| /* |
| * 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 java.util.Map; |
| |
| import org.apache.commons.configuration2.tree.ExpressionEngine; |
| |
| /** |
| * <p> |
| * A specialized parameters object for hierarchical configurations. |
| * </p> |
| * <p> |
| * This class defines special properties for hierarchical configurations. |
| * Because most hierarchical configurations are file-based configurations this |
| * class extends {@code FileBasedBuilderParametersImpl}. |
| * </p> |
| * |
| * @version $Id$ |
| * @since 2.0 |
| */ |
| public class HierarchicalBuilderParametersImpl extends |
| FileBasedBuilderParametersImpl implements |
| HierarchicalBuilderProperties<HierarchicalBuilderParametersImpl> |
| { |
| /** Constant for the expression engine property. */ |
| private static final String PROP_EXPRESSION_ENGINE = "expressionEngine"; |
| |
| /** |
| * {@inheritDoc} This implementation copies some more properties defined by |
| * this class. |
| */ |
| @Override |
| public void inheritFrom(Map<String, ?> source) |
| { |
| super.inheritFrom(source); |
| copyPropertiesFrom(source, PROP_EXPRESSION_ENGINE); |
| } |
| |
| /** |
| * {@inheritDoc} This implementation stores the expression engine in the |
| * internal parameters map. |
| */ |
| @Override |
| public HierarchicalBuilderParametersImpl setExpressionEngine( |
| ExpressionEngine engine) |
| { |
| storeProperty(PROP_EXPRESSION_ENGINE, engine); |
| return this; |
| } |
| } |