Add getter for casted access to database instance in 'Meteor'

Author: ocram

Source/library/src/main/java/im/delight/android/ddp/Meteor.java

@@ -17,6 +17,7 @@
  */
 
 import im.delight.android.ddp.db.DataStore;
+import im.delight.android.ddp.db.Database;
 import java.net.URI;
 import android.content.SharedPreferences;
 import android.content.Context;
@@ -1209,10 +1210,24 @@ private void announceSessionReady(final boolean signedInAutomatically) {
 /**
  * Returns the data store that was set in the constructor and that contains all data received from the server
  *
- * @return the data store
+ * @return the data store or `null`
  */
 public DataStore getDataStore() {
 return mDataStore;
 }
 
+/**
+ * Returns the database that was set in the constructor and that contains all data received from the server
+ *
+ * @return the database or `null`
+ */
+public Database getDatabase() {
+if (mDataStore instanceof Database) {
+return (Database) mDataStore;
+}
+else {
+return null;
+}
+}
+
 }