workflow_2_8.dtd

OSWorkflow的开发指南与中文手册

<?xml version="1.0" encoding="UTF-8"?>
<!--
The main workflow element. A workflow includes a set of meta properties that are global, as well as global registers
and trigger functions. It also defines a set of initial actions that are available to kick off the workflow.
The global actions are actions that can be executed from any step. They are available to all steps.
common-actions are actions that can be reused in steps. They are specified here, and a step can optionally
refer to a common-action to make it available. Note that all actions id's must be globally unique.

A workflow consists of a number of steps, split definitions that determine the states to move to within a split,
and join definitions to determine the conditions and steps for a join.
-->
<!ELEMENT workflow (meta*, registers?, trigger-functions?, global-conditions?, initial-actions, global-actions?, common-actions?, steps, splits?, joins?)>
<!--
An action that can be executed. The action id must be unique for the entire workflow definition, and
not just within the enclosing step.

Attributes:

id: a unique ID in the workflow descriptor. Note that ID's have to be globally unique, and not just within a step's
actions.

name: a name for the action

view: a view name for the action

auto: can be true or false. If true, then the action is executed automatically when the following conditions
are met:

- the workflow enters the step that this action is in
- all the conditions and restrictions for the action are satisfied

Note that within a step, only ONE auto action is performed per workflow transition. So if more than one
action satisfies the above criteria, only the first match (in xml file order) is matches.

finish: Whether this action is a terminal one. A terminal action causes all current steps to be ended and
moved to history, and the workflow instance status set to COMPLETED.

Used in: actions
-->
<!ELEMENT action (meta*, restrict-to? , validators?, pre-functions?, results, post-functions?)>
<!ATTLIST action
	id CDATA #REQUIRED
	name CDATA #REQUIRED
  view CDATA #IMPLIED
  auto (TRUE | FALSE | true | false) #IMPLIED
  finish (TRUE | FALSE | true | false) #IMPLIED
>

<!--
	A common (shared) action reference that references an action defined in the 'common-actions' element

Used in: actions
-->
<!ELEMENT common-action (#PCDATA)>
<!ATTLIST common-action
	id CDATA #REQUIRED
>

<!--
A list of zero or more common-actions and a list of zero or more actions for the enclosing step.
Note that you must define one or the other, an actions element with neither will be considered
invalid.
Used in: step
-->
<!ELEMENT actions (common-action*, action*)>
<!--
An argument to a function. The value of the argument is interpolated,
so if the variable foo equals "bar", then the value "test ${foo}" will be
read as "test bar".

Used in: function
-->
<!ELEMENT arg (#PCDATA)>
<!ATTLIST arg
	name CDATA #REQUIRED
>

<!--
Holds one or more condition elements and defined if AND or OR logic
should be used to evaluate them all together.

Use in: join, restrict-to, result
-->
<!ELEMENT conditions (conditions | condition)*>
<!ATTLIST conditions
	type (AND | OR) #IMPLIED
>
<!--
A condition.

Used in: conditions
-->
<!ELEMENT condition (arg*)>
<!ATTLIST condition
	type CDATA #REQUIRED
  id CDATA #IMPLIED
  negate CDATA #IMPLIED
  name CDATA #IMPLIED
>
<!--
A group of permissions that are outside the scope of workflow but
are related to the entity attached to the workflow.

Used in: step
-->
<!ELEMENT external-permissions (permission+)>
<!--
A function that is executed automatically by OSWorkflow.
See documentation for what arguments (if any) are required
for the function type you choose.

Used in: pre-functions, post-functions
-->
<!ELEMENT function (arg*)>
<!ATTLIST function
	type CDATA #REQUIRED
  id CDATA #IMPLIED
  name CDATA #IMPLIED
>
<!--
A list of global actions that can be excuted on any step.

Used in: workflow
-->
<!ELEMENT global-actions (action+)>


<!--
A list of initialization actions that can take place before any state
is given to a workflow instance.

Used in: workflow
-->
<!ELEMENT initial-actions (action+)>

<!--
A list of common (shared) actions that can be included in any step by simply declaring an action
tag with an id attribute and no action body. This allows for the refactoring of actions that are included
in multiple steps.

Used in: workflow
-->
<!ELEMENT common-actions (action+)>

<!--
A place where two or more current states can transition in to a single,
new current state. The unconditional-result MUST be a real step/status
combo, not another join or split. The join does not take place until the
conditions evaluate to true.

