org.springframework.cache.support.SimpleValueWrapper.java Source code

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Here is the source code for org.springframework.cache.support.SimpleValueWrapper.java

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/*
 * Copyright 2002-2017 the original author or 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
 *
 *      https://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 org.springframework.cache.support;

import org.springframework.cache.Cache.ValueWrapper;
import org.springframework.lang.Nullable;

/**
 * Straightforward implementation of {@link org.springframework.cache.Cache.ValueWrapper},
 * simply holding the value as given at construction and returning it from {@link #get()}.
 *
 * @author Costin Leau
 * @since 3.1
 */
public class SimpleValueWrapper implements ValueWrapper {

    @Nullable
    private final Object value;

    /**
     * Create a new SimpleValueWrapper instance for exposing the given value.
     * @param value the value to expose (may be {@code null})
     */
    public SimpleValueWrapper(@Nullable Object value) {
        this.value = value;
    }

    /**
     * Simply returns the value as given at construction time.
     */
    @Override
    @Nullable
    public Object get() {
        return this.value;
    }

}