Java Reflection Field Find findField(Class clazz, String name)

Description

Attempt to find a Field field on the supplied Class with the supplied name.

License

Open Source License

Parameter

Parameter	Description
clazz	the class to introspect
name	the name of the field (may be <code>null</code> if type is specified)

Return

the corresponding Field object, or null if not found

Declaration

public static Field findField(Class<?> clazz, String name) 

Method Source Code

//package com.java2s;
/*/*w ww.  j a v a  2s .c o m*/
 * Artifactory is a binaries repository manager.
 * Copyright (C) 2012 JFrog Ltd.
 *
 * Artifactory is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Artifactory is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Artifactory.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.lang.reflect.Field;

public class Main {
    /**
     * Attempt to find a {@link Field field} on the supplied {@link Class} with
     * the supplied <code>name</code>. Searches all
     * superclasses up to {@link Object}.
     *
     * @param clazz the class to introspect
     * @param name  the name of the field (may be <code>null</code> if type is specified)
     * @return the corresponding Field object, or <code>null</code> if not found
     */
    public static Field findField(Class<?> clazz, String name) {
        Class<?> searchType = clazz;
        while (searchType != null) {
            Field[] fields = searchType.getDeclaredFields();
            for (Field field : fields) {
                if ((name == null || name.equals(field.getName()))) {
                    return field;
                }
            }
            searchType = searchType.getSuperclass();
        }
        return null;
    }
}

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