`<implementsInterface>`

The <implementsInterface> subelement specifies that an entity implements the specified interface. This element defines two attributes: an interface (iface) attribute and an implementation (impl) attribute.

For example, the PolicyCenter base configuration defines the BACost entity with the following <implementsInterface> subelement:

<entity ... entity="BACost" ...>
  ...
  <implementsInterface 
          iface="gw.lob.ba.financials.BACostMethods"
          impl="gw.lob.ba.financials.BACostMethodsImpl"/>
</entity>

The BACostMethods interface has getter methods that any class that implements this interface must provide. The getter methods are coverage, state, and vehicle. By including the <implementsInterface> subelement, the BACost entity lets you use getter methods on instances of the BACost entity in Gosu code.

var cost : BACost
var cov     = cost.Coverage
var state   = cost.State
var vehicle = cost.Vehicle

Attributes of `<implementsInterface>`

The <implementsInterface> element contains the following attributes.

`<implementsInterface>` attribute	Description
`iface`	Required. The name of the interface that this data object must implement.
`impl`	The name of the class or subclass that implements the specified interface, if any. Valid only when declared on abstract entities or delegates.

Subelements on `<implementsInterface>`

There are no subelements on the <implementsInterface> subelement.