package com.github.davidmoten.rx2;
   
   import io.reactivex.functions.Predicate;
   
   public final class Predicates {
   
       private Predicates() {
           // prevent instantiation
       }
  
      @SuppressWarnings("unchecked")
      public static <T> Predicate<T> alwaysFalse() {
          return (Predicate<T>) FalseHolder.INSTANCE;
      }
  
      private static final class FalseHolder {
          static final Predicate<Object> INSTANCE = new Predicate<Object>() {
              @Override
              public boolean test(Object t) throws Exception {
                  return false;
              }
          };
      }
  
      @SuppressWarnings("unchecked")
      public static <T> Predicate<T> alwaysTrue() {
          return (Predicate<T>) TrueHolder.INSTANCE;
      }
  
      private static final class TrueHolder {
          static final Predicate<Object> INSTANCE = new Predicate<Object>() {
              @Override
              public boolean test(Object t) throws Exception {
                  return true;
              }
          };
      }
  
  }