Examples of org.apache.tapestry.services.ClassTransformation.claimField()

org.apache.tapestry.services.ClassTransformation.claimField()

Claims a field so as to ensure that only a single annotation is applied to any single field. When a transformation occurs (driven by a field annotation), the first thing that occurs is to claim the field, on behalf of the annotation. @param fieldName the name of the field that is being claimed @param tag a non-null object that represents why the field is being tagged (this is typically a specific annotation on the field) @throws IllegalArgumentException if the fieldName does not correspond to a declared instance field @throws IllegalStateException if the field is already claimed for some other tag


        List<String> unclaimed = ct.findUnclaimedFields();


        assertEquals(unclaimed, asList("_field1", "_field4", "_zzfield"));


        ct.claimField("_field4", "Fred");


        unclaimed = ct.findUnclaimedFields();


        assertEquals(unclaimed, asList("_field1", "_zzfield"));


        assertEquals(unclaimed, asList("_field1", "_zzfield"));


        try
        {
            ct.claimField("_field4", "Barney");
            unreachable();
        }
        catch (RuntimeException ex)
        {
            assertEquals(

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