summaryrefslogtreecommitdiff
path: root/legacy-test/src/com/android/internal/util/Predicates.java
diff options
context:
space:
mode:
Diffstat (limited to 'legacy-test/src/com/android/internal/util/Predicates.java')
-rw-r--r--legacy-test/src/com/android/internal/util/Predicates.java127
1 files changed, 0 insertions, 127 deletions
diff --git a/legacy-test/src/com/android/internal/util/Predicates.java b/legacy-test/src/com/android/internal/util/Predicates.java
deleted file mode 100644
index fe1ff1529138..000000000000
--- a/legacy-test/src/com/android/internal/util/Predicates.java
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2008 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;
-
-/**
- * Predicates contains static methods for creating the standard set of
- * {@code Predicate} objects.
- *
- * @hide
- */
-public class Predicates {
-
- private Predicates() {
- }
-
- /**
- * Returns a Predicate that evaluates to true iff each of its components
- * evaluates to true. The components are evaluated in order, and evaluation
- * will be "short-circuited" as soon as the answer is determined.
- */
- public static <T> Predicate<T> and(Predicate<? super T>... components) {
- return Predicates.<T>and(Arrays.asList(components));
- }
-
- /**
- * Returns a Predicate that evaluates to true iff each of its components
- * evaluates to true. The components are evaluated in order, and evaluation
- * will be "short-circuited" as soon as the answer is determined. Does not
- * defensively copy the iterable passed in, so future changes to it will alter
- * the behavior of this Predicate. If components is empty, the returned
- * Predicate will always evaluate to true.
- */
- public static <T> Predicate<T> and(Iterable<? extends Predicate<? super T>> components) {
- return new AndPredicate(components);
- }
-
- /**
- * Returns a Predicate that evaluates to true iff any one of its components
- * evaluates to true. The components are evaluated in order, and evaluation
- * will be "short-circuited" as soon as the answer is determined.
- */
- public static <T> Predicate<T> or(Predicate<? super T>... components) {
- return Predicates.<T>or(Arrays.asList(components));
- }
-
- /**
- * Returns a Predicate that evaluates to true iff any one of its components
- * evaluates to true. The components are evaluated in order, and evaluation
- * will be "short-circuited" as soon as the answer is determined. Does not
- * defensively copy the iterable passed in, so future changes to it will alter
- * the behavior of this Predicate. If components is empty, the returned
- * Predicate will always evaluate to false.
- */
- public static <T> Predicate<T> or(Iterable<? extends Predicate<? super T>> components) {
- return new OrPredicate(components);
- }
-
- /**
- * Returns a Predicate that evaluates to true iff the given Predicate
- * evaluates to false.
- */
- public static <T> Predicate<T> not(Predicate<? super T> predicate) {
- return new NotPredicate<T>(predicate);
- }
-
- private static class AndPredicate<T> implements Predicate<T> {
- private final Iterable<? extends Predicate<? super T>> components;
-
- private AndPredicate(Iterable<? extends Predicate<? super T>> components) {
- this.components = components;
- }
-
- public boolean apply(T t) {
- for (Predicate<? super T> predicate : components) {
- if (!predicate.apply(t)) {
- return false;
- }
- }
- return true;
- }
- }
-
- private static class OrPredicate<T> implements Predicate<T> {
- private final Iterable<? extends Predicate<? super T>> components;
-
- private OrPredicate(Iterable<? extends Predicate<? super T>> components) {
- this.components = components;
- }
-
- public boolean apply(T t) {
- for (Predicate<? super T> predicate : components) {
- if (predicate.apply(t)) {
- return true;
- }
- }
- return false;
- }
- }
-
- private static class NotPredicate<T> implements Predicate<T> {
- private final Predicate<? super T> predicate;
-
- private NotPredicate(Predicate<? super T> predicate) {
- this.predicate = predicate;
- }
-
- public boolean apply(T t) {
- return !predicate.apply(t);
- }
- }
-}