 (the "License"); 55ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * you may not use this file except in compliance with the License. 65ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * You may obtain a copy of the License at 75ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 85ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * http://www.apache.org/licenses/LICENSE-2.0 95ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 105ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Unless required by applicable law or agreed to in writing, software 115ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * distributed under the License is distributed on an "AS IS" BASIS, 125ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * See the License for the specific language governing permissions and 145ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * limitations under the License. 155ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler */ 165ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittlerpackage tests.util; 175ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler/** 185ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Pair of typed values. 195ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 205ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * <p>Pairs are obtained using {@link #of(Object, Object) of}. 215ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 225ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @param <F> type of the first value. 235ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @param <S> type of the second value. 245ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler */ 255ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittlerpublic class Pair<F, S> { 265ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler private final F mFirst; 275ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler private final S mSecond; 285ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler private Pair(F first, S second) { 295ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler mFirst = first; 305ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler mSecond = second; 315ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 325ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler /** 335ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Gets the pair consisting of the two provided values. 345ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 355ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @param first first value or {@code null}. 365ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @param second second value or {@code null}. 375ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler */ 385ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public static <F, S> Pair<F, S> of(F first, S second) { 395ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return new Pair<F, S>(first, second); 405ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 415ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler /** 425ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Gets the first value from this pair. 435ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 445ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @return value or {@code null}. 455ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler */ 465ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public F getFirst() { 475ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return mFirst; 485ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 495ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler /** 505ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * Gets the second value from this pair. 515ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * 525ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler * @return value or {@code null}. 535ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler */ 545ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public S getSecond() { 555ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return mSecond; 565ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 575ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler @Override 585ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public String toString() { 595ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return "Pair[" + mFirst + ", " + mSecond + "]"; 605ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 615ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler @Override 625ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public int hashCode() { 635ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler final int prime = 31; 645ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler int result = 1; 655ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler result = prime * result + ((mFirst == null) ? 0 : mFirst.hashCode()); 665ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler result = prime * result + ((mSecond == null) ? 0 : mSecond.hashCode()); 675ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return result; 685ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 695ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler @Override 705ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler public boolean equals(Object obj) { 715ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (this == obj) { 725ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return true; 735ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 745ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (obj == null) { 755ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 765ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 775ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (getClass() != obj.getClass()) { 785ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 795ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 805ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler @SuppressWarnings("rawtypes") 815ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler Pair other = (Pair) obj; 825ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (mFirst == null) { 835ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (other.mFirst != null) { 845ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 855ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 865ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } else if (!mFirst.equals(other.mFirst)) { 875ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 885ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 895ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (mSecond == null) { 905ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler if (other.mSecond != null) { 915ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 925ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 935ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } else if (!mSecond.equals(other.mSecond)) { 945ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return false; 955ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 965ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler return true; 975ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler } 985ca87050dafe566d8d4e2b11e395f7d06a2d837bNathan Mittler} 99