ucar.ma2

Enum DataType

java.lang.Object

java.lang.Enum<DataType>

ucar.ma2.DataType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DataType>

public enum DataType
extends java.lang.Enum<DataType>

Type-safe enumeration of data types.

Author:

john caron

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOOLEAN
BYTE
CHAR
DOUBLE
ENUM1
ENUM2
ENUM4
FLOAT
INT
LONG
OPAQUE
SEQUENCE
SHORT
STRING
STRUCTURE

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Class	getClassType()
java.lang.Class	getPrimitiveClassType() The primitive class type: char, byte, float, double, short, int, long, boolean, String, StructureData, StructureDataIterator, ByteBuffer.
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.String name) Find the DataType that matches this name.
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
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 int	unsignedShortToInt(short s) widen an unsigned short to an int
static DataType	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static DataType[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BOOLEAN

public static final DataType BOOLEAN

BYTE

public static final DataType BYTE

CHAR

public static final DataType CHAR

SHORT

public static final DataType SHORT

INT

public static final DataType INT

LONG

public static final DataType LONG

FLOAT

public static final DataType FLOAT

DOUBLE

public static final DataType DOUBLE

SEQUENCE

public static final DataType SEQUENCE

STRING

public static final DataType STRING

STRUCTURE

public static final DataType STRUCTURE

ENUM1

public static final DataType ENUM1

ENUM2

public static final DataType ENUM2

ENUM4

public static final DataType ENUM4

OPAQUE

public static final DataType OPAQUE

Method Detail

values

public static DataType[] 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 (DataType c : DataType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DataType 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

toString

public java.lang.String toString()

The DataType name, eg "byte", "float", "String".

Overrides:

toString in class java.lang.Enum<DataType>

getSize

public int getSize()

Size in bytes of one element of this data type. Strings dont know, so return 0. Structures return 1.

Returns:

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.

Returns:

the primitive class type

isString

public boolean isString()

Is String or Char

Returns:

true if String or Char

isNumeric

public boolean isNumeric()

Is Byte, Float, Double, Int, Short, or Long

Returns:

true if numeric

isIntegral

public boolean isIntegral()

Is Byte, Int, Short, or Long

Returns:

true if integral

isFloatingPoint

public boolean isFloatingPoint()

Is Float or Double

Returns:

true if floating point type

isEnum

public boolean isEnum()

Is this an enumeration types?

Returns:

true if ENUM1, 2, or 4

getType

public static DataType getType(java.lang.String name)

Find the DataType that matches this name.

Parameters:

name - find DataType with this name.

Returns:

DataType or null if no match.

getType

public static DataType getType(java.lang.Class c)

Find the DataType that matches this class.

Parameters:

c - primitive or object class, eg float.class or Float.class

Returns:

DataType or null if no match.

unsignedIntToLong

public static long unsignedIntToLong(int i)

widen an unsigned int to a long

Parameters:

i - unsigned int

Returns:

equivilent long value

unsignedShortToInt

public static int unsignedShortToInt(short s)

widen an unsigned short to an int

Parameters:

s - unsigned short

Returns:

equivilent int value

unsignedByteToShort

public static short unsignedByteToShort(byte b)

widen an unsigned byte to a short

Parameters:

b - unsigned byte

Returns:

equivilent short value