<implementsEntity>

The <implementsEntity> subelement specifies that an entity implements the specified delegate. Guidewire calls an entity an implementor of a delegate if the entity specifies the delegate in an <implementsEntity> subelement.

If a delegate definition includes the optional requires attribute, then the implementor must provide an adapter attribute on its <implementsEntity> subelement. The adapter attribute specifies the name of a Java or Gosu type that implements the interface that the delegate definition specifies in its own requires attribute.

For example, the PolicyCenter base configuration defines a Cost delegate as follows:

<?xml version="1.0"?>
<delegate ... name="Cost" requires="gw.api.domain.financials.CostAdapter">
  ...
</delegate>

The base configuration defines a BACost entity that includes an <implementsEntity> subelement, which specifies delegate with name="Cost". Therefore, the BACost entity is an implementor of the Cost delegate.

<?xml version="1.0"?>
<entity ... entity="BACost" ... >
  ...
  <implementsEntity name="Cost" adapter="gw.lob.ba.financials.BACostAdapter" />
  ...
</entity>

The Cost delegate requires an implementation of the CostAdapter interface. So in its adapter attribute, the BACost entity specifies a BACostAdapter class, which implements the CostAdapter interface that the Cost adapter specifies in its requires attribute. The following diagram illustrates the relationship between the Cost delegate and the BACostAdapter adapter class:

Follow these rules for defining entities that implement delegates:

• If you specify a value for the requires attribute in a delegate, then implementers of the delegate must specify an adapter attribute in their definitions. The adapter attribute must specify the name of a Java or Gosu type that implements the interface specified by the requires attribute in delegate definition.
• If you do not specify a value for the requires attribute in a delegate, then implementers of the delegate must not specify an adapter attribute their definitions.

The Extractable Delegate

Entities that are part of the archive domain graph must implement the Extractable delegate. For example, if you create a custom subtype of Contact, then the custom subtype must implement the Extractable delegate.

If you add an edge foreign key to an entity that is part of the archive domain graph, set the extractable attribute on the edge foreign key to true. The value true causes PolicyCenter to add the Extractable delegate to the associative table generated for the edge foreign key.

Attributes of <implementsEntity>

The <implementsEntity> element contains the following attributes.

Subelements of <implementsEntity>

There are no subelements on the <implementsEntity> subelement.