mercury-1.0.0-alpha-2/mercury-repo/mercury-repo-cache-fs/src/main/mdo/cached-metadata.mdo

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<model>
  <id>cached-metadata</id>
  
  <name>CachedMetadata</name>
  <description>Per-directory repository metadata.</description>
  
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.mercury.repository.cache.md</value>
    </default>
  </defaults>
  
  <classes>

    <class rootElement="true">
      <name>CachedRawMetadata</name>
      <version>1.0.0</version>
      <fields>
        
        <field>
          <name>lastUpdated</name>
          <version>1.0.0</version>
          <type>String</type>
          <description>When the metadata was last updated</description>
        </field>
        
        <field>
          <name>elements</name>
          <version>1.0.0</version>
          <description>group of metadata elements</description>
          <association>
            <type>Element</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
     </class>

    <class>
      <name>Element</name>
      <version>1.0.0</version>
      <description>metadata element</description>
      <fields>
        <field>
          <name>name</name>
          <version>1.0.0</version>
          <description>name of this element</description>
          <type>String</type>
        </field>
        
        <field>
          <name>attributes</name>
          <version>1.0.0</version>
          <description>group of metadata element attributes</description>
          <association>
            <type>Attribute</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>

        <field>
          <name>elements</name>
          <version>1.0.0</version>
          <description>group of metadata element elements</description>
          <association>
            <type>Element</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>

      </fields>
    </class>

    <class>
      <name>Attribute</name>
      <version>1.0.0</version>
      <description>generic attribute - name/value pair</description>
      <fields>
        <field>
          <name>name</name>
          <type>String</type>
          <required>true</required>
          <version>1.0.0</version>
          <description>name of this attribute</description>
        </field>
        <field>
          <name>value</name>
          <type>String</type>
          <required>true</required>
          <version>1.0.0</version>
          <description>value of this attribute</description>
        </field>
      </fields>
    </class>
    
  </classes>
</model>