sdk/sources/android-25/jsr166/CollectionImplementation.java

   1 /*
   2  * Written by Doug Lea and Martin Buchholz with assistance from
   3  * members of JCP JSR-166 Expert Group and released to the public
   4  * domain, as explained at
   5  * http://creativecommons.org/publicdomain/zero/1.0/
   6  */
   7
   8 package jsr166;
   9
  10 import java.util.Collection;
  11
  12 /** Allows tests to work with different Collection implementations. */
  13 public interface CollectionImplementation {
  14     /** Returns the Collection class. */
  15     public Class<?> klazz();
  16     /** Returns an empty collection. */
  17     public Collection emptyCollection();
  18     public Object makeElement(int i);
  19     public boolean isConcurrent();
  20     public boolean permitsNulls();
  21 }