Workflow/design/schema.rng

<?xml version="1.0" encoding="UTF-8"?>

<grammar xmlns="http://relaxng.org/ns/structure/1.0"
         datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
 <start>
  <ref name="workflow"/>
 </start>

 <define name="workflow">
  <element name="workflow">
   <attribute name="name">
    <data type="string"/>
   </attribute>
   <attribute name="version">
    <data type="integer"/>
   </attribute>
   <zeroOrMore>
    <ref name="node"/>
   </zeroOrMore>
   <zeroOrMore>
    <ref name="variableHandler"/>
   </zeroOrMore>
  </element>
 </define>

 <define name="node">
  <element name="node">
   <attribute name="id">
    <data type="integer"/>
   </attribute>
   <attribute name="type">
    <data type="string"/>
   </attribute>
   <optional>
    <attribute name="serviceObjectClass">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="subWorkflowName">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <element name="in">
     <oneOrMore>
      <element name="variable">
       <attribute name="name">
        <data type="string"/>
       </attribute>
       <attribute name="as">
        <data type="string"/>
       </attribute>
      </element>
     </oneOrMore>
    </element>
    <element name="out">
     <oneOrMore>
      <element name="variable">
       <attribute name="name">
        <data type="string"/>
       </attribute>
       <attribute name="as">
        <data type="string"/>
       </attribute>
      </element>
     </oneOrMore>
    </element>
   </optional>
   <optional>
    <attribute name="variable">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="operand">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <ref name="arguments"/>
   </optional>
   <optional>
    <oneOrMore>
     <ref name="condition"/>
    </oneOrMore>
   </optional>
   <optional>
    <oneOrMore>
     <element name="variable">
      <attribute name="name">
       <data type="string"/>
      </attribute>
      <optional>
       <ref name="condition"/>
      </optional>
      <optional>
       <ref name="variable"/>
      </optional>
     </element>
    </oneOrMore>
   </optional>
   <optional>
    <oneOrMore>
     <ref name="outNode"/>
    </oneOrMore>
   </optional>
  </element>
 </define>

 <define name="outNode">
  <element name="outNode">
   <attribute name="id">
    <data type="integer"/>
   </attribute>
  </element>
 </define>

 <define name="condition">
  <element name="condition">
   <attribute name="type">
    <data type="string"/>
   </attribute>
   <optional>
    <attribute name="a">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="b">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="name">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="value">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <attribute name="variable">
     <data type="string"/>
    </attribute>
   </optional>
   <optional>
    <ref name="array"/>
   </optional>
   <optional>
    <oneOrMore>
     <ref name="condition"/>
    </oneOrMore>
   </optional>
   <optional>
    <ref name="outNode"/>
   </optional>
   <optional>
    <ref name="else"/>
   </optional>
  </element>
 </define>

 <define name="else">
  <element name="else">
   <ref name="outNode"/>
  </element>
 </define>

 <define name="variableHandler">
  <element name="variableHandler">
   <attribute name="variable">
    <data type="string"/>
   </attribute>
   <attribute name="class">
    <data type="string"/>
   </attribute>
  </element>
 </define>

 <define name="arguments">
  <element name="arguments">
   <zeroOrMore>
    <ref name="variable"/>
   </zeroOrMore>
  </element>
 </define>

 <define name="variable">
  <choice>
   <ref name="array"/>
   <ref name="boolean"/>
   <ref name="double"/>
   <ref name="integer"/>
   <ref name="null"/>
   <ref name="object"/>
   <ref name="string"/>
  </choice>
 </define>

 <define name="array">
  <element name="array">
   <zeroOrMore>
    <ref name="element"/>
   </zeroOrMore>
  </element>
 </define>

 <define name="element">
  <element name="element">
   <attribute name="key">
    <data type="string"/>
   </attribute>
   <ref name="variable"/>
  </element>
 </define>

 <define name="boolean">
  <element name="boolean">
   <data type="string"/>
  </element>
 </define>

 <define name="double">
  <element name="double">
   <data type="double"/>
  </element>
 </define>

 <define name="integer">
  <element name="integer">
   <data type="integer"/>
  </element>
 </define>

 <define name="null">
  <element name="null">
    <text/>
  </element>
 </define>

 <define name="object">
  <element name="object">
   <attribute name="class">
    <data type="string"/>
   </attribute>
   <optional>
    <ref name="arguments"/>
   </optional>
  </element>
 </define>

 <define name="string">
  <element name="string">
   <data type="string"/>
  </element>
 </define>
</grammar>