bugfixes mainly...

[mir.git] / source / mircoders / storage / DatabaseMediafolder.java

diff --git a/source/mircoders/storage/DatabaseMediafolder.java b/source/mircoders/storage/DatabaseMediafolder.java
index a3f92be..6cb5312 100755 (executable)
--- a/source/mircoders/storage/DatabaseMediafolder.java
+++ b/source/mircoders/storage/DatabaseMediafolder.java
@@ -26,7 +26,11 @@ public class DatabaseMediafolder extends Database implements StorageObject{
 
   private static DatabaseMediafolder instance;
 
-  public static DatabaseMediafolder getInstance() throws StorageObjectException {
+  // the following *has* to be sychronized cause this static method
+  // could get preemted and we could end up with 2 instances of DatabaseFoo..
+  // see the "Singletons with needles and thread" article at JavaWorld -mh
+  public synchronized static DatabaseMediafolder getInstance() 
+    throws StorageObjectException {
     if (instance == null) {
       instance = new DatabaseMediafolder();
       instance.myselfDatabase = instance;