Class ClassKey

  • All Implemented Interfaces:, java.lang.Comparable<ClassKey>

    public final class ClassKey
    extends java.lang.Object
    implements java.lang.Comparable<ClassKey>,
    Key class, used as an efficient and accurate key for locating per-class values, such as JsonSerializers.

    The reason for having a separate key class instead of directly using Class as key is mostly to allow for redefining hashCode method -- for some strange reason, Class does not redefine Object.hashCode() and thus uses identity hash, which is pretty slow. This makes key access using Class unnecessarily slow.

    Note: since class is not strictly immutable, caller must know what it is doing, if changing field values.

    See Also:
    Serialized Form
    • Constructor Summary

      Constructor Description
      ClassKey​(java.lang.Class<?> clz)  
    • Constructor Detail

      • ClassKey

        public ClassKey()
      • ClassKey

        public ClassKey​(java.lang.Class<?> clz)
    • Method Detail

      • reset

        public void reset​(java.lang.Class<?> clz)
      • compareTo

        public int compareTo​(ClassKey other)
        Specified by:
        compareTo in interface java.lang.Comparable<ClassKey>
      • equals

        public boolean equals​(java.lang.Object o)
        equals in class java.lang.Object
      • hashCode

        public int hashCode()
        hashCode in class java.lang.Object
      • toString

        public java.lang.String toString()
        toString in class java.lang.Object