| /* |
| * 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.zest.api.util; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Type; |
| import org.apache.zest.functional.Function; |
| import org.apache.zest.functional.Function2; |
| import org.apache.zest.functional.Iterables; |
| |
| import static org.apache.zest.functional.Iterables.iterable; |
| |
| /** |
| * Useful methods for handling Fields. |
| */ |
| public final class Fields |
| { |
| public static final Function2<Class<?>, String, Field> FIELD_NAMED = new Function2<Class<?>, String, Field>() |
| { |
| @Override |
| public Field map( Class<?> aClass, String name ) |
| { |
| return Iterables.first( Iterables.filter( Classes.memberNamed( name ), FIELDS_OF.map( aClass ) ) ); |
| } |
| }; |
| |
| public static final Function<Type, Iterable<Field>> FIELDS_OF = Classes.forClassHierarchy( new Function<Class<?>, Iterable<Field>>() |
| { |
| @Override |
| public Iterable<Field> map( Class<?> type ) |
| { |
| return iterable( type.getDeclaredFields() ); |
| } |
| } ); |
| } |