Used in: joins
-->
<!ELEMENT join (conditions, unconditional-result)>
<!ATTLIST join
	id CDATA #REQUIRED
>
<!--
A list of join elements.

Used in: workflow
-->
<!ELEMENT joins (join*)>
<!--
A static meta property of the workflow, action, or step.

Used in: workflow, step, action
-->
<!ELEMENT meta (#PCDATA)>
<!ATTLIST meta
	name CDATA #REQUIRED
>
<!--
An external permission.

Used in: external-permissions
-->
<!ELEMENT permission (restrict-to)>
<!ATTLIST permission
	name CDATA #REQUIRED
  id CDATA #IMPLIED
>
<!--
A list of functions that are called after the transition has been made
from one state in the workflow to a new state.

Used in: action, result, unconditional-result
-->
<!ELEMENT post-functions (function+)>
<!--
A list of functions that are called before the transition has been made
from one state in the workflow to a new state.

Used in: action, result, unconditional-result
-->
<!ELEMENT pre-functions (function+)>
<!--
A class that puts a variable in the scope of all functions and validators.

Used in: registers
-->
<!ELEMENT register (arg*)>
<!ATTLIST register
	type CDATA #REQUIRED
	variable-name CDATA #REQUIRED
  id CDATA #IMPLIED
>
<!--
A list of registers.

Used in: workflow
-->
<!ELEMENT registers (register+)>
<!--
A restriction for actions and permissions. It can be based on group
membership, as well as the current workflow status. Also, it can
restrict based on if the caller is the owner or not.

Used in: action, permission
-->
<!ELEMENT restrict-to (conditions?)>
<!--
A conditional result of an action. The result only happens if the
beanshell evaluation of "condition" is true.

Used in: results
-->
<!ELEMENT result (conditions, validators?, pre-functions?, post-functions?)>
<!ATTLIST result
	old-status CDATA #REQUIRED
	status CDATA #IMPLIED
	step CDATA #IMPLIED
	owner CDATA #IMPLIED
	split CDATA #IMPLIED
  join CDATA #IMPLIED
  due-date CDATA #IMPLIED
  id CDATA #IMPLIED
  display-name CDATA #IMPLIED
>
<!--
A list of optional conditional results and a single uncondition result.

Used in: action
-->
<!ELEMENT results (result*, unconditional-result)>
<!--
A place where one current state can transition in to
one or more current states. The result of all these new states
must be a real step/status combo, NOT another split or a join.

Used in: splits
-->
<!ELEMENT split (unconditional-result+)>
<!ATTLIST split
	id CDATA #REQUIRED
>
<!--
List of split elements.

Used in: workflow
-->
<!ELEMENT splits (split+)>
<!--
A unique step in the workflow (id must be unique among steps).

Used in: steps
-->
<!ELEMENT step (meta*, pre-functions?, external-permissions?, actions?, post-functions?)>
<!ATTLIST step
	id CDATA #REQUIRED
	name CDATA #REQUIRED
>
<!--
A list of steps contained in this workflow definition.

Used in: workflow
-->
<!ELEMENT steps (step+)>
<!--
A result that has no conditions. If all conditional results fail, this is the
default result.
-->
<!ELEMENT unconditional-result (validators?, pre-functions?, post-functions?)>
<!ATTLIST unconditional-result
	old-status CDATA #REQUIRED
	status CDATA #IMPLIED
	step CDATA #IMPLIED
	owner CDATA #IMPLIED
	split CDATA #IMPLIED
	join CDATA #IMPLIED
  due-date CDATA #IMPLIED
  id CDATA #IMPLIED
  display-name CDATA #IMPLIED
>
<!--
A function that has a unique ID and is called by an external job scheduler.

Used in: trigger-functions
-->
<!ELEMENT trigger-function (function)>
<!ATTLIST trigger-function
	id CDATA #REQUIRED
>
<!--
A list of trigger functions.

Used in: workflow
-->
<!ELEMENT trigger-functions (trigger-function+)>
<!--
A class or script that validates user input.
See documentation for what arguments (if any) are required
for the function type you choose.

Used in: validators
-->
<!ELEMENT validator (arg*)>
<!ATTLIST validator
	type CDATA #REQUIRED
  name CDATA #IMPLIED
  id CDATA #IMPLIED
>
<!--
A list of validators.

Used in: action, intial-step, result, unconditional-result
-->
<!ELEMENT validators (validator+)>

<!--
A list of global condition that are checked for every action.

Used in: workflow
-->
<!ELEMENT global-conditions (conditions?)>