ryanwood / shade
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Description: Shade is a state machine (or workflow) engine for ColdFusion business objects.
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Clone URL: git://github.com/ryanwood/shade.git 
Updated README
ryanwood (author)
Mon Oct 13 07:39:46 -0700 2008
commit  b2457504eeba4e0ece295659fa26bc6ad909fba0
tree    0f86abde1f9ddcba0121b546234378d0f66a8e05
parent  0bdacba1386989f5809b763877b67038f0bf609a
shade / Event.cfc
100644 56 lines (46 sloc) 2.11 kb
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<cfcomponent displayname="Event" output="false">
 
	<cfset instance = structNew() />
 
	<cffunction name="init" access="public" output="false">
		<cfargument name="name" type="string" required="true" />
		<cfargument name="transitionTable" type="struct" required="true" />
		<cfscript>
			instance.name = arguments.name;
			arguments.transitionTable[arguments.name] = createObject("component", "shade.StateTransitionCollection").init();
			instance.transitions = arguments.transitionTable[arguments.name];
		</cfscript>			
		<cfreturn this />
	</cffunction>
 
	<cffunction name="addTransitions" access="public" output="false">
		<cfargument name="from" type="string" required="true" />
		<cfargument name="to" type="string" required="true" />
		<cfargument name="guard" type="string" required="false" default="" />
		<cfset var local = structNew() />
 
		<cfloop list="#arguments.from#" index="local.from">
			<cfset local.transition = createObject("component", "shade.StateTransition").init(local.from, arguments.to, arguments.guard) />
			<cfset instance.transitions.add(local.transition) />
		</cfloop>
 
		<cfreturn this />
	</cffunction>
 
	<cffunction name="fire" access="public" output="false">
		<cfargument name="obj" type="any" required="true" />
		<cfargument name="persistenceObject" required="false" />
		<cfargument name="persistenceMethod" required="false" />
		<cfset var i = 1 />
		<cfset var transitions = instance.transitions.getTransitionsFromState(arguments.obj.getCurrentState()) />
		<cfset transition = 0 />
 
		<cfset transitions.reset() />
		<cfloop condition="transitions.hasNext()">
			<cfset transition = transitions.next() />
			<cfif transition.perform(obj, arguments.persistenceObject, arguments.persistenceMethod)>
				<cfreturn true />
			</cfif>
		</cfloop>	
		<cfreturn false />	
	</cffunction>	
 
	<cffunction name="getName" access="public" returntype="string" output="false">
		<cfreturn instance.name />
	</cffunction>
 
	<cffunction name="getTransitions" access="public" returntype="string" output="false">
		<cfreturn instance.name />
	</cffunction>
 
</cfcomponent>