Package org.jboss.util.collection

Class SoftSet

  • All Implemented Interfaces:
    java.lang.Iterable, java.util.Collection, java.util.Set
    public class SoftSet
extends java.lang.Object
implements java.util.Set
    An implementation of Set that manages a map of soft references to the set values. The map is keyed by the value hashCode and so this is only useful for value whose hashCode is a valid identity representation (String, primative wrappers, etc).
    Version:
    $Revision$

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.lang.ref.ReferenceQueue gcqueue
      The queue of garbage collected soft references
      private java.util.HashMap map  

    • Constructor Summary

      Constructors 
      Constructor Description
      SoftSet()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(java.lang.Object o)  
      boolean addAll​(java.util.Collection c)  
      void clear()  
      boolean contains​(java.lang.Object o)  
      boolean containsAll​(java.util.Collection c)  
      boolean equals​(java.lang.Object o)  
      int hashCode()  
      boolean isEmpty()  
      java.util.Iterator iterator()  
      private void processQueue()
      Iterate through the gcqueue for for any cleared reference, remove the associated value from the underlying set.
      boolean remove​(java.lang.Object o)  
      boolean removeAll​(java.util.Collection c)  
      boolean retainAll​(java.util.Collection c)  
      int size()  
      java.lang.Object[] toArray()  
      java.lang.Object[] toArray​(java.lang.Object[] a)  

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface java.util.Collection

        parallelStream, removeIf, stream, toArray

      • Methods inherited from interface java.lang.Iterable

        forEach

      • Methods inherited from interface java.util.Set

        spliterator

    • Field Detail

      • map

        private java.util.HashMap map

      • gcqueue

        private java.lang.ref.ReferenceQueue gcqueue
        The queue of garbage collected soft references

    • Constructor Detail

      • SoftSet

        public SoftSet()

    • Method Detail

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection
        Specified by:
        size in interface java.util.Set

      • isEmpty

        public boolean isEmpty()
        Specified by:
        isEmpty in interface java.util.Collection
        Specified by:
        isEmpty in interface java.util.Set

      • contains

        public boolean contains​(java.lang.Object o)
        Specified by:
        contains in interface java.util.Collection
        Specified by:
        contains in interface java.util.Set

      • iterator

        public java.util.Iterator iterator()
        Specified by:
        iterator in interface java.util.Collection
        Specified by:
        iterator in interface java.lang.Iterable
        Specified by:
        iterator in interface java.util.Set

      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection
        Specified by:
        toArray in interface java.util.Set

      • toArray

        public java.lang.Object[] toArray​(java.lang.Object[] a)
        Specified by:
        toArray in interface java.util.Collection
        Specified by:
        toArray in interface java.util.Set

      • add

        public boolean add​(java.lang.Object o)
        Specified by:
        add in interface java.util.Collection
        Specified by:
        add in interface java.util.Set

      • remove

        public boolean remove​(java.lang.Object o)
        Specified by:
        remove in interface java.util.Collection
        Specified by:
        remove in interface java.util.Set

      • containsAll

        public boolean containsAll​(java.util.Collection c)
        Specified by:
        containsAll in interface java.util.Collection
        Specified by:
        containsAll in interface java.util.Set

      • addAll

        public boolean addAll​(java.util.Collection c)
        Specified by:
        addAll in interface java.util.Collection
        Specified by:
        addAll in interface java.util.Set

      • retainAll

        public boolean retainAll​(java.util.Collection c)
        Specified by:
        retainAll in interface java.util.Collection
        Specified by:
        retainAll in interface java.util.Set

      • removeAll

        public boolean removeAll​(java.util.Collection c)
        Specified by:
        removeAll in interface java.util.Collection
        Specified by:
        removeAll in interface java.util.Set

      • clear

        public void clear()
        Specified by:
        clear in interface java.util.Collection
        Specified by:
        clear in interface java.util.Set

      • equals

        public boolean equals​(java.lang.Object o)
        Specified by:
        equals in interface java.util.Collection
        Specified by:
        equals in interface java.util.Set
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface java.util.Collection
        Specified by:
        hashCode in interface java.util.Set
        Overrides:
        hashCode in class java.lang.Object

      • processQueue

        private void processQueue()
        Iterate through the gcqueue for for any cleared reference, remove the associated value from the underlying set.