Refreshes the rules from the underlying data provider.
!(p)
This method allows an application to request that the providers check
for any updates to the provided rules.
After calling this method, the offset stored _in any {@link ZonedDateTime}
may be invalid for the zone ID.
!(p)
Dynamic update of rules is a complex problem and most applications
should not use this method or dynamic rules.
To achieve dynamic rules, a provider implementation will have to be written
as per the specification of this class.
In addition, instances of {@code ZoneRules} must not be cached _in the
application as they will become stale. However, the bool flag on
{@link #provideRules(string, bool)} allows provider implementations
to control the caching of {@code ZoneId}, potentially ensuring that
all objects _in the system see the new rules.
Note that there is likely to be a cost _in performance of a dynamic rules
provider. Note also that no dynamic rules provider is _in this specification.
@return true if the rules were updated
@throws ZoneRulesException if an error occurs during the refresh
Refreshes the rules from the underlying data provider. !(p) This method allows an application to request that the providers check for any updates to the provided rules. After calling this method, the offset stored _in any {@link ZonedDateTime} may be invalid for the zone ID. !(p) Dynamic update of rules is a complex problem and most applications should not use this method or dynamic rules. To achieve dynamic rules, a provider implementation will have to be written as per the specification of this class. In addition, instances of {@code ZoneRules} must not be cached _in the application as they will become stale. However, the bool flag on {@link #provideRules(string, bool)} allows provider implementations to control the caching of {@code ZoneId}, potentially ensuring that all objects _in the system see the new rules. Note that there is likely to be a cost _in performance of a dynamic rules provider. Note also that no dynamic rules provider is _in this specification.
@return true if the rules were updated @throws ZoneRulesException if an error occurs during the refresh