FieldProperty.java

/**
 * Copyright (c) 2008-2013, http://www.snakeyaml.org
 *
 * Licensed 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.yaml.snakeyaml.introspector;

import java.lang.reflect.Field;

import org.yaml.snakeyaml.error.YAMLException;

/**
 * <p>
 * A <code>FieldProperty</code> is a <code>Property</code> which is accessed as
 * a field, without going through accessor methods (setX, getX). The field may
 * have any scope (public, package, protected, private).
 * </p>
 */
public class FieldProperty extends GenericProperty {
    private final Field field;

    public FieldProperty(Field field) {
        super(field.getName(), field.getType(), field.getGenericType());
        this.field = field;
        field.setAccessible(true);
    }

    @Override
    public void set(Object object, Object value) throws Exception {
        field.set(object, value);
    }

    @Override
    public Object get(Object object) {
        try {
            return field.get(object);
        } catch (Exception e) {
            throw new YAMLException("Unable to access field " + field.getName() + " on object "
                    + object + " : " + e);
        }
    }
}