本文整理汇总了Java中android.arch.persistence.room.RoomDatabase类的典型用法代码示例。如果您正苦于以下问题：Java RoomDatabase类的具体用法？Java RoomDatabase怎么用？Java RoomDatabase使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
RoomDatabase类属于android.arch.persistence.room包，在下文中一共展示了RoomDatabase类的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: obtainRoomDatabase
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
@Override
public <DB extends RoomDatabase> DB obtainRoomDatabase(Class<DB> database, String dbName) {
if (mRoomDatabaseCache == null) {
mRoomDatabaseCache = mCacheFactory.build(CacheType.ROOM_DATABASE_CACHE_TYPE);
}
Preconditions.checkNotNull(mRoomDatabaseCache, "Cannot return null from a Cache.Factory#build(int) method");
DB roomDatabase;
synchronized (mRoomDatabaseCache) {
roomDatabase = (DB) mRoomDatabaseCache.get(database.getName());
if (roomDatabase == null) {
RoomDatabase.Builder builder = Room.databaseBuilder(mApplication, database, dbName);
//Customize the room configuration
if (mRoomConfiguration != null) {
mRoomConfiguration.configRoom(mApplication, builder);
}
roomDatabase = (DB) builder.build();
mRoomDatabaseCache.put(database.getName(), roomDatabase);
}
}
return roomDatabase;
}
示例2: obtainRoomDatabase
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
@Override
public <DB extends RoomDatabase> DB obtainRoomDatabase(Class<DB> database, String dbName) {
if (mRoomDatabaseCache == null) {
mRoomDatabaseCache = mCacheFactory.build(CacheType.ROOM_DATABASE_CACHE_TYPE);
}
Preconditions.checkNotNull(mRoomDatabaseCache, "Cannot return null from a Cache.Factory#build(int) method");
DB roomDatabase;
synchronized (mRoomDatabaseCache) {
roomDatabase = (DB) mRoomDatabaseCache.get(database.getName());
if (roomDatabase == null) {
RoomDatabase.Builder builder = Room.databaseBuilder(mApplication, database, dbName);
//自定义 Room 配置
if (mRoomConfiguration != null) {
mRoomConfiguration.configRoom(mApplication, builder);
}
roomDatabase = (DB) builder.build();
mRoomDatabaseCache.put(database.getName(), roomDatabase);
}
}
return roomDatabase;
}
示例3: reopenDatabase
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
public void reopenDatabase() {
if (appDB != null) {
appDB.close();
}
appDB = Room.databaseBuilder(context, AppDatabase.class, "openScale.db")
.allowMainThreadQueries()
.addCallback(new RoomDatabase.Callback() {
@Override
public void onOpen(SupportSQLiteDatabase db) {
super.onOpen(db);
db.setForeignKeyConstraintsEnabled(true);
}
})
.addMigrations(AppDatabase.MIGRATION_1_2)
.build();
measurementDAO = appDB.measurementDAO();
userDAO = appDB.userDAO();
}
示例4: obtainRoomDatabase
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
/**
* Obtain the corresponding RxCache service according to the incoming Class
*
* @param database RoomDatabase Class
* @param <DB> RoomDatabase
* @param dbName RoomDatabase Name
* @return RoomDatabase
*/
<DB extends RoomDatabase> DB obtainRoomDatabase(Class<DB> database, String dbName);
示例5: configRoom
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
@Override
public void configRoom(Context context, RoomDatabase.Builder builder) {
}
示例6: obtainRoomDatabase
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
/**
* 根据传入的 Class 获取对应的 RxCache service
*
* @param database RoomDatabase Class
* @param <DB> RoomDatabase
* @param dbName RoomDatabase name
* @return RoomDatabase
*/
<DB extends RoomDatabase> DB obtainRoomDatabase(Class<DB> database, String dbName);
示例7: configRoom
import android.arch.persistence.room.RoomDatabase; //导入依赖的package包/类
/**
* 提供接口，自定义配置 RoomDatabase
*
* @param context Context
* @param builder RoomDatabase.Builder
*/
void configRoom(Context context, RoomDatabase.Builder<DB> builder);