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https://issues.apache.org/jira/browse/XMLBEANS-379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13080621#comment-13080621
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Robert Liguori commented on XMLBEANS-379:
-----------------------------------------
I've conversed through e-mail with the creator of this JIRA issue.
He noted the following in regards to recreating the issue:
"Reproducing the issue is a matter of finding the HL7 v3 schemas (never a
simple task; possibly available somewhere here
[http://www.hl7.org/v3ballot/html/index.htm]), running them through XmlBeans
and then calling set_String on an instance of EnFamily. Assuming that EnFamily
is still defined as being empty with a non-empty ancestor you should be able to
reproduce the bug."
> SimpleValue interface doesn't work for empty types that are extensions of
> mixed non-empty types
> -----------------------------------------------------------------------------------------------
>
> Key: XMLBEANS-379
> URL: https://issues.apache.org/jira/browse/XMLBEANS-379
> Project: XMLBeans
> Issue Type: Bug
> Environment: Windows XP, JDK 1.5.0_16, XmlBeans version 2.4.0 (not
> available in the list above).
> Reporter: David Gileadi
> Priority: Minor
>
> I'm working with the HL7 v3 schemas. Types like en.family:
> <xsd:complexType name="en.family" mixed="true">
> <xsd:complexContent>
> <xsd:restriction base="ENXP">
> <xsd:attribute name="partType" type="EntityNamePartType"
> fixed="FAM"/>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
> are mixed, but have no element children in their definition. However, in
> this case the grandparent type, ST, does have element children:
> <xsd:complexType name="ST" mixed="true">
> <xsd:annotation>
> <xsd:documentation>
> The character string data type stands for text data, primarily
> intended for machine processing (e.g., sorting, querying, indexing,
> etc.) Used for names, symbols, and formal expressions.
> </xsd:documentation>
> <xsd:appinfo>
> <sch:pattern xmlns:sch="http://www.ascc.net/xml/schematron";
> name="validate ST">
> <sch:rule abstract="true" id="rule-ST">
> <sch:report test="(@nullFlavor or text()) and
> not(@nullFlavor and text())">
> <p xmlns:hl7="urn:hl7-org:v3"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:gsd="http://aurora.regenstrief.org/GenericXMLSchema";
> xmlns:xlink="http://www.w3.org/TR/WD-xlink";>Text content is only allowed in
> non-NULL values.</p>
> </sch:report>
> </sch:rule>
> </sch:pattern>
> </xsd:appinfo>
> </xsd:annotation>
> <xsd:complexContent>
> <xsd:restriction base="ED">
> <xsd:sequence>
> <xsd:element name="reference" type="TEL" minOccurs="0"
> maxOccurs="0"/>
> <xsd:element name="thumbnail" type="ED" minOccurs="0"
> maxOccurs="0"/>
> </xsd:sequence>
> <xsd:attribute name="representation"
> type="token_BinaryDataEncoding" fixed="TXT"/>
> <xsd:attribute name="mediaType" type="cs" fixed="text/plain"/>
> <xsd:attribute name="language" type="cs" use="optional"/>
> <xsd:attribute name="compression" type="CompressionAlgorithm"
> use="prohibited"/>
> <xsd:attribute name="integrityCheck" type="bin" use="prohibited"/>
> <xsd:attribute name="integrityCheckAlgorithm"
> type="IntegrityCheckAlgorithm" use="prohibited"/>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
> and its ancestors do too.
> I'm trying to use the SimpleValue interface to get/set the string value of a
> generated EnFamily class (and others). However, the SchemaType for EnFamily
> has a contentType of EMPTY_CONTENT, not MIXED_CONTENT. And
> XmlComplexContentImpl.set_String() throws an IllegalArgumentException if you
> try to set the string value to a type that isn't no type or MIXED_CONTENT.
> I think that either the type system should change to define a new
> MIXED_EMPTY_CONTENT type or XmlComplexContentImpl should change to check the
> ancestor types to see whether they're mixed before throwing the
> IllegalArgumentException.
> The workaround I'm using is to add an extension to classes like EnFamily that
> I need to get/set text in, and using an XmlCursor to get/set the text value.
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