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Tools to assist in the reading of configuration/preferences files in various formats

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/*
 * 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.builder;

import org.apache.commons.configuration2.tree.ExpressionEngine;

/**
 * 
 * Definition of a parameters interface for hierarchical configurations.
 * 
 * 
 * This interface defines set methods for additional properties common to all hierarchical configurations.
 * 
 * 
 * Important note: This interface is not intended to be implemented by client code! It defines a set of
 * available properties and may be extended even in minor releases.
 * 
 *
 * @since 2.0
 * @param  the type of the result of all set methods for method chaining
 */
public interface HierarchicalBuilderProperties {
    /**
     * Sets the {@code ExpressionEngine} to be used when querying the configuration.
     *
     * @param engine the {@code ExpressionEngine}
     * @return a reference to this object for method chaining
     */
    T setExpressionEngine(ExpressionEngine engine);
}