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Code Issues Releases Wiki Activity

re-open database without caching sql -shm, -wal files

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OliE
2018-10-27 13:45:44 +02:00
parent eae59b09e4
commit 931666b89c
1 changed files with 5 additions and 3 deletions
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8
android_app/app/src/main/java/com/health/openscale/core/OpenScale.java
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@@ -99,7 +99,7 @@ public class OpenScale {
btDeviceDriver = null; btDeviceDriver = null;
fragmentList = new ArrayList<>(); fragmentList = new ArrayList<>();
reopenDatabase(); reopenDatabase(false);
updateScaleData(); updateScaleData();
} }
@@ -120,13 +120,14 @@ public class OpenScale {
return instance; return instance;
} }
public void reopenDatabase() throws SQLiteDatabaseCorruptException { public void reopenDatabase(boolean truncate) throws SQLiteDatabaseCorruptException {
if (appDB != null) { if (appDB != null) {
appDB.close(); appDB.close();
} }
appDB = Room.databaseBuilder(context, AppDatabase.class, DATABASE_NAME) appDB = Room.databaseBuilder(context, AppDatabase.class, DATABASE_NAME)
.allowMainThreadQueries() .allowMainThreadQueries()
.setJournalMode(truncate == true ? RoomDatabase.JournalMode.TRUNCATE : RoomDatabase.JournalMode.AUTOMATIC) // in truncate mode no sql cache files (-shm, -wal) are generated
.addCallback(new RoomDatabase.Callback() { .addCallback(new RoomDatabase.Callback() {
@Override @Override
public void onOpen(SupportSQLiteDatabase db) { public void onOpen(SupportSQLiteDatabase db) {
@@ -420,7 +421,7 @@ public class OpenScale {
copyFile(Uri.fromFile(exportFile), Uri.fromFile(tmpExportFile)); copyFile(Uri.fromFile(exportFile), Uri.fromFile(tmpExportFile));
copyFile(importFile, Uri.fromFile(exportFile)); copyFile(importFile, Uri.fromFile(exportFile));
reopenDatabase(); reopenDatabase(false);
if (!getScaleUserList().isEmpty()) { if (!getScaleUserList().isEmpty()) {
selectScaleUser(getScaleUserList().get(0).getId()); selectScaleUser(getScaleUserList().get(0).getId());
@@ -436,6 +437,7 @@ public class OpenScale {
public void exportDatabase(Uri exportFile) throws IOException { public void exportDatabase(Uri exportFile) throws IOException {
File dbFile = context.getApplicationContext().getDatabasePath("openScale.db"); File dbFile = context.getApplicationContext().getDatabasePath("openScale.db");
reopenDatabase(true); // re-open database without caching sql -shm, -wal files
copyFile(Uri.fromFile(dbFile), exportFile); copyFile(Uri.fromFile(dbFile), exportFile);
} }