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  1. Commons Collections
  2. COLLECTIONS-165

Filtered Maps, Lists, and Sets

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Implemented
    • Affects Version/s: 3.1
    • Fix Version/s: None
    • Component/s: List, Map, Set
    • Labels:
      None
    • Environment:

      Operating System: other
      Platform: Other

    • Bugzilla Id:
      29829

      Description

      In the project I work I have found that it would be efficient (at a small cost
      of memory) to use filtered maps, lists, and sets instead of creating a new copy
      of the decorated entities that contains only the filtered elements.

      To begin with I have implemented a FilteredMap and plan to implement
      FilteredList and FilteredSet. I will post the code for these in a couple of
      days and it would be great if Collections library could accept these contributions.

        Attachments

        1. ASF.LICENSE.NOT.GRANTED--FilteredCollection.java
          6 kB
          Venkatesh Prasad Ranganath
        2. ASF.LICENSE.NOT.GRANTED--FilteredSet.java
          3 kB
          Venkatesh Prasad Ranganath
        3. ASF.LICENSE.NOT.GRANTED--FilteredList.java
          5 kB
          Venkatesh Prasad Ranganath
        4. ASF.LICENSE.NOT.GRANTED--FilteredListIterator.java
          3 kB
          Venkatesh Prasad Ranganath
        5. ASF.LICENSE.NOT.GRANTED--FilteredMap.java
          9 kB
          Venkatesh Prasad Ranganath

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              comfortably007numb-python@yahoo.com Venkatesh Prasad Ranganath
            • Votes:
              1 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: