Package com.mapr.baseutils.utils

Class GenericSorter<T>

  • public abstract class GenericSorter<T>
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Constructor Description
      GenericSorter()  

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      int compareBoolean​(java.lang.Boolean b1, java.lang.Boolean b2)  
      int compareLong​(java.lang.Long l1, java.lang.Long l2)  
      int compareString​(java.lang.String s1, java.lang.String s2)  
      int compareStringIgnoreCase​(java.lang.String s1, java.lang.String s2)  
      protected abstract java.util.List<T> getFreshList​(com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
      Child class shall implement logic of creating list.
      java.util.List<T> getSortedList​(com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
      Returns list sorted by requested key.
      protected abstract int getSortedListRefreshSeconds()  
      protected void logMessage​(java.lang.String str)  
      boolean purgeExpiredList()
      Method to be called by PurgeExecutor for purging old entries.
      abstract void sortList​(java.util.List<T> list, com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
      Child class shall implement logic of sorting given list by specified order.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • GenericSorter

        public GenericSorter()

    • Method Detail

      • sortList

        public abstract void sortList​(java.util.List<T> list,
                              com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
        Child class shall implement logic of sorting given list by specified order.

      • getFreshList

        protected abstract java.util.List<T> getFreshList​(com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
        Child class shall implement logic of creating list.

      • getSortedListRefreshSeconds

        protected abstract int getSortedListRefreshSeconds()

      • getSortedList

        public java.util.List<T> getSortedList​(com.mapr.fs.cldb.proto.CLDBProto.ListSortKey sortingKey)
        Returns list sorted by requested key. Maintains SortedListMap by storing list against create time. Returns list from SortedListMap if the list was recently sorted, else returns a freshly sorted list, after storing it in SortedListMap.

      • logMessage

        protected void logMessage​(java.lang.String str)

      • compareLong

        public int compareLong​(java.lang.Long l1,
                       java.lang.Long l2)

      • compareString

        public int compareString​(java.lang.String s1,
                         java.lang.String s2)

      • compareBoolean

        public int compareBoolean​(java.lang.Boolean b1,
                          java.lang.Boolean b2)

      • compareStringIgnoreCase

        public int compareStringIgnoreCase​(java.lang.String s1,
                                   java.lang.String s2)

      • purgeExpiredList

        public boolean purgeExpiredList()
        Method to be called by PurgeExecutor for purging old entries. If the list has out lived its validity threshold, it is purged not otherwise.