...
| Method | Return Syntax | Return Value or Error | Comments |
|---|---|---|---|
| getId() | osid.id.Id | UnknownId | This is an implementation of osid.id.Id that identifies "I don't know." However, since every OsidObject is uniquely identified by its Id, there can only be one of these. One should be able to: ResourceRelationshipLookupSession.getResourceRelationship(brokenResourceRelationship.getId()) If that works, then all is well as far as the OSIDs are concerned. But you have serious design issues if you can't figure out the identifier from your data store. |
| isCurrent() | boolean | false | this This is connected to the nature of the implementation. Unless it is a real-time implementation where the information is current, the answer is always false. |
| getRecordTypes() | osid.type.TypeList | EmptyTypeList | an An osid.type.TypeList with no Types. |
| hasRecordType(osid.type.Type) | boolean | false | always Always false if getRecordTypes() is empty. |
| getProperties() | osid.PropertyList | empty list | an An osid.PropertyList with no properties. |
| getPropertiesByRecordType(osid.type.Type) | osid.PropertyList | UNSUPPORTED | getRecordTypes() is empty. |
| getDisplayName | osid.locale.DisplayText | EmptyDisplayText | An osid.locale.DisplayText with an empty string. |
| getDescription | osid.locale.DisplayText | EmptyDisplayText | An osid.locale.DisplayText with an empty string. |
| getGenusType | osid.type.Type | UnknownType | An osid.type.Type that identifies nothing. |
| isOfGenusType | boolean | true if the given Type matches getGenusType() | |
| isEffective() | boolean | false | |
| getStartDate() | osid.calendaring.DateTime | UnknownDateTime | An implementation of osid.calendaring.DateTime that has an infinite uncertainty. We could have gone another way and implemented the concept of "always" by using an infinite granularity. In this case, isEffective() would always be true. This is an example where the lack of a value may mean two different things – "I don't know" or "forever." |
| getEndDate() | osid.calendaring.DateTime | UnknownDateTime | |
| hasEndReason() | boolean | false | |
| getEndReasonId() | osid.id.Id | ILLEGAL_STATE | the end reason state is only available if hasEndReason is true |
| getEndReason() | osid.process.State | ILLEGAL_STATE | the end reason state is only available if hasEndReason is true |
| getSourceResourceId() | osid.id.Id | UnknownResource.getId() | we don't know what this is, so let's make up a Resource and return that |
| getSourceResource() | osid.resource.Resource | UnknownResource | |
| getDestinationResourceId() | osid.id.Id | UnknownResource.getId() | |
| getDestinationResource() | osid.resource.Resource | UnknownResource() | |
| getResourceRelationshipRecord(osid.type.Type) | osid.resource.records.ResourceRelationshipRecord | UNSUPPORTED | getRecordTypes() is empty, so we don't support any |
This may seem silly, but you will find many of these Unknown and Empty implementations in the Okapia jamocha package. They are handy for stubbing things in during development.