001/* 002 * Portions of this software was developed by employees of the National Institute 003 * of Standards and Technology (NIST), an agency of the Federal Government and is 004 * being made available as a public service. Pursuant to title 17 United States 005 * Code Section 105, works of NIST employees are not subject to copyright 006 * protection in the United States. This software may be subject to foreign 007 * copyright. Permission in the United States and in foreign countries, to the 008 * extent that NIST may hold copyright, to use, copy, modify, create derivative 009 * works, and distribute this software and its documentation without fee is hereby 010 * granted on a non-exclusive basis, provided that this notice and disclaimer 011 * of warranty appears in all copies. 012 * 013 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER 014 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY 015 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF 016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM 017 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE 018 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT 019 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, 020 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, 021 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, 022 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR 023 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT 024 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER. 025 */ 026 027package gov.nist.secauto.metaschema.core.configuration; 028 029import edu.umd.cs.findbugs.annotations.NonNull; 030 031/** 032 * Provides a complete, abstract implementation of a generalized feature. 033 * Feature implementations can extend this class the implement configuration 034 * sets for a given purpose. 035 * 036 * @param <V> 037 * the feature value type 038 */ 039public abstract class AbstractConfigurationFeature<V> implements IConfigurationFeature<V> { 040 @NonNull 041 private final Class<V> valueClass; 042 @NonNull 043 private final V defaultValue; 044 045 /** 046 * Construct a new feature with a default value. 047 * 048 * @param valueClass 049 * the class of the feature's value 050 * @param defaultValue 051 * the value's default 052 */ 053 protected AbstractConfigurationFeature( 054 @NonNull Class<V> valueClass, 055 @NonNull V defaultValue) { 056 this.valueClass = valueClass; 057 this.defaultValue = defaultValue; 058 } 059 060 @Override 061 public V getDefault() { 062 return defaultValue; 063 } 064 065 @Override 066 public Class<V> getValueClass() { 067 return valueClass; 068 } 069}