rules.xsd

rule engine drools-2.0-beta-18

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
           targetNamespace="http://drools.org/rules"
           elementFormDefault="qualified"
           xmlns:rules="http://drools.org/rules">

  <xs:element name="rule-set">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="rules:abstractImport" minOccurs="0" maxOccurs="unbounded"/>
        
        <xs:element ref="rules:application-data" minOccurs="0" maxOccurs="unbounded"/>

        <xs:element minOccurs="0" maxOccurs="unbounded" ref="rules:rule" />
      </xs:sequence>

      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="description" type="xs:string"/>
    </xs:complexType>
  </xs:element>

  <xs:element name="rule">
    <xs:complexType>
      <xs:sequence>

        <xs:element name="parameter" maxOccurs="unbounded" >
          <xs:complexType>
            <xs:choice>
              <xs:element ref="rules:abstractClass" maxOccurs="unbounded"/>
              <xs:element ref="rules:class-field" maxOccurs="unbounded"/>
            </xs:choice>
            <xs:attribute name="identifier" use="required" type="xs:string"/>
          </xs:complexType>
        </xs:element>

        <xs:element ref="rules:abstractCondition" minOccurs="0" maxOccurs="unbounded" />

        <xs:element name="duration" minOccurs="0" >
          <xs:complexType>
            <xs:attribute name="days"    type="xs:nonNegativeInteger"/>
            <xs:attribute name="hours"   type="xs:nonNegativeInteger"/>
            <xs:attribute name="minutes" type="xs:nonNegativeInteger"/>
            <xs:attribute name="seconds" type="xs:nonNegativeInteger"/>
          </xs:complexType>
        </xs:element>

      <xs:element ref="rules:abstractConsequence"/>

      </xs:sequence>
      <xs:attribute name="name" use="required" type="xs:string"/>
      <xs:attribute name="salience"            type="xs:integer"/>
      <xs:attribute name="no-loop"             type="xs:boolean"/>
      <xs:attribute name="description"         type="xs:string"/>
    </xs:complexType>

    <!-- All rules must have unique names -->
    <xs:key name="ruleName">
      <xs:selector xpath="rules:rule" />
      <xs:field xpath="@name" />
    </xs:key>
  </xs:element>

  <xs:element name="class"       type="xs:string" substitutionGroup="rules:abstractClass"/>

  <xs:element name="class-field">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:string">
          <xs:attribute name="field" type="xs:string" use="required"/>
          <xs:attribute name="value" type="xs:string" use="required"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:element name="application-data" >
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:string">
          <xs:attribute name="identifier" type="xs:string" use="required"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>    

  <!-- Abstract Definitions for sementic to create concrete implementations -->

  <xs:element name="abstractImport"      type="xs:anyType"           abstract="true"/>

  <xs:element name="abstractClass"       type="xs:anyType"           abstract="true"/>

  <xs:element name="abstractClassField"  type="xs:anyType"           abstract="true"/>

  <xs:element name="abstractCondition"   type="xs:anyType"           abstract="true"/>

  <xs:element name="abstractConsequence" type="xs:anyType"           abstract="true"/>

</xs:schema>