RE: nilable and validate()

[Cezar Andrei]

There is an earlier discussion on this topic, please see:   http://www.mail-archive.com/user@xmlbeans.apache.org/msg00512.html   Cezar   From: Samuel B. Quiring [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 25, 2005 3:10 PM To: user@xmlbeans.apache.org Subject: nilable and validate()   Greetings,   I have a schema fragment that looks like this:   <xs:complexType name="HumanNameDataType">     <xs:sequence>          <xs:element name="PrefixName" type="glob:StringMin1Max10Type" minOccurs="0"/>          <xs:element name="FirstName" type="glob:StringMin1Max35Type"/>          <xs:element name="MiddleName" type="glob:StringMin1Max25Type" minOccurs="0"/>          <xs:element name="LastName" type="glob:StringMin1Max60Type"/>          <xs:element name="SuffixName" type="glob:StringMin1Max10Type" minOccurs="0"/>     </xs:sequence> </xs:complexType>   I'm calling validate() to verify the java object after I fill it with values.  For the three fields with minOccurs="0", if I set value to null validate returns this error:   validation error: <xml-fragment xmlns:glob="http://apply.grants.gov/system/GlobalLibrary-V1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">     <glob:PrefixName>Dr.</glob:PrefixName>     <glob:FirstName>Emmet</glob:FirstName>     <glob:MiddleName>T</glob:MiddleName>     <glob:LastName>Brown</glob:LastName>     <glob:SuffixName xsi:nil="true"/> </xml-fragment>,[EMAIL PROTECTED] [EMAIL PROTECTED] validationerror: error: cvc-elt.3.1: Element has xsi:nil attribute but is not nillable   To deal with this I tried setting the value 3 different ways:   name.setSuffixName(null);   -- see above error name.setSuffixName("");     -- min string length must be 1 do nothing                  -- this works.   Only if I did nothing did validate() report no errors.   What is the difference between setting a value to null and not setting a value at all?  Is there a configuration parameter I can use to say "setting a value to null is the same as not setting it?"   Is this behavior documented somewhere?  I searched the docs but couldn't find anything, but I probably missed it.   -Sam