io.streamthoughts.azkarra.api.config.Property Maven / Gradle / Ivy

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/*
 * Copyright 2019-2020 StreamThoughts.
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 io.streamthoughts.azkarra.api.config;

import java.util.Collections;
import java.util.Objects;

/**
 * A single key-value with configuration.
 */
public class Property extends MapConf implements Conf {

    private final String key;
    /**
     * Creates a new {@link Property} instance.
     *
     * @param key   the string property key.
     * @param value the property value.
     */
    Property(final String key, Object value) {
        super(Collections.singletonMap(Objects.requireNonNull(key, "key cannot be null"), value));
        this.key = key;
    }

    public Object get() {
        return unwrap().get(key);
    }

    public String key() {
        return key;
    }
}