1.1 --- a/json/src/main/java/org/netbeans/html/json/spi/Proto.java	Mon Feb 22 06:09:33 2016 +0100
     1.2 +++ b/json/src/main/java/org/netbeans/html/json/spi/Proto.java	Mon Feb 22 19:58:32 2016 +0100
     1.3 @@ -512,7 +512,7 @@
     1.4              PropertyBinding[] pb = new PropertyBinding[type.propertyNames.length];
     1.5              for (int i = 0; i < pb.length; i++) {
     1.6                  pb[i] = b.registerProperty(
     1.7 -                    type.propertyNames[i], i, obj, type, type.propertyReadOnly[i]
     1.8 +                    type.propertyNames[i], i, obj, type, type.propertyType[i]
     1.9                  );
    1.10              }
    1.11              FunctionBinding[] fb = new FunctionBinding[type.functions.length];
    1.12 @@ -551,7 +551,7 @@
    1.13      public static abstract class Type<Model> {
    1.14          private final Class<Model> clazz;
    1.15          private final String[] propertyNames;
    1.16 -        private final boolean[] propertyReadOnly;
    1.17 +        private final byte[] propertyType;
    1.18          private final String[] functions;
    1.19  
    1.20          /** Constructor for subclasses generated by the annotation processor
    1.21 @@ -573,7 +573,7 @@
    1.22              }
    1.23              this.clazz = clazz;
    1.24              this.propertyNames = new String[properties];
    1.25 -            this.propertyReadOnly = new boolean[properties];
    1.26 +            this.propertyType = new byte[properties];
    1.27              this.functions = new String[functions];
    1.28              JSON.register(clazz, this);
    1.29          }
    1.30 @@ -588,7 +588,29 @@
    1.31          protected final void registerProperty(String name, int index, boolean readOnly) {
    1.32              assert propertyNames[index] == null;
    1.33              propertyNames[index] = name;
    1.34 -            propertyReadOnly[index] = readOnly;
    1.35 +            propertyType[index] = (byte) (readOnly ? 1 : 0);
    1.36 +        }
    1.37 +
    1.38 +        /** Registers property for the type. It is expected each index
    1.39 +         * is initialized only once. The difference between <code>readOnly</code>
    1.40 +         * and <code>constant</code> is: The <code>constant</code> value is
    1.41 +         * assigned only at the beginning and never changed then - like the
    1.42 +         * {@link Property#mutable() non-mutable} property. On the other
    1.43 +         * hand, a <code>readOnly</code> property can change its value,
    1.44 +         * but not via a setter - just like {@link ComputedProperty}.
    1.45 +         *
    1.46 +         * @param name name of the property
    1.47 +         * @param index index of the property
    1.48 +         * @param readOnly is the property read only?
    1.49 +         * @param constant is the property assigned once and never changed again?
    1.50 +         * @since 1.3
    1.51 +         */
    1.52 +        protected final void registerProperty(
    1.53 +            String name, int index, boolean readOnly, boolean constant
    1.54 +        ) {
    1.55 +            assert propertyNames[index] == null;
    1.56 +            propertyNames[index] = name;
    1.57 +            propertyType[index] = (byte) ((readOnly ? 1 : 0) | (constant ? 2 : 0));
    1.58          }
    1.59  
    1.60          /** Registers function of given name at given index.