From 961c51d828eace5c9ab9db9499f0af9a78f16192 Mon Sep 17 00:00:00 2001
From: Marko Luukkainen <marko.luukkainen@semantum.fi>
Date: Mon, 13 Jan 2020 11:20:24 +0200
Subject: [PATCH] Allow UpdateOps to describe parent resource

gitlab #21

Change-Id: Idef9b151b3719268e97c63a6376f0945a0a9a8d1
---
 .../simantics/interop/update/model/UpdateNode.java   |  5 +++++
 .../org/simantics/interop/update/model/UpdateOp.java | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateNode.java b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateNode.java
index b786586..54d6b2c 100644
--- a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateNode.java
+++ b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateNode.java
@@ -52,6 +52,11 @@ public class UpdateNode {
 	}
 	
 	public Resource getParentResource(ReadGraph g) throws DatabaseException {
+		if (op != null) {
+			Resource parent = op.getParentResource(g);
+			if (parent != null)
+				return parent;
+		}
 		Layer0 l0 = Layer0.getInstance(g);
 		return g.getPossibleObject(r, l0.PartOf);
 	}
diff --git a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateOp.java b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateOp.java
index 3b633c2..2bd3718 100644
--- a/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateOp.java
+++ b/org.simantics.interop.update/src/org/simantics/interop/update/model/UpdateOp.java
@@ -4,11 +4,13 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
+import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
 import org.simantics.db.Statement;
 import org.simantics.db.WriteGraph;
 import org.simantics.db.exception.DatabaseException;
 import org.simantics.interop.test.GraphChanges;
+import org.simantics.layer0.Layer0;
 
 /**
  * Base class for update operations (adding and deleting objects)  
@@ -60,11 +62,15 @@ public abstract class UpdateOp {
 	
 	public void addParentOp(UpdateOp op) {
 		assert (!op.equals(this));
+		if (parentOps.contains(op))
+			return;
 		parentOps.add(op);
 	}
 	
 	public void addSubOp(UpdateOp op) {
 		assert (!op.equals(this));
+		if (subOps.contains(op))
+			return;
 		subOps.add(op);
 	}
 	
@@ -212,6 +218,12 @@ public abstract class UpdateOp {
 	 */
 	public abstract Resource getCreatedResource();
 	
+	public Resource getParentResource(ReadGraph g) throws DatabaseException {
+		Layer0 l0 = Layer0.getInstance(g);
+		return g.getPossibleObject(getResource(), l0.PartOf);
+	}
+
+	
 	@Override
     public String toString() {
         String s = this.getClass().getSimpleName();
-- 
2.47.1