/*
 * 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 org.apache.commons.configuration2;

import java.util.Iterator;

/**
 * A specialized configuration implementation that does not support cloning. This class is only used in some test cases
 * for testing implementations of clone() methods. It does not make much sense otherwise; all methods are just dummies.
 */
public class NonCloneableConfiguration extends AbstractConfiguration {

    /**
     * Dummy implementation of this method.
     */
    @Override
    protected void addPropertyDirect(final String key, final Object value) {
        // noop
    }

    @Override
    protected void clearPropertyDirect(final String key) {
        // noop
    }

    /**
     * Dummy implementation of this method.
     */
    @Override
    protected boolean containsKeyInternal(final String key) {
        return false;
    }

    /**
     * Dummy implementation of this method.
     *
     * @since 2.11.0
     */
    @Override
    protected boolean containsValueInternal(final Object value) {
        return false;
    }

    /**
     * Dummy implementation of this method.
     */
    @Override
    protected Iterator<String> getKeysInternal() {
        return null;
    }

    /**
     * Dummy implementation of this method.
     */
    @Override
    protected Object getPropertyInternal(final String key) {
        return null;
    }

    /**
     * Dummy implementation of this method.
     */
    @Override
    protected boolean isEmptyInternal() {
        return true;
    }
}
