From 17d467c13f8efe0b5d851b0493ead9df124f84cf Mon Sep 17 00:00:00 2001
From: Reino Ruusu <reino.ruusu@semantum.fi>
Date: Mon, 25 Feb 2019 17:51:59 +0200
Subject: [PATCH] Added proper equals() implementations for validation
 compilation request

Fix to use of old value from cache while validating derived properties.

gitlab #252

Change-Id: I2adf76401dac90ddecc0bf2b3c222da6e242c2d2
---
 .../DerivedPropertiesSection.java             | 32 +++++++++++++++----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/DerivedPropertiesSection.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/DerivedPropertiesSection.java
index 0f7bff396..5f96c2ba9 100644
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/DerivedPropertiesSection.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/DerivedPropertiesSection.java
@@ -330,12 +330,7 @@ public class DerivedPropertiesSection implements ComponentTypeViewerSection {
         SCLContext sclContext = SCLContext.getCurrent();
         Object oldGraph = sclContext.get("graph");
         try {
-            CompileSCLMonitorRequest compileSCLMonitorRequest = new CompileSCLMonitorRequest(graph, context) {
-                @Override
-                protected String getExpressionText(ReadGraph graph) throws DatabaseException {
-                    return expression;
-                }
-            };
+            CompileSCLMonitorRequest compileSCLMonitorRequest = new ValidationCompilationRequest(graph, context, expression);
             Function1<Variable,Object> exp = graph.syncRequest(compileSCLMonitorRequest);
             sclContext.put("graph", graph);
             //return exp.apply(context.getParent(graph));
@@ -422,4 +417,29 @@ public class DerivedPropertiesSection implements ComponentTypeViewerSection {
         return 100.0;
     }
 
+    private static final class ValidationCompilationRequest extends CompileSCLMonitorRequest {
+        private final String expression;
+    
+        private ValidationCompilationRequest(ReadGraph graph, Variable context, String expression)
+                throws DatabaseException {
+            super(graph, context);
+            this.expression = expression;
+        }
+    
+        @Override
+        protected String getExpressionText(ReadGraph graph) throws DatabaseException {
+            return expression;
+        }
+    
+        @Override
+        public int hashCode() {
+            return super.hashCode() + 37 * expression.hashCode();
+        }
+    
+        @Override
+        public boolean equals(Object obj) {
+            return super.equals(obj) && ((ValidationCompilationRequest)obj).expression.equals(expression);
+        }
+    }
+
 }
\ No newline at end of file
-- 
2.43.2