Demonstrates inheritance, composition, mixins, and patches in ColdFusion. The article that corresponds to these code snippets can be found here: http://www.hitthebits.com/2013/05/coldfusion-code-reuse.html

htb-35cf-1a.cfc

<!--- EggLayer.cfc --->
<cfcomponent>
	<cffunction name="layEggs">
		<cfargument name="count" />
		<cfreturn "I just laid #count# eggs." />
	</cffunction>
</cfcomponent>

htb-35cf-1b.cfc

<!--- Duck.cfc and Platypus.cfc --->
<cfcomponent extends="EggLayer">
	<!--- ...elided... --->
</cfcomponent>

htb-35cf-2.cfc

<!--- Duck.cfc and Platypus.cfc --->
<cfcomponent>

	<cfset variables.eggLayer = new EggLayer() />

	<cffunction name="layEggs">
		<cfargument name="count" />
		<cfreturn variables.eggLayer.layEggs(arguments.count) />
	</cffunction>

</cfcomponent>

htb-35cf-3a.cfm

<!--- eggLayer.cfm --->
<cffunction name="layEggs">
	<cfargument name="count" />
	<cfreturn "I just laid #count# eggs." />
</cffunction>

htb-35cf-3b.cfc

<!--- Duck.cfc and Platypus.cfc --->
<cfcomponent>
	<cfinclude template="eggLayer.cfm" />
	<!--- the rest of the class is elided --->
</cfcomponent>

htb-35cf-4a.cfc

<!--- Duck.cfc and Platypus.cfc --->
<cfcomponent>
	<!--- No change to these files is required --->
</cfcomponent>

htb-35cf-4b.cfm

<!--- index.cfm, or maybe some factory class --->
<cffunction name="layEggs">
	<cfargument name="count" />
	<cfreturn "I just laid #count# eggs." />
</cffunction>

<cfset duck = new Duck() />
<cfset platypus = new Platypus() />

<cfset duck.layEggs = this.layEggs />
<cfset platypus.layEggs = this.layEggs />