程序包 org.meteoinfo.ndarray

枚举 DataType

  • 所有已实现的接口:
    java.io.Serializable, java.lang.Comparable<DataType>
    public enum DataType
extends java.lang.Enum<DataType>
    Type-safe enumeration of data types.
    作者:
    john caron

    • 嵌套类概要

      嵌套类 
      修饰符和类型 类 说明
      static class  DataType.Signedness
      A property of integral data types that determines whether they can represent both positive and negative numbers (signed), or only non-negative numbers (unsigned).

    • 方法概要

      所有方法 静态方法 实例方法 具体方法 
      修饰符和类型 方法 说明
      java.lang.Class getClassType()  
      int getNumber()
      Returns A unique number for each of the different built-in types.
      java.lang.Class getPrimitiveClassType()
      The primitive class type: char, byte, float, double, short, int, long, boolean, String, StructureData, StructureDataIterator, ByteBuffer.
      DataType.Signedness getSignedness()
      Returns the signedness of this data type.
      int getSize()
      Size in bytes of one element of this data type.
      static DataType getType​(java.lang.Class c)
      Find the DataType that matches this class.
      static DataType getType​(java.lang.Class c, boolean isUnsigned)
      Find the DataType that matches this class.
      static DataType getType​(java.lang.String name)
      Find the DataType that matches this name.
      boolean isBoolean()
      Is Boolean
      boolean isEnum()
      Is this an enumeration types?
      boolean isFloatingPoint()
      Is Float or Double
      boolean isIntegral()
      Is Byte, Int, Short, or Long
      boolean isNumeric()
      Is Byte, Float, Double, Int, Short, or Long
      boolean isString()
      Is String or Char
      boolean isUnsigned()
      Returns true if the data type is unsigned.
      static void main​(java.lang.String[] args)  
      java.lang.String toString()
      The DataType name, eg "byte", "float", "String".
      static short unsignedByteToShort​(byte b)
      widen an unsigned byte to a short
      static long unsignedIntToLong​(int i)
      widen an unsigned int to a long
      static java.lang.String unsignedLongToString​(long li)
      convert an unsigned long to a String
      static int unsignedShortToInt​(short s)
      widen an unsigned short to an int
      static DataType valueOf​(java.lang.String name)
      返回带有指定名称的该类型的枚举常量。
      static DataType[] values()
      按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

      • 从类继承的方法 java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

      • 从类继承的方法 java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • 方法详细资料

      • values

        public static DataType[] values()
        按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示: 
        for (DataType c : DataType.values())
    System.out.println(c);
        返回:
        按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

      • valueOf

        public static DataType valueOf​(java.lang.String name)
        返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)
        参数:
        name - 要返回的枚举常量的名称。
        返回:
        返回带有指定名称的枚举常量
        抛出:
        java.lang.IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量
        java.lang.NullPointerException - 如果参数为空值

      • toString

        public java.lang.String toString()
        The DataType name, eg "byte", "float", "String".
        覆盖:
        toString 在类中 java.lang.Enum<DataType>
        返回:
        The DataType name

      • getSize

        public int getSize()
        Size in bytes of one element of this data type. Strings dont know, so return 0. Structures return 1.
        返回:
        Size in bytes of one element of this data type.

      • getClassType

        public java.lang.Class getClassType()

      • getPrimitiveClassType

        public java.lang.Class getPrimitiveClassType()
        The primitive class type: char, byte, float, double, short, int, long, boolean, String, StructureData, StructureDataIterator, ByteBuffer.
        返回:
        the primitive class type

      • isUnsigned

        public boolean isUnsigned()
        Returns true if the data type is unsigned. For non-integral data types, it is guaranteed to be false.
        返回:
        true if the data type is unsigned.

      • getNumber

        public int getNumber()
        Returns A unique number for each of the different built-in types. These are roughly ordered from least-to-most precision.
        返回:

      • isString

        public boolean isString()
        Is String or Char
        返回:
        true if String or Char

      • isBoolean

        public boolean isBoolean()
        Is Boolean
        返回:
        true if Boolean

      • isNumeric

        public boolean isNumeric()
        Is Byte, Float, Double, Int, Short, or Long
        返回:
        true if numeric

      • isIntegral

        public boolean isIntegral()
        Is Byte, Int, Short, or Long
        返回:
        true if integral

      • isFloatingPoint

        public boolean isFloatingPoint()
        Is Float or Double
        返回:
        true if floating point type

      • isEnum

        public boolean isEnum()
        Is this an enumeration types?
        返回:
        true if ENUM1, 2, or 4

      • getType

        public static DataType getType​(java.lang.String name)
        Find the DataType that matches this name.
        参数:
        name - find DataType with this name.
        返回:
        DataType or null if no match.

      • getType

        public static DataType getType​(java.lang.Class c)
        Find the DataType that matches this class.
        参数:
        c - primitive or object class, eg float.class or Float.class
        返回:
        DataType or null if no match.

      • getType

        public static DataType getType​(java.lang.Class c,
                               boolean isUnsigned)
        Find the DataType that matches this class.
        参数:
        c - primitive or object class, eg float.class or Float.class
        返回:
        DataType or null if no match.

      • unsignedLongToString

        public static java.lang.String unsignedLongToString​(long li)
        convert an unsigned long to a String
        参数:
        li - unsigned int
        返回:
        equivilent long value

      • unsignedIntToLong

        public static long unsignedIntToLong​(int i)
        widen an unsigned int to a long
        参数:
        i - unsigned int
        返回:
        equivilent long value

      • unsignedShortToInt

        public static int unsignedShortToInt​(short s)
        widen an unsigned short to an int
        参数:
        s - unsigned short
        返回:
        equivilent int value

      • unsignedByteToShort

        public static short unsignedByteToShort​(byte b)
        widen an unsigned byte to a short
        参数:
        b - unsigned byte
        返回:
        equivilent short value

      • main

        public static void main​(java.lang.String[] args)