[Settings] Do not creat multiple database (e3f15002) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/mobile/dataservice/MobileNetworkDatabase.java

+17 −6

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.content.Context;
		import android.util.Log;

		import java.util.List;
		import java.util.Objects;

		import androidx.lifecycle.LiveData;
		import androidx.room.Database;
		@@ -39,18 +40,28 @@ public abstract class MobileNetworkDatabase extends RoomDatabase {

		public abstract MobileNetworkInfoDao mMobileNetworkInfoDao();

		private static MobileNetworkDatabase sInstance;
		private static final Object sLOCK = new Object();


		/**
		* Create the MobileNetworkDatabase.
		*
		* @param context The context.
		* @return The MobileNetworkDatabase.
		*/
		public static MobileNetworkDatabase createDatabase(Context context) {
		return Room.inMemoryDatabaseBuilder(context, MobileNetworkDatabase.class)
		public static MobileNetworkDatabase getInstance(Context context) {
		synchronized (sLOCK) {
		if (Objects.isNull(sInstance)) {
		Log.d(TAG, "createDatabase.");
		sInstance = Room.inMemoryDatabaseBuilder(context, MobileNetworkDatabase.class)
		.fallbackToDestructiveMigration()
		.enableMultiInstanceInvalidation()
		.build();
		}
		}
		return sInstance;
		}

		/**
		* Insert the subscription info to the SubscriptionInfoEntity table.
		@@ -93,7 +104,7 @@ public abstract class MobileNetworkDatabase extends RoomDatabase {
		* Query the subscription info by the subscription ID from the SubscriptionInfoEntity
		* table.
		*/
		public LiveData<SubscriptionInfoEntity> querySubInfoById(String id) {
		public SubscriptionInfoEntity querySubInfoById(String id) {
		return mSubscriptionInfoDao().querySubInfoById(id);
		}

+1 −1

Original line number	Diff line number	Diff line
		@@ -37,7 +37,7 @@ public interface SubscriptionInfoDao {

		@Query("SELECT * FROM " + DataServiceUtils.SubscriptionInfoData.TABLE_NAME + " WHERE "
		+ DataServiceUtils.SubscriptionInfoData.COLUMN_ID + " = :subId")
		LiveData<SubscriptionInfoEntity> querySubInfoById(String subId);
		SubscriptionInfoEntity querySubInfoById(String subId);

		@Query("SELECT * FROM " + DataServiceUtils.SubscriptionInfoData.TABLE_NAME + " WHERE "
		+ DataServiceUtils.SubscriptionInfoData.COLUMN_IS_ACTIVE_SUBSCRIPTION_ID