Class GroupedMap<GroupedKeyType,​ValueType>

  • All Implemented Interfaces:
    java.util.Map<Tuple,​ValueType>

    public class GroupedMap<GroupedKeyType,​ValueType>
    extends java.lang.Object
    implements java.util.Map<Tuple,​ValueType>
    An optimized Map implementation where each key is produced by joining together a group tuple and some other object (via left inheritance). Only a select few Map operations are supported. This collection is unmodifiable. Operations on this map assume that client queries also obey the contract that keys are constructed from a group tuple and an additional object.
    Since:
    2.4