<!--
Copyright 2006 Stephen McConnell, DPML
Licensed  under the  Apache License,  Version 2.0  (the "License");
you may not use  this file  except in  compliance with the License.
You may obtain a copy of the License at 

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed  under the  License is distributed on an "AS IS" BASIS,
WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
implied.

See the License for the specific language governing permissions and
limitations under the License.
-->

<!--
The plugin element is the document root, it defines an instantiation strategy and 
classloader chain.

  title          Plugin title.
  description    Description of the plugin.
  strategy       The plugin instantiation strategy - the strategy element may 
                 contain an arbitary number of property elements.
  classpath      the classpath presented in terms of system, public, protected 
                 and private categories. Each category may contain an arbirary
                 number of uri elements.
-->

<!ELEMENT plugin ( title?, description?, strategy, classpath ) >
<!ATTLIST plugin version CDATA #REQUIRED xmlns CDATA #IMPLIED >

<!ELEMENT strategy ( categories?, context?, parts? ) >
<!ATTLIST strategy type CDATA #REQUIRED >
<!ATTLIST strategy lifestyle ( singleton | thread | transient ) "thread" >

<!ELEMENT categories EMPTY >

<!ELEMENT context ( entry* ) >
<!ATTLIST context class CDATA #IMPLIED >

<!ELEMENT entry ( value* ) >
<!ATTLIST entry key CDATA #REQUIRED value CDATA #IMPLIED >

<!ELEMENT parts ( component* ) >
<!ELEMENT component ( categories?, context?, parts? ) >
<!ATTLIST component key CDATA #REQUIRED >
<!ATTLIST component type CDATA #REQUIRED >
<!ATTLIST component lifestyle ( singleton | thread | transient ) "thread" >

<!ELEMENT title (#PCDATA) >
<!ELEMENT description (#PCDATA) >
<!ELEMENT classpath ( system?, public?, protected?, private? ) >
<!ELEMENT system ( uri* ) >
<!ELEMENT public ( uri* ) >
<!ELEMENT protected ( uri* ) >
<!ELEMENT private ( uri* ) >
<!ELEMENT uri (#PCDATA) >