From: Peter Meulmeester <pmeulmeester_at_CATLOGIC.COM>
Date: Fri, 27 Jun 2003 03:42:29 -0600

Hi,

I have grasped the basics of Jaxb but am stuck describing my XML structure to Jaxb in a schema. It concerns the <segment> tag in the following XML file:

<?xml version="1.0"?>
<screen id="name" numoffields="2">
 <fields>
  <field id="field1" editlength="8"/>
  <field id="field2" editlength="8"/>
 </fields>
 <keys>
  <key id="key1" length="8">
   <segment id="segment1"/>
   <segment id="segment2"/>
  </key>
  <key id="key2" length="8">
   <segment id="segment1"/>
   <segment id="segment2"/>
  </key>
 </keys>
</screen>


The <segment> tag is not surrounded by a <segments> tags like <field> is surrounded by a <fields> tag.

How to I get the <segment> tags to be placed in a list in the <key> class/object? I keep on getting various jaxb compile errors with all my trials.

best regards,
Peter


My current xsd file (without trying to include <segment> in key.):

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
 jxb:version="1.0">

<xsd:element name="screen" type="Screen2"/>

<xsd:complexType name="Screen2">
  <xsd:sequence>
    <xsd:element name="fields" type="Fields"/>
    <xsd:element name="keys" type="Keys"/>
  </xsd:sequence>
  <xsd:attribute name="id" type="xsd:string" use="required"/>
  <xsd:attribute name="numoffields" type="xsd:int" use="required"/>

</xsd:complexType>

<xsd:complexType name="Fields">
<xsd:annotation>
  <xsd:appinfo>
    <jxb:property
        collectionType="java.util.ArrayList"
     />
  </xsd:appinfo>
</xsd:annotation>

  <xsd:sequence>
    <xsd:element name="field" minOccurs="1" maxOccurs="unbounded">
    <xsd:complexType>
      <xsd:attribute name="id" type="xsd:string" use="required"/>
      <xsd:attribute name="editlength" type="xsd:int" use="required"/>
      <xsd:attribute name="visible" type="xsd:boolean" default="true"/>
      </xsd:complexType>
    </xsd:element>
  </xsd:sequence>
</xsd:complexType>

<xsd:complexType name="Keys">
<xsd:annotation>
  <xsd:appinfo>
    <jxb:property
        collectionType="java.util.ArrayList"
     />
  </xsd:appinfo>
</xsd:annotation>

  <xsd:sequence>
    <xsd:element name="key" minOccurs="0" maxOccurs="unbounded">
    <xsd:complexType>

      <xsd:attribute name="id" type="xsd:string" use="required"/>
      <xsd:attribute name="length" type="xsd:int" use="required"/>
      <xsd:attribute name="searchable" type="xsd:boolean" default="true"/>
      </xsd:complexType>

    </xsd:element>
  </xsd:sequence>

</xsd:complexType>

<xsd:complexType name="Segment">
        <xsd:attribute name="id" type="xsd:string" use="required"/>
        <xsd:attribute name="length" type="xsd:int" default="0"/>
 default="true"/>
</xsd:complexType>


</xsd:schema>