1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.configuration2.builder; 18 19 import org.apache.commons.configuration2.tree.ExpressionEngine; 20 21 /** 22 * <p> 23 * Definition of a parameters interface for hierarchical configurations. 24 * </p> 25 * <p> 26 * This interface defines set methods for additional properties common to all hierarchical configurations. 27 * </p> 28 * <p> 29 * <strong>Important note:</strong> This interface is not intended to be implemented by client code! It defines a set of 30 * available properties and may be extended even in minor releases. 31 * </p> 32 * 33 * @since 2.0 34 * @param <T> the type of the result of all set methods for method chaining 35 */ 36 public interface HierarchicalBuilderProperties<T> { 37 /** 38 * Sets the {@code ExpressionEngine} to be used when querying the configuration. 39 * 40 * @param engine the {@code ExpressionEngine} 41 * @return a reference to this object for method chaining 42 */ 43 T setExpressionEngine(ExpressionEngine engine); 44 }