How to use

isOpen

method

in

androidx.sqlite.db.SupportSQLiteDatabase

/**
 * @return Whether or not {@link Collection} and its child database are open.
 */
public boolean colIsOpen() {
  return mCollection != null && mCollection.getDb() != null &&
      mCollection.getDb().getDatabase() != null && mCollection.getDb().getDatabase().isOpen();
}

/**
 * Closes a previously opened database connection.
 */
public void close() {
  try {
    mDatabase.close();
    Timber.d("Database %s closed = %s", mDatabase.getPath(), !mDatabase.isOpen());
  } catch (Exception e) {
    // The pre-framework requery API ate this exception, but the framework API exposes it.
    // We may want to propagate it in the future, but for now maintain the old API and log.
    Timber.e(e, "Failed to close database %s", this.getDatabase().getPath());
  }
}