package com.example.myapplication.DataBase; import androidx.room.Dao; import androidx.room.Delete; import androidx.room.Insert; import androidx.room.Query; import androidx.room.Update; import com.example.myapplication.model.ImageEntity; import java.util.List; @Dao public interface ImageDao { @Insert void insert(ImageEntity image); @Query("SELECT * FROM images ORDER BY time DESC") List getAll(); @Delete void delete(ImageEntity item); @Query("DELETE FROM images") void deleteAll(); // 在ImageEntity类中添加查询方法 @Query("SELECT * FROM images ORDER BY time DESC LIMIT 1") ImageEntity getLatestImage(); // 定时间删除:根据 ID 删除特定记录 @Query("DELETE FROM images WHERE time = :time") void deleteBytime(long time); @Query("SELECT * FROM images WHERE id = :id") ImageEntity getById(long id); @Update void update(ImageEntity latestImage); @Query("DELETE FROM images WHERE id IN (:ids)") void deleteByIds(List ids); @Query("DELETE FROM images WHERE time BETWEEN :startTime AND :endTime") int deleteByTimeRange(long startTime, long endTime); @Query("SELECT * FROM images WHERE time BETWEEN :startTime AND :endTime") List getImagesByTimeRange(long startTime, long endTime); }