@Override protected void initDeclaredMask(BuildContext context, LeftTupleSource leftInput) { if (context == null || context.getLastBuiltPatterns() == null) { // only happens during unit tests rightDeclaredMask = Long.MAX_VALUE; super.initDeclaredMask(context, leftInput); return; } if (!(rightInput instanceof RightInputAdapterNode)) { Pattern pattern = context.getLastBuiltPatterns()[0]; // right input pattern ObjectType objectType = pattern.getObjectType(); if (!(objectType instanceof ClassObjectType)) { // InitialFact has no type declaration and cannot be property specific // Only ClassObjectType can use property specific rightDeclaredMask = Long.MAX_VALUE; } Class objectClass = ((ClassObjectType) objectType).getClassType(); if (isPropertyReactive(context, objectClass)) { rightListenedProperties = pattern.getListenedProperties(); List<String> settableProperties = getSettableProperties(context.getRuleBase(), objectClass); rightDeclaredMask = calculatePositiveMask(rightListenedProperties, settableProperties); rightDeclaredMask |= constraints.getListenedPropertyMask(settableProperties); rightNegativeMask = calculateNegativeMask(rightListenedProperties, settableProperties); } else { // if property reactive is not on, then accept all modification propagations rightDeclaredMask = Long.MAX_VALUE; } } else { rightDeclaredMask = Long.MAX_VALUE; // There would have been no right input pattern, so swap current to first, so leftInput can // still work context.setLastBuiltPattern(context.getLastBuiltPatterns()[0]); } super.initDeclaredMask(context, leftInput); }