Package org.apache.commons.collections.set

Class TransformedSortedSet

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Iterable, java.util.Collection, java.util.Set, java.util.SortedSet
    public class TransformedSortedSet
extends TransformedSet
implements java.util.SortedSet
    Decorates another SortedSet to transform objects that are added.

    The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.

    This class is Serializable from Commons Collections 3.1.

    Since:
    Commons Collections 3.0
    Version:
    $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
    See Also:
    Serialized Form

    • Field Detail

      • serialVersionUID

        private static final long serialVersionUID
        Serialization version
        See Also:
        Constant Field Values

    • Constructor Detail

      • TransformedSortedSet

        protected TransformedSortedSet​(java.util.SortedSet set,
                               Transformer transformer)
        Constructor that wraps (not copies).

        If there are any elements already in the set being decorated, they are NOT transformed.

        Parameters:
        set - the set to decorate, must not be null
        transformer - the transformer to use for conversion, must not be null
        Throws:
        java.lang.IllegalArgumentException - if set or transformer is null

    • Method Detail

      • decorate

        public static java.util.SortedSet decorate​(java.util.SortedSet set,
                                           Transformer transformer)
        Factory method to create a transforming sorted set.

        If there are any elements already in the set being decorated, they are NOT transformed.

        Parameters:
        set - the set to decorate, must not be null
        transformer - the transformer to use for conversion, must not be null
        Throws:
        java.lang.IllegalArgumentException - if set or transformer is null

      • getSortedSet

        protected java.util.SortedSet getSortedSet()
        Gets the decorated set.
        Returns:
        the decorated set

      • first

        public java.lang.Object first()
        Specified by:
        first in interface java.util.SortedSet

      • last

        public java.lang.Object last()
        Specified by:
        last in interface java.util.SortedSet

      • comparator

        public java.util.Comparator comparator()
        Specified by:
        comparator in interface java.util.SortedSet

      • subSet

        public java.util.SortedSet subSet​(java.lang.Object fromElement,
                                  java.lang.Object toElement)
        Specified by:
        subSet in interface java.util.SortedSet

      • headSet

        public java.util.SortedSet headSet​(java.lang.Object toElement)
        Specified by:
        headSet in interface java.util.SortedSet

      • tailSet

        public java.util.SortedSet tailSet​(java.lang.Object fromElement)
        Specified by:
        tailSet in interface java.util.SortedSet