Module ojalgo

Package org.ojalgo.machine

Enum Class JavaType

java.lang.Object

java.lang.Enum<JavaType>

org.ojalgo.machine.JavaType

All Implemented Interfaces:

Serializable, Comparable<JavaType>, Constable

public enum JavaType
extends Enum<JavaType>

  B   byte       signed byte
  C   char       Unicode character code point in the Basic Multilingual Plane,
                 encoded with UTF-16
  D   double     double-precision floating-point value
  F   float      single-precision floating-point value
  I   int        integer
  J   long       long integer
  L ClassName ;  reference             an instance of class ClassName
  S   short      signed short
  Z   boolean    true or false
  [   reference  one array dimension
 

https://stackoverflow.com/questions/32768036/why-is-l-the-prefix-for-reference-types-instead-of-some-other-letter

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
BOOLEAN
BYTE
CHAR
DOUBLE
FLOAT
INT
LONG
REFERENCE	4 bytes with 32-bit JVM or 64-bit JVM with compressed pointers (All JVM:s assigned less than 32GB)
SHORT

Field Summary

Fields

Modifier and Type	Field	Description
private final int	myInformationBits
private final Class<?>	myJavaClass
private final long	myMemoryBytes

Constructor Summary

Constructors

Modifier	Constructor	Description
private	JavaType(Class<?> aClass, int informationBits, long memoryBytes)

Method Summary

Modifier and Type	Method	Description
static Class<?>	box(Class<?> type)	Return the boxed wrapper type for a primitive Class.
final long	estimateSizeOfWrapperClass()
(package private) final int	getInformationBits()
Class<?>	getJavaClass()
static final JavaType	match(Class<?> aClass)
final long	memory()
static Class<?>	resolveType(String name)
static Class<?>	unbox(Class<?> type)	Return the primitive type for a boxed wrapper Class.
static JavaType	valueOf(String name)	Returns the enum constant of this class with the specified name.
static JavaType[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

BOOLEAN

public static final JavaType BOOLEAN

BYTE

public static final JavaType BYTE

CHAR

public static final JavaType CHAR

DOUBLE

public static final JavaType DOUBLE

FLOAT

public static final JavaType FLOAT

INT

public static final JavaType INT

LONG

public static final JavaType LONG

REFERENCE

public static final JavaType REFERENCE

4 bytes with 32-bit JVM or 64-bit JVM with compressed pointers (All JVM:s assigned less than 32GB)

SHORT

public static final JavaType SHORT

Field Details

myInformationBits

private final int myInformationBits

myJavaClass

private final Class<?> myJavaClass

myMemoryBytes

private final long myMemoryBytes

Constructor Details

JavaType

private JavaType(Class<?> aClass,
 int informationBits,
 long memoryBytes)

Method Details

values

public static JavaType[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static JavaType valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

box

public static Class<?> box(Class<?> type)

Return the boxed wrapper type for a primitive Class. If the input is null or not a primitive, it is returned unchanged. Examples: int.class -> Integer.class, void.class -> Void.class.

unbox

public static Class<?> unbox(Class<?> type)

Return the primitive type for a boxed wrapper Class. If the input is null or not a wrapper, it is returned unchanged. Examples: Integer.class -> int.class.

match

public static final JavaType match(Class<?> aClass)

estimateSizeOfWrapperClass

public final long estimateSizeOfWrapperClass()

getJavaClass

public Class<?> getJavaClass()

memory

public final long memory()

getInformationBits

final int getInformationBits()

resolveType

public static Class<?> resolveType(String name)
                            throws ClassNotFoundException

Throws:

ClassNotFoundException