com.metasolutions.jfcml.helpers
Class Primative

java.lang.Object
  com.metasolutions.jfcml.helpers.Primative

public class Primative
extends Object

Used by the JFCML interpreter to internally classify primitive entities. This class is a generic, immutable wrapper for the Java primitive wrapper classes (Byte,Boolean,Character,etc). As such, it provides a generic way to access the TYPE field belonging to the aforementioned classes.

Additionally, this class provides a mechanism to perform any valid cast on the wrapped primitive. For convenience, a constructor is declared for all primitive types.

New parsing abilities have been added to this class to support parsing Strings into Primative Objects, or arrays of Primative Objects. Supported syntax includes:

Version:

0.9, May 29, 2005

Author:

Shawn Curry

See Also:

ReflectionHandler

Field Summary

Class

TYPE The type of the primitive entity that this instance represents.

Constructor Summary

Primative(boolean b)
Construct a Primitive from a boolean.

Primative(byte b)
Construct a Primitive from a byte.

Primative(char c)
Construct a Primitive from a char.

Primative(Class type, Object val)
Construct a Primitive from a Java wrapper class.

Primative(double d)
Construct a Primitive from a double.

Primative(float f)
Construct a Primitive from a float.

Primative(int i)
Construct a Primitive from an int.

Primative(long l)
Construct a Primitive from a long.

Primative(short s)
Construct a Primitive from a short.

Method Summary

static Primative	castToType(Class toCastTo, Primative toCast) Casts a Primative to another type.
Object	getValue() Returns the wrapped value.
static void	main(String[] args)
static Primative	parsePrimative(String s)
static Primative[]	parsePrimatives(String spec)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

TYPE

public final Class TYPE

The type of the primitive entity that this instance represents.

Constructor Detail

Primative

public Primative(boolean b)

Construct a Primitive from a boolean.

Parameters:

b - the boolean to wrap.

Primative

public Primative(byte b)

Construct a Primitive from a byte.

Parameters:

b - the byte to wrap.

Primative

public Primative(char c)

Construct a Primitive from a char.

Parameters:

c - the char to wrap.

Primative

public Primative(double d)

Construct a Primitive from a double.

Parameters:

d - the double to wrap.

Primative

public Primative(float f)

Construct a Primitive from a float.

Parameters:

f - the float to wrap.

Primative

public Primative(int i)

Construct a Primitive from an int.

Parameters:

i - the int to wrap.

Primative

public Primative(long l)

Construct a Primitive from a long.

Parameters:

l - the long to wrap.

Primative

public Primative(short s)

Construct a Primitive from a short.

Parameters:

s - the short to wrap.

Primative

public Primative(Class type,
                 Object val)

Construct a Primitive from a Java wrapper class.

Parameters:

type - the primative Class.

val - the primative value.

Throws:

RuntimeException - if the specified Class is not primative, or if the specified value is not primative.

Method Detail

getValue

public Object