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SDO_Model_Type::isOpenType — Test to see if this type is an open type
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
   Test to see if this type is open.
   Returns TRUE if this type is open, otherwise returns FALSE.  An 
   SDO_DataObject whose type is open can have properties added to them which 
   are not described by the type.  This capability is used to support 
   working with XML documents whose schema support open content, such as that 
   defined by an 
<xsd:any>
None.
   Returns TRUE if this type is open, otherwise returns FALSE.