me.ahoo.cosid.spring.data.jdbc.IdAnnotationDefinitionParser Maven / Gradle / Ivy

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Universal, flexible, high-performance distributed ID generator.

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/*
 * Copyright [2021-present] [ahoo wang  (https://github.com/Ahoo-Wang)].
 * 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 me.ahoo.cosid.spring.data.jdbc;

import me.ahoo.cosid.accessor.IdDefinition;
import me.ahoo.cosid.accessor.parser.FieldDefinitionParser;
import me.ahoo.cosid.provider.IdGeneratorProvider;

import lombok.extern.slf4j.Slf4j;
import org.springframework.data.annotation.Id;

import java.lang.reflect.Field;
import java.util.List;

/**
 * Id Annotation FieldDefinitionParser.
 *
 * @author ahoo wang
 * @see org.springframework.data.annotation.Id
 */
@Slf4j
public class IdAnnotationDefinitionParser implements FieldDefinitionParser {
    
    public static final IdAnnotationDefinitionParser INSTANCE = new IdAnnotationDefinitionParser();
    
    @Override
    public IdDefinition parse(List> lookupClassList, Field field) {
        Id fieldId = field.getAnnotation(Id.class);
        if (null == fieldId) {
            return IdDefinition.NOT_FOUND;
        }
        return new IdDefinition(IdGeneratorProvider.SHARE, field);
    }
}