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The Adobe Experience Manager SDK

There is a newer version: 2024.11.18751.20241128T090041Z-241100

/*
 * Copyright (C) 2007 The Guava Authors
 *
 * 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.google.common.base;

import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
 *  This class provides default values for all Java types, as defined by the JLS.
 *
 *  @author Ben Yu
 *  @since 1.0
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@Deprecated(since = "2022-12-01")
public final class Defaults {

    private Defaults() {
    }

    private static final Map, Object> DEFAULTS;

    static {
        Map, Object> map = new HashMap, Object>();
        put(map, boolean.class, false);
        put(map, char.class, '\0');
        put(map, byte.class, (byte) 0);
        put(map, short.class, (short) 0);
        put(map, int.class, 0);
        put(map, long.class, 0L);
        put(map, float.class, 0f);
        put(map, double.class, 0d);
        DEFAULTS = Collections.unmodifiableMap(map);
    }

    private static  void put(Map, Object> map, Class type, T value) {
        map.put(type, value);
    }

    /**
     * Returns the default value of {@code type} as defined by JLS --- {@code 0} for numbers, {@code
     * false} for {@code boolean} and {@code '\0'} for {@code char}. For non-primitive types and
     * {@code void}, null is returned.
     */
    @SuppressWarnings("unchecked")
    public static  T defaultValue(Class type) {
        return (T) DEFAULTS.get(checkNotNull(type));
    }
}