public boolean transformFieldValue(Field f, Class<?> clazz) {
    return false;
  }
Controls if a pdx field's value can be transformed during serialization. Override this method
to customize what fields can have their values transformed. If you return true then you need to
also override {@link #writeTransform} and {@link #readTransform}.
<p>
The default implementation returns false.
<p>
This method is only called the first time it sees a new class. The result will be remembered
and used the next time the same class is seen.

@param f the field in question
@param clazz the original class being serialized that owns this field. Note that this field may
       have been inherited from a super class by this class. If you want to find the class that
       declared this field use {@link Field#getDeclaringClass()}.
@return true if the {@link #writeTransform} and {@link #readTransform} need to be called when
        serializing and deserializing this field's value.
@since GemFire 6.6.2
geode-core/src/main/java/org/apache/geode/pdx/ReflectionBasedAutoSerializer.java