* Adds descriptor fields from the <code>ManagedAttribute</code> attribute
* to the attribute descriptor. Specifically, adds the <code>currencyTimeLimit</code>
* descriptor field if it is present in the metadata.
*/
protected void populateOperationDescriptor(Descriptor desc, Method method, String beanKey) {
ManagedOperation mo = this.attributeSource.getManagedOperation(method);
if (mo != null) {
applyCurrencyTimeLimit(desc, mo.getCurrencyTimeLimit());
}
}