Changeset 8403 for trunk/greenstone3-extensions/vishnu

Timestamp:

2004-10-21T15:27:23+13:00 (20 years ago)

Author:

kjdon

Message:

added the engine type as a parm to the constructor - cos we need to use an engine straight away.

File:

• trunk/greenstone3-extensions/vishnu/src/vishnu/testvis/object/DataManager.java (modified) (1 diff)

trunk/greenstone3-extensions/vishnu/src/vishnu/testvis/object/DataManager.java

@@ -454 +454 @@
     }
 
-    public DataManager(Vishnu d)
+    public DataManager(Vishnu d) {
+    this(d, null);
+    }
+    public DataManager(Vishnu d, String engine)
     {
         displayFrame = d;
-    Engine engine = new Engine(displayFrame);
+    if (engine != null && !engine.equals("")) {
+        engine_type = engine;
+    }
+    Engine theEngine;
+    try {
+        theEngine = (Engine)Class.forName("vishnu.testvis.object."+engine_type).newInstance();
+    } catch (Exception e) {
+        System.err.println("Couldn't create an engine "+engine_type+ ", aborting query");
+        System.err.println(e);
+        return;
+    }
+
+    theEngine.setDisplay(displayFrame);
     Vector q = new Vector();
     q.addElement("initialise");
-    collections = engine.getCollections(q); 
+    collections = theEngine.getCollections(q); 
     }