com.bugull.mongo.decoder.EmbedDecoder.java Source code

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/*
 * Copyright (c) www.bugull.com
 * 
 * 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 com.bugull.mongo.decoder;

import com.bugull.mongo.annotations.Default;
import com.bugull.mongo.annotations.Embed;
import com.bugull.mongo.utils.FieldUtil;
import com.bugull.mongo.utils.MapperUtil;
import com.mongodb.DBObject;
import java.lang.reflect.Field;

/**
 *
 * @author Frank Wen(xbwen@hotmail.com)
 */
public class EmbedDecoder extends AbstractDecoder {

    public EmbedDecoder(Field field, DBObject dbo) {
        super(field);
        String fieldName = field.getName();
        Embed embed = field.getAnnotation(Embed.class);
        String name = embed.name();
        if (!name.equals(Default.NAME)) {
            fieldName = name;
        }
        value = dbo.get(fieldName);
    }

    @Override
    public void decode(Object obj) {
        Object o = MapperUtil.fromDBObject(field.getType(), (DBObject) value);
        FieldUtil.set(obj, field, o);
    }

}