Changeset 33804 in osm for applications/viewer/jmapviewer/src

Timestamp:

2017-11-12T00:37:00+01:00 (7 years ago)

Author:

donvip

Message:

see #josm15539 - add a new method to ease asynchronous testing (patch by ris)

Location:

applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer

Files:

• OsmTileLoader.java (modified) (1 diff)
• interfaces/TileLoader.java (modified) (1 diff)

applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmTileLoader.java

@@ -178 +178 @@
 
     @Override
+    public boolean hasOutstandingTasks() {
+        return jobDispatcher.getTaskCount() > jobDispatcher.getCompletedTaskCount();
+    }
+
+    @Override
     public void cancelOutstandingTasks() {
         jobDispatcher.getQueue().clear();

applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/interfaces/TileLoader.java

@@ -27 +27 @@
      */
     void cancelOutstandingTasks();
+
+    /**
+     * Determines whether this {@link TileLoader} has tasks which have not completed.
+     * @return whether this {@link TileLoader} has tasks which have not completed. This answer may well be
+     * "approximate" given that many implementations will be using mechanisms where a queue's state can change
+     * during the computation.
+     */
+    default boolean hasOutstandingTasks() {
+        // default implementation supplied just to make transition easier for external implementors
+        throw new UnsupportedOperationException("Not implemented");
+    }
 }