Enum PrimitiveType

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<PrimitiveType>

    enum PrimitiveType
    extends java.lang.Enum<PrimitiveType>
    Primitive types in the VM type system and their sizes
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      BOOLEAN
      boolean.class
      BYTE
      byte.class
      CHAR
      char.class
      DOUBLE
      double.class
      FLOAT
      float.class
      INT
      int.class
      LONG
      long.class
      SHORT
      short.class
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int size  
      private java.lang.Class<?> type  
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private PrimitiveType​(java.lang.Class<?> type, int size)  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static PrimitiveType forType​(java.lang.Class<?> type)
      Finds the matching PrimitiveType for a type
      static long getArraySize()
      The size on an array
      static int getReferenceSize()
      The size of a pointer
      int getSize()
      Returns the size in memory this type occupies
      java.lang.Class<?> getType()
      The representing type
      static PrimitiveType valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static PrimitiveType[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Field Detail

      • type

        private final java.lang.Class<?> type
      • size

        private final int size
    • Constructor Detail

      • PrimitiveType

        private PrimitiveType​(java.lang.Class<?> type,
                              int size)
    • Method Detail

      • values

        public static PrimitiveType[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (PrimitiveType c : PrimitiveType.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static PrimitiveType valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null
      • getSize

        public int getSize()
        Returns the size in memory this type occupies
        Returns:
        size in bytes
      • getType

        public java.lang.Class<?> getType()
        The representing type
        Returns:
        the type
      • getReferenceSize

        public static int getReferenceSize()
        The size of a pointer
        Returns:
        size in bytes
      • getArraySize

        public static long getArraySize()
        The size on an array
        Returns:
        size in bytes
      • forType

        public static PrimitiveType forType​(java.lang.Class<?> type)
        Finds the matching PrimitiveType for a type
        Parameters:
        type - the type to find the PrimitiveType for
        Returns:
        the PrimitiveType instance or null if none found