Interface GroupManager
-
- All Known Implementing Classes:
GroupManagerImpl
public interface GroupManager
Control's key grouping.- Author:
- Pete Muir
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description <K,V>
Map<K,V>collect(CacheStream<? extends CacheEntry<K,V>> stream, InvocationContext ctx, String groupName)
Collects all entries belonging to a single group.Object
getGroup(Object key)
Get the group for a given key
-
-
-
Method Detail
-
getGroup
Object getGroup(Object key)
Get the group for a given key- Parameters:
key
- the key for which to get the group- Returns:
- the group, or null if no group is defined for the key
-
collect
<K,V> Map<K,V> collect(CacheStream<? extends CacheEntry<K,V>> stream, InvocationContext ctx, String groupName)
Collects all entries belonging to a single group.This method receives a
CacheStream
and it must filter theCacheEntry
that belongs to the group.If the cache is transactional, the entries must be stored in the
InvocationContext
(with proper read version if applicable).- Type Parameters:
K
- The key type.V
- The value type.- Parameters:
stream
- TheCacheStream
ofCacheEntry
to filter.ctx
- TheInvocationContext
to use during its invocation.groupName
- The group name to collect.- Returns:
- A
Map
with keys and value.
-
-