Package com.jalios.util

Class ObjectLongTreeMap

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map, java.util.NavigableMap, java.util.SortedMap
    public class ObjectLongTreeMap
extends java.util.TreeMap
    This class is a map which binds key Object to long value.

    This class is NOT thread safe, synchronize read and write operation when used in multi-threaded context if you really need features provided by this collection.
    In multithreaded context, it may be wiser to use alternative thread safe and type safe collection such as ConcurrentHashMap<YourType, Long>.

    Version:
    $Revision: 107378 $
    Author:
    Olivier Dedieu
    See Also:
    Serialized Form

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  ObjectLongTreeMap.GreaterComparator
      A Comparator that sort TreeMap of ObjectLongTreeMap by Max Value
      protected static class  ObjectLongTreeMap.KeyComparator
      A Comparator that sort TreeMap of ObjectLongTreeMap by Key Value
      static class  ObjectLongTreeMap.LowerComparator
      A Comparator that sort TreeMap of ObjectLongTreeMap by Min Value
      static class  ObjectLongTreeMap.ObjectComparator
      A Comparator that allow ObjectyLongTreeMap to sort multiple kind of Object
      static class  ObjectLongTreeMap.SortedKeyComparator
      A Comparator that sort TreeMap of ObjectLongTreeMap by Key Value sorted using a sorted List

      • Nested classes/interfaces inherited from class java.util.AbstractMap

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String REVISION  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static java.util.Comparator getGreaterComparator()
      Sort ObjectLongTreeMap from larger to smaller
      long getLong​(java.lang.Object key, long defaultValue)
      Returns the value to which this map maps the specified key.
      static java.util.Comparator getLowerComparator()
      Sort ObjectLongTreeMap from smaller to larger
      static java.util.Comparator getSortedKeyComparator​(java.lang.String[] sort)
      Sort ObjectLongTreeMap ordered by a predifined List
      static java.util.Comparator getSortedKeyComparator​(java.util.List sort)
      Sort ObjectLongTreeMap ordered by a predifined List
      static java.util.SortedSet getSortedMapEntrySet​(java.util.Map map, java.util.Comparator comparator)
      This method return a Sorted Set of Map.Entry
      long getSum()
      Returns the sum of the values of the map
      void inc​(java.lang.Object key)
      Incremente the value associated with the specified key.
      void inc​(java.lang.Object key, long quantity)
      Incremente the value associated with the specified key.
      void put​(java.lang.Object key, long value)
      Associates the specified value with the specified key in this map.

      • Methods inherited from class java.util.TreeMap

        ceilingEntry, ceilingKey, clear, clone, comparator, containsKey, containsValue, descendingKeySet, descendingMap, entrySet, firstEntry, firstKey, floorEntry, floorKey, forEach, get, headMap, headMap, higherEntry, higherKey, keySet, lastEntry, lastKey, lowerEntry, lowerKey, navigableKeySet, pollFirstEntry, pollLastEntry, put, putAll, remove, replace, replace, replaceAll, size, subMap, subMap, tailMap, tailMap, values

      • Methods inherited from class java.util.AbstractMap

        equals, hashCode, isEmpty, toString

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map

        compute, computeIfAbsent, computeIfPresent, equals, getOrDefault, hashCode, isEmpty, merge, putIfAbsent, remove

    • Constructor Detail

      • ObjectLongTreeMap

        public ObjectLongTreeMap()

    • Method Detail

      • put

        public void put​(java.lang.Object key,
                long value)
        Associates the specified value with the specified key in this map. If the map previously contained a mapping for this key, the old value is replaced.
        Parameters:
        key - key with which the specified value is to be associated.
        value - value to be associated with the specified key.

      • inc

        public void inc​(java.lang.Object key,
                long quantity)
        Incremente the value associated with the specified key. If this key did not exist, it is created and the value is set to '1'.
        Parameters:
        key - key for which the specified value must be incremented.
        quantity - the quantity to increment

      • inc

        public void inc​(java.lang.Object key)
        Incremente the value associated with the specified key. If this key did not exist, it is created and the value is set to '1'.
        Parameters:
        key - key for which the specified value must be incremented.

      • getLong

        public long getLong​(java.lang.Object key,
                    long defaultValue)
        Returns the value to which this map maps the specified key. Returns defaultValue if the map contains no mapping for this key.
        Parameters:
        key - key whose associated value is to be returned.
        defaultValue - value to return if the map contains no mapping for this key.
        Returns:
        the value to which this map maps the specified key, or defaultValue if the map contains no mapping for this key.

      • getSum

        public long getSum()
        Returns the sum of the values of the map
        Returns:
        the sum of the values of the map
        Since:
        jcms-7.0.0

      • getSortedMapEntrySet

        public static java.util.SortedSet getSortedMapEntrySet​(java.util.Map map,
                                                       java.util.Comparator comparator)
        This method return a Sorted Set of Map.Entry
        Parameters:
        map - a TreeMap that is an ObjectLongTreeMap or composed by ObjectLongTreeMap.
        comparator - the comparator to sort objects.
        Returns:
        SortedSet of Map.Entry
        Since:
        jcms-7.0.0

      • getGreaterComparator

        public static java.util.Comparator getGreaterComparator()
        Sort ObjectLongTreeMap from larger to smaller

      • getLowerComparator

        public static java.util.Comparator getLowerComparator()
        Sort ObjectLongTreeMap from smaller to larger

      • getSortedKeyComparator

        public static java.util.Comparator getSortedKeyComparator​(java.util.List sort)
        Sort ObjectLongTreeMap ordered by a predifined List

      • getSortedKeyComparator

        public static java.util.Comparator getSortedKeyComparator​(java.lang.String[] sort)
        Sort ObjectLongTreeMap ordered by a predifined List