Declare the Decorator

In order for a pool decorator to be actually used, you must declare it by adding a ui:decorator element to your publication's layout-group resource. For example:

<group name="xyz" root="true">
  ...
  <ui:decorator name="myDecorator"/>
  ...
</group>

The ui:decorator element must be added as the child of a top-level group element (that is, one that is a direct child of the resource file's root groups element).

Once you have done this, the decorator automatically takes effect for all pools within the top-level group and its children. You can add the decorator to as many top-level group elements as you want.

You can add more than one decorator to a group. For example:

<group name="xyz" root="true">
  ...
  <ui:decorator name="myDecorator/>
  <ui:decorator name="myRequestDecorator/>
  ...
</layout>

Note the following:

The decorator element belongs to the interface-hints namespace, which means that its name will usually be preceded by a prefix (ui in the examples above) declared at the start of the layout-group resource file. For full descriptions of the layout-group and decorator elements, see the CUE Content Store Resource Reference.
Multiple decorators are executed in the order they appear in the group definition. This may sometimes be significant. Request decorators, however, are always executed last.