1 /* 2 * Copyright 2008 Tobias Hochwallner 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * 16 */ 17 package org.castor.core.nature; 18 19 /** 20 * Defines a marker interface that any class needs to implement that wants 21 * to allow natures to be layered on top. 22 * 23 * @see ClassInfo 24 * @see Nature 25 * 26 * @author Tobias Hochwallner, Sebastian Gabmeyer 27 * @since 1.2.1 28 * 29 */ 30 public interface NatureExtendable { 31 32 /** 33 * Checks if a specified nature has been added. 34 * 35 * @param nature the name of the nature. 36 * @return true if the specified nature was added. 37 */ 38 boolean hasNature(String nature); 39 40 /** 41 * Adds a specified nature. 42 * 43 * @param nature the name of the nature 44 */ 45 void addNature(String nature); 46 47 }