com.htmlhifive.sync.resource.common.ResourceItemCommonDataRepository.java Source code

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Here is the source code for com.htmlhifive.sync.resource.common.ResourceItemCommonDataRepository.java

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/*
 * Copyright (C) 2012-2013 NS Solutions Corporation
 *
 * 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.htmlhifive.sync.resource.common;

import javax.persistence.LockModeType;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Lock;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;

/**
 * ?????.<br>
 * SpringFramework??????.<br>
 *
 * @author kishigam
 */
public interface ResourceItemCommonDataRepository
        extends JpaRepository<ResourceItemCommonData, ResourceItemCommonDataId> {

    /**
     * ID???????.<br>
     * ???.
     *
     * @param id ?ID
     * @return ??
     */
    @Lock(LockModeType.PESSIMISTIC_WRITE)
    @Query("SELECT d FROM ResourceItemCommonData d WHERE d.id = :id")
    ResourceItemCommonData findOneForUpdate(@Param("id") ResourceItemCommonDataId id);

    /**
     * ????ID?????????????.
     *
     * @param resourceName ??
     * @param targetItemId ?ID
     * @param since ?(??)
     * @return ??
     */
    @Query("SELECT d FROM ResourceItemCommonData d WHERE d.id.resourceName = :resourceName AND d.targetItemId = :targetItemId AND d.lastModified > :since")
    ResourceItemCommonData findModified(@Param("resourceName") String resourceName,
            @Param("targetItemId") String targetItemId, @Param("since") long since);

    /**
     * ????ID?????????????.<br>
     * ???.
     *
     * @param resourceName ??
     * @param targetItemId ?ID
     * @param since ?(??)
     * @return ??
     */
    @Lock(LockModeType.PESSIMISTIC_WRITE)
    @Query("SELECT d FROM ResourceItemCommonData d WHERE d.id.resourceName = :resourceName AND d.targetItemId = :targetItemId AND d.lastModified > :since")
    ResourceItemCommonData findModifiedForUpdate(@Param("resourceName") String resourceName,
            @Param("targetItemId") String targetItemId, @Param("since") long since);
}