Efficient cache of read-only bdlt::Calendar objects.
Declared in <bdlt_calendarcache.h>
class CalendarCache;This class implements an efficient cache of read-only bdlt::Calendar objects that are loaded into the cache, using a calendar loader supplied at construction, as a side-effect of the getCalendar manipulator. Calendars in the cache can be invalidated, and removed from the cache via the invalidate and invalidateAll methods. In addition, calendars in the cache can be made to expire based on a timeout that may be optionally supplied at construction. The bsl::shared_ptr<const bdlt::Calendar> objects returned from the getCalendar and lookupCalendar methods allow for the safe removal of calendars from the cache that may still have outstanding references to them.
This container is exception neutral with no guarantee of rollback: if an exception is thrown during the invocation of a method on a pre-existing instance, the container is left in a valid state, but its value is undefined. In no event is memory leaked.
This class is fully thread-safe (see bsldoc_glossary).
| Name | Description |
|---|---|
CalendarCache [constructor] | Constructors |
~CalendarCache [destructor] | Destroy this object. |
getCalendar | Return a shared pointer to the named calendar, loading it if needed. |
invalidate | Invalidate and remove the named calendar from this cache. |
invalidateAll | Invalidate and remove all calendars from this cache. |
lookupCalendar | Return a shared pointer to the calendar named calendarName. |
lookupLoadTime | Return the UTC datetime when the named calendar was loaded. |