DPML
DPML Part Directive
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Strategy XML Directive
Description

The StrategyType definition is an abstract element definition that all concrete strategy defintions must extend.

    <!-- XSD schema definition -->
    <complexType name="StrategyType" abstract="true"/>

The Metro runtime model defines a concrete component strategy under the dpml:metro namespace that is used to define the resources, services, and internal composition of an object. A second concrete strategy defintion named resource (uder the dpml:antlib namespace) is used by the Depot build system to define antlib loading criteria. If a foreign strategy element is declared the associated schema is resolved by locating a class implementing the org.w3c.dom.ls.LSResourceResolver service (via java.util.ServiceLoader). The runtime strategy handler will be resolved by reading a uri value from an attribute named handler. The uri is used to identify a plug-in part supporting the runtime handling of the foreign strategy.

Examples

Example part definition using the <component> strategy:

<?xml version="1.0"?>

<part xmlns="dpml:part">

  <info/>

  <component xmlns="dpml:metro" class="org.acme.Widget"/>

  <classpath>
    <private>
      <uri>artifact:jar:acme/widget/acme-widget#1.2.3</uri>
    </private>
  </classpath>

</part>