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We earlier met maintainables in the section on business rules for maintenance documents. We saw that maintenance documents hand the rules a document of class org.kuali.rice.kns.document.MaintenanceDocument. This document held the new business object and perhaps the pre-edit or pre-copy version of the business object...but that those business objects were wrapped in other objects that implemented the org.kuali.rice.kns.maintenance.Maintainable interface.
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