ZoneRulesVersion

All Known Implementing Classes:

ResourceZoneRulesDataProvider.ResourceZoneRulesVersion
```
public interface ZoneRulesVersion
```
A version of time-zone rules from a single group.
Zone rule data is provided by organizations or groups. Each group provides multiple versions of their data over time. This interface models one version of data.
ZoneRulesVersion is a service provider interface that can be called by multiple threads. Implementations must be immutable and thread-safe.
Implementations are responsible for caching.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Set<java.lang.String>`	`getRegionIDs()`	Gets the complete set of provided region IDs, such as 'Europe/Paris'.
`java.lang.String`	`getVersionID()`	Gets the time-zone version ID of the data available via this provider, such as '2010e'.
`ZoneRules`	`getZoneRules(java.lang.String regionID)`	Gets the zone rules for the specified region ID.
`boolean`	`isRegionID(java.lang.String regionID)`	Checks if the region ID is valid.

- Method Detail
  - getVersionID
```
java.lang.String getVersionID()
```
    Gets the time-zone version ID of the data available via this provider, such as '2010e'.
    Version IDs must match regex [A-Za-z0-9._-]+.
    
    Returns:
    
    the ID of the group, never null
  - isRegionID
```
boolean isRegionID(java.lang.String regionID)
```
    Checks if the region ID is valid.
    
    Parameters:
    
    regionID - the region ID, null returns false
    
    Returns:
    
    true if the specified region ID is valid for this group and version
  - getRegionIDs
```
java.util.Set<java.lang.String> getRegionIDs()
```
    Gets the complete set of provided region IDs, such as 'Europe/Paris'.
    Region IDs must match regex [A-Za-z0-9%@~/+._-]+.
    
    Returns:
    
    the provided region IDs, unmodifiable, never null
  - getZoneRules
```
ZoneRules getZoneRules(java.lang.String regionID)
```
    Gets the zone rules for the specified region ID.
    The region ID should be one of those returned by #getRegionIDs().
    
    Parameters:
    
    regionID - the region ID, not null
    
    Returns:
    
    the matched zone rules, null if not found