X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.interop.update%2Fsrc%2Forg%2Fsimantics%2Finterop%2Fupdate%2Fmodel%2FUpdateList.java;fp=org.simantics.interop.update%2Fsrc%2Forg%2Fsimantics%2Finterop%2Fupdate%2Fmodel%2FUpdateList.java;h=2267ebec6f47e8ec101a39d1945e19d99aa1325a;hb=f13ae5d0bf1d136232cbce22b1a31be429ca2b54;hp=21cde66e1c461e3b4ebb70444b3cccbf3fc282f2;hpb=2be99ce499ee7a2657785fc348d5cb24d3be1650;p=simantics%2Finterop.git

diff --git a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateList.java b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateList.java
index 21cde66..2267ebe 100644
--- a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateList.java
+++ b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateList.java
@@ -14,20 +14,20 @@ import org.simantics.interop.test.GraphChanges.Modification;
 import org.simantics.utils.datastructures.Pair;
 
 public class UpdateList {
-	private HashSet<PropertyChange> changes;
+	private List<PropertyChange> changes;
 	
 	public UpdateList() {
-		changes = new HashSet<>();
+		changes = new ArrayList<>();
 	}
 	
 	public UpdateList(Collection<PropertyChange> changes) {
-		this.changes = new HashSet<>(changes);
+		this.changes = new ArrayList<>(changes);
 	}
 	
 	public UpdateList(GraphChanges graphChanges, Collection<Modification> coll) {
-		this.changes = new HashSet<>();
+		this.changes = new ArrayList<>();
 		for (Modification p : coll) {
-			changes.add(create(graphChanges, p.getLeftSub(),p.getRightSub(),new Pair<Statement, Statement>(p.getLeftStm(), p.getRightStm())));
+			addChange(create(graphChanges, p.getLeftSub(),p.getRightSub(),new Pair<Statement, Statement>(p.getLeftStm(), p.getRightStm())));
 		}
 	}
 	
@@ -40,7 +40,8 @@ public class UpdateList {
 	}
 
 	public void addChange(PropertyChange change) {
-		changes.add(change);
+	    if (!changes.contains(change))
+	        changes.add(change);
 	}
 	
 	public void removeChange(PropertyChange change) {