Class Utils


  • class Utils
    extends java.lang.Object
    Common utilities
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.nio.charset.Charset UTF8  
    • Constructor Summary

      Constructors 
      Constructor Description
      Utils()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) static <T> java.util.Collection<T> emptyOrWrap​(java.util.Collection<T> list)  
      (package private) static <T> java.util.List<T> emptyOrWrap​(java.util.List<T> list)  
      (package private) static <K,​V>
      java.util.Map<K,​V>
      emptyOrWrap​(java.util.Map<K,​V> map)  
      (package private) static java.lang.String fromUTF8​(byte[] bytes)  
      (package private) static <T> java.util.List<T> listOfCapacity​(int capacity)  
      (package private) static byte[] toUTF8​(java.lang.String string)  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • UTF8

        private static java.nio.charset.Charset UTF8
    • Constructor Detail

      • Utils

        Utils()
    • Method Detail

      • toUTF8

        static byte[] toUTF8​(java.lang.String string)
      • fromUTF8

        static java.lang.String fromUTF8​(byte[] bytes)
      • emptyOrWrap

        static <T> java.util.List<T> emptyOrWrap​(java.util.List<T> list)
      • emptyOrWrap

        static <T> java.util.Collection<T> emptyOrWrap​(java.util.Collection<T> list)
      • emptyOrWrap

        static <K,​V> java.util.Map<K,​V> emptyOrWrap​(java.util.Map<K,​V> map)
      • listOfCapacity

        static <T> java.util.List<T> listOfCapacity​(int capacity)