ST6RI-856 isConstant not serialized in XMI for end Usages

org.omg.sysml.xtext/src/org/omg/sysml/xtext/validation/SysMLValidator.xtend

@@ -1,7 +1,7 @@
 /*****************************************************************************
  * SysML 2 Pilot Implementation
  * Copyright (c) 2020 California Institute of Technology/Jet Propulsion Laboratory
- * Copyright (c) 2020-2023 Model Driven Solutions, Inc.
+ * Copyright (c) 2020-2025 Model Driven Solutions, Inc.
  *    
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -143,11 +143,15 @@ import org.omg.sysml.lang.sysml.FlowUsage
  */
 class SysMLValidator extends KerMLValidator {
 
+	public static val INVALID_DEFINITION_VARIATION_IS_ABSTRACT = "validateDefinitionVariationIsAbstract"
+	public static val INVALID_DEFINITION_VARIATION_IS_ABSTRACT_MSG = "A variation must be abstract."
 	public static val INVALID_DEFINITION_VARIATION_MEMBERSHIP = "validateDefinitionVariationMembership"
 	public static val INVALID_DEFINITION_VARIATION_MEMBERSHIP_MSG = "An owned usage of a variation must be a variant."
 	public static val INVALID_DEFINITION_VARIATION_SPECIALIZATION = "validateDefinitionVariationSpecialization"
 	public static val INVALID_DEFINITION_VARIATION_SPECIALIZATION_MSG = "A variation must not specialize another variation."
 
+	public static val INVALID_USAGE_VARIATION_IS_ABSTRACT = "validateUsageVariationIsAbstract"
+	public static val INVALID_USAGE_VARIATION_IS_ABSTRACT_MSG = "A variation must be abstract."
 	public static val INVALID_USAGE_VARIATION_MEMBERSHIP = "validateUsageVariationMembership"
 	public static val INVALID_USAGE_VARIATION_MEMBERSHIP_MSG = "An owned usage of a variation must be a variant."
 	public static val INVALID_USAGE_VARIATION_SPECIALIZATION = "validateUsageVariationSpecialization"
@@ -476,6 +480,11 @@ class SysMLValidator extends KerMLValidator {
 		// validateUsageIsReferential is satisfied automatically
 
 		if (usage.isVariation) {
+			// validateUsageVariationIsAbstract			
+			if (!usage.isAbstract) {
+				error(INVALID_USAGE_VARIATION_IS_ABSTRACT_MSG, usage, null, INVALID_USAGE_VARIATION_IS_ABSTRACT)
+			}
+
 			// validateUsageVariationOwnedFeatureMembership
 			for (mem: usage.ownedFeatureMembership) {
 				// NOTE: Need to allow parameters and objectives because they are currently physically inserted by transform implementation.

org.omg.sysml/src/org/omg/sysml/adapter/DefinitionAdapter.java

@@ -1,6 +1,6 @@
 /*******************************************************************************
  * SysML 2 Pilot Implementation
- * Copyright (c) 2021, 2024 Model Driven Solutions, Inc.
+ * Copyright (c) 2021, 2024, 2025 Model Driven Solutions, Inc.
  *    
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -34,4 +34,13 @@ public Definition getTarget() {
 		return (Definition)super.getTarget();
 	}
 
+	@Override
+	public void postProcess() {
+		super.postProcess();
+		Definition target = getTarget();
+		if (target.isVariation()) {
+			target.setIsAbstract(true);
+		}
+	}
+
 }

org.omg.sysml/src/org/omg/sysml/adapter/UsageAdapter.java

@@ -1,6 +1,6 @@
 /*******************************************************************************
  * SysML 2 Pilot Implementation
- * Copyright (c) 2021-2024 Model Driven Solutions, Inc.
+ * Copyright (c) 2021-2025 Model Driven Solutions, Inc.
  *    
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by
@@ -53,6 +53,15 @@ public Usage getTarget() {
 
 	// Post-processing
 
+	@Override
+	public void postProcess () {
+		super.postProcess();
+		Usage target = getTarget();
+		if (target.isVariation()) {
+			target.setIsAbstract(true);
+		}
+	}
+
 	@Override
 	protected void setIsVariableIfConstant() {
 	}
@@ -197,8 +206,14 @@ protected void computeValueConnector() {
 	@Override
 	public void doTransform() {
 		super.doTransform();
-		if (UsageUtil.isVariant(getTarget())) {
+		Usage target = getTarget();
+		if (UsageUtil.isVariant(target)) {
 			addImplicitFeaturingTypesIfNecessary();
 		}
+
+		// Note: This cannot be done in postProcess, because of mayTimeVary computation.
+		if (target.isEnd() && mayTimeVary()) {
+			target.setIsConstant(true);
+		}
 	}
 }

org.omg.sysml/syntax-gen/org/omg/sysml/lang/sysml/impl/DefinitionImpl.java

@@ -784,15 +784,6 @@ public EList<VariantMembership> getVariantMembership() {
 		return (EList<VariantMembership>)VARIANT_MEMBERSHIP__ESETTING_DELEGATE.dynamicGet(this, null, 0, true, false);
 	}
 
-	// Additional Overrides
-
-	@Override
-	public boolean isAbstract() {
-		return isVariation() || super.isAbstract();
-	}
-
-	//
-
 	/**
 	 * <!-- begin-user-doc -->
 	 * <!-- end-user-doc -->

org.omg.sysml/syntax-gen/org/omg/sysml/lang/sysml/impl/UsageImpl.java

@@ -1046,21 +1046,11 @@ public boolean isSetIsVariable() {
 
 	// Additional overrides
 
-	@Override
-	public boolean isAbstract() {
-		return isVariation() || super.isAbstract();
-	}
-
 	@Override
 	public boolean isComposite() {
 		return UsageUtil.isComposite(this, isComposite);
 	}
 
-	@Override
-	public boolean isConstant() {
-		return isConstant || isEnd() && isMayTimeVary();
-	}
-
 	//
 
 	/**