Configuration

Example

The following example demonstrates the creation of an arbitary XML configuration directive. The configuration element supports any user supplied attribute and any user supplied element name.

<component xmlns="dpml:metro" dest="target/test/config.part" test="true" activation="true"
    type="net.dpml.test.config.ConfigurableComponent" collection="hard">
  <configuration name="fred">
    <place>Cafe d'Orleans</place>
    <item name="breakfast" value="Cafe et Crossant"/>
    <item name="lunch" value="Salade de Sud-Oust"/>
    <item name="dinner" value="Margret de Canard"/>
  </configuration>
</component>

Technical Notes

The declaration of a configuration presumes that the component implementation declares a constructor argument that is type assignable to an instance of Configuration (a.k.a. the classic Avalon style configuration object).

public class ConfigurableComponent
{
    private final Configuration m_config;

    public ConfigurableComponent( Configuration config )
    {
        m_config = config;
    }
    
    ...
}