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我正在创建一个android应用程序。我正在使用schematic来生成内容提供者。在Java中引用生成的代码
我知道应用程序使用的实际代码是由我创建的类生成的。基于此,我想知道如果在源代码中引用生成的代码,我将面临什么问题。
我正在使用的代码如下:
package com.example.movies.data;
@Database(
version = MovieDatabase.VERSION,
packageName = "com.example.movies.provider"
)
public class MovieDatabase {
public static final int VERSION = 1;
@Table(MovieColumns.class)
public static final String MOVIE = "movie";
// Some more tables here
@OnUpgrade
public static void onUpgrade(Context context, SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("drop table if exists " + MOVIE);
// The next SQL statement is generated out of the current class
db.execSQL(com.example.movies.provider.MovieDatabase.MOVIE);
}
}
生成的代码如下:
package com.example.movies.provider;
public class MovieDatabase extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
// The next statement is the one I use in the source code
public static final String MOVIE = "CREATE TABLE movie ("
+ MovieColumns._ID + " INTEGER PRIMARY KEY,"
+ MovieColumns.TITLE + " TEXT NOT NULL,"
+ MovieColumns.SYNOPSIS + " TEXT,"
+ MovieColumns.POSTER_URL + " TEXT NOT NULL,"
+ MovieColumns.RELEASE_DATE + " INTEGER NOT NULL,"
+ MovieColumns.RATING + " REAL)";
// Some other SQL statements and functions
// The next function is generated out of onUpgrade
// in the source class MovieDatabase
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
com.example.movies.data.MovieDatabase.onUpgrade(context, db, oldVersion, newVersion);
}
}
正如你所看到的,我需要的源代码生成的SQL语句,并且使用所提到的库的想法是避免所有的样板代码。
是否有其他的选择?