Defines properties of a ColdFusion component (CFC). Used to create complex data types for web services. The attributes of this tag are exposed as component metadata and are subject to inheritance rules.
<cfproperty
name="name"
type="type" required="boolean" default="default value" displayname="descriptive name"
hint="extended description"
>
cfargument, cfcomponent, cffunction, cfinvoke, cfinvokeargument, cfobject, cfreturn
ColdFusion MX: Added this tag.
| Attribute | Req/Opt |
Default | Description |
|---|---|---|---|
name |
Required |
|
A string; a property name. Must be a static value. |
type |
Optional |
any |
A string; identifies the property data type: any array binary boolean date guid: The argument must be a UUID or GUID of the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx where each x is a character representing a hexadecimal number (0-9A-F). numeric query string struct uuid: The argument must be a ColdFusion UUID of the form xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxxxxxx where each x is a character representing a hexadecimal number (0-9A-F). variableName: a string formatted according to ColdFusion variable naming conventions.. a component name: If the type attribute value is not one of the preceding items, ColdFusion treats it as the name of a ColdFusion component. When The function executes, it generates an error if the argument that is passed in is not a CFC with the specified name. |
required |
Optional |
no |
Whether the parameter is required yes no |
default |
Optional |
|
If no property value is set when the component is used for a web service, specifies a default value. If this attribute is present, the |
displayname |
Optional |
|
A value to be displayed when using introspection to show information about the CFC. The value appears in parentheses following the property name. |
hint |
Optional |
|
Text to be displayed when using introspection to show information about the CFC. This attribute can be useful for describing the purpose of the parameter. |
You must position cfproperty tags at the beginning of a component, above executable code and function definitions.
If a component is not used as a web service, The cfproperty only provides metadata information when the component is viewed using introspection, for example, by opening the .cfc file directly in the browser. It does not define variables or set values that you can then use in your compoenent.
For web services that you create in ColdFusion, the cfproperty tag defines complex variables used by the web service.
The following code defines a component in the file address.cfc that contains properties that represent a street address:
<cfcomponent> <cfproperty name="Number" type="numeric"> <cfproperty name="Street" type="string"> <cfproperty name="City" type="string"> <cfproperty name="State" type="string"> <cfproperty name="Country" type="string"> </cfcomponent>
This component represnts a complex data type that can be used in a component that is exported as a web service, such as the following:
<cfcomponent>
<cffunction name="echoAddress" returnType="address" access="remote">
<cfargument name="input" type="address">
<cfreturn #arguments.input#>
</cffunction>
</cfcomponent>