diff options
Diffstat (limited to 'core/java/com')
-rw-r--r-- | core/java/com/android/internal/util/Objects.java | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/core/java/com/android/internal/util/Objects.java b/core/java/com/android/internal/util/Objects.java deleted file mode 100644 index 2664182..0000000 --- a/core/java/com/android/internal/util/Objects.java +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed 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 com.android.internal.util; - -import java.util.Arrays; - -/** - * Object utility methods. - */ -public class Objects { - - /** - * Determines whether two possibly-null objects are equal. Returns: - * - * <ul> - * <li>{@code true} if {@code a} and {@code b} are both null. - * <li>{@code true} if {@code a} and {@code b} are both non-null and they are - * equal according to {@link Object#equals(Object)}. - * <li>{@code false} in all other situations. - * </ul> - * - * <p>This assumes that any non-null objects passed to this function conform - * to the {@code equals()} contract. - */ - public static boolean equal(Object a, Object b) { - return a == b || (a != null && a.equals(b)); - } - - /** - * Generates a hash code for multiple values. The hash code is generated by - * calling {@link Arrays#hashCode(Object[])}. - * - * <p>This is useful for implementing {@link Object#hashCode()}. For example, - * in an object that has three properties, {@code x}, {@code y}, and - * {@code z}, one could write: - * <pre> - * public int hashCode() { - * return Objects.hashCode(getX(), getY(), getZ()); - * }</pre> - * - * <b>Warning</b>: When a single object is supplied, the returned hash code - * does not equal the hash code of that object. - */ - public static int hashCode(Object... objects) { - return Arrays.hashCode(objects); - } - -} |