net.sf.javagimmicks.collections8.transformer.BidiTransformingNavigableSet Maven / Gradle / Ivy

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Utility classes, APIs and tools for Java

There is a newer version: 0.99-alpha1

package net.sf.javagimmicks.collections8.transformer;

import java.util.Iterator;
import java.util.NavigableSet;

import net.sf.javagimmicks.transform8.BidiFunction;

class BidiTransformingNavigableSet
      extends BidiTransformingSortedSet
      implements NavigableSet
{
   BidiTransformingNavigableSet(NavigableSet set, BidiFunction transformer)
   {
      super(set, transformer);
   }

   public T ceiling(T e)
   {
      F ceiling = getNavigableSet().ceiling(transformBack(e));
      return ceiling != null ? transform(ceiling) : null;
   }

   public Iterator descendingIterator()
   {
      return TransformerUtils.decorate(
            getNavigableSet().descendingIterator(),
            getTransformerFunction());
   }

   public NavigableSet descendingSet()
   {
      return TransformerUtils.decorate(
            getNavigableSet().descendingSet(),
            getTransformerBidiFunction());
   }

   public T floor(T e)
   {
      F floor = getNavigableSet().floor(transformBack(e));
      return floor != null ? transform(floor) : null;
   }

   public NavigableSet headSet(T toElement, boolean inclusive)
   {
      return TransformerUtils.decorate(
            getNavigableSet().headSet(transformBack(toElement), inclusive),
            getTransformerBidiFunction());
   }

   public T higher(T e)
   {
      F higher = getNavigableSet().higher(transformBack(e));
      return higher != null ? transform(higher) : null;
   }

   public T lower(T e)
   {
      F lower = getNavigableSet().lower(transformBack(e));
      return lower != null ? transform(lower) : null;
   }

   public T pollFirst()
   {
      F first = getNavigableSet().pollFirst();
      return first != null ? transform(first) : null;
   }

   public T pollLast()
   {
      F last = getNavigableSet().pollLast();
      return last != null ? transform(last) : null;
   }

   public NavigableSet subSet(T fromElement, boolean fromInclusive,
         T toElement, boolean toInclusive)
   {
      return TransformerUtils.decorate(
            getNavigableSet().subSet(
                  transformBack(fromElement), fromInclusive,
                  transformBack(toElement), toInclusive),
            getTransformerBidiFunction());
   }

   public NavigableSet tailSet(T fromElement, boolean inclusive)
   {
      return TransformerUtils.decorate(
            getNavigableSet().tailSet(transformBack(fromElement), inclusive),
            getTransformerBidiFunction());
   }

   protected NavigableSet getNavigableSet()
   {
      return (NavigableSet) _internalSet;
   }
}