org.openmrs.api
Interfaces 
ActiveListService
AdministrationService
CohortService
ConceptService
DataSetService
EncounterService
FormService
GlobalPropertyListener
LocationService
ObsService
OpenmrsService
OrderService
PatientService
PatientSetService
PersonService
ProgramWorkflowService
ReportService
SerializationService
UserService
Classes 
EventListeners
Enums 
ConceptNameType
OrderService.ORDER_STATUS
PatientSetService.BooleanOperator
PatientSetService.GroupMethod
PatientSetService.Modifier
PatientSetService.PatientLocationMethod
PatientSetService.TimeModifier
PersonService.ATTR_VIEW_TYPE
Exceptions 
APIAuthenticationException
APIException
BlankIdentifierException
ConceptInUseException
ConceptNameInUseException
ConceptsLockedException
DuplicateConceptNameException
DuplicateIdentifierException
IdentifierNotUniqueException
InsufficientIdentifiersException
InvalidCharactersPasswordException
InvalidCheckDigitException
InvalidIdentifierFormatException
MissingRequiredIdentifierException
PasswordException
PatientIdentifierException
ShortPasswordException
WeakPasswordException