[rygel] core: SearchExpression is now abstract

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 86589d330dc8318255f945c728f23904f1afa365
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Nov 3 18:09:29 2009 +0200

    core: SearchExpression is now abstract

 src/rygel/rygel-search-expression.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/rygel/rygel-search-expression.vala b/src/rygel/rygel-search-expression.vala
index c17eaef..e825a3e 100644
--- a/src/rygel/rygel-search-expression.vala
+++ b/src/rygel/rygel-search-expression.vala
@@ -30,7 +30,7 @@ public enum Rygel.LogicalOperator {
 /**
  * Represents a SearchExpression tree.
  */
-public class Rygel.SearchExpression<G,H,I> {
+public abstract class Rygel.SearchExpression<G,H,I> {
     public G op; // Operator
 
     public H operand1;