The optional configuration tag allows the declaration of a validation schema with a component type.

/**
 * Configuration of the component by the container.
 * @param config the configuration instance
 * @exception ConfigurationException if error occurs
 * @avalon.configuration schema="your-schema-spec"
 */
public void configure( Configuration config ) throws ConfigurationException
{
  ...
}

Generated meta-info type descriptor:

<type>
  <info>
    <schema>your-schema-spec</schema>
  </info>
</type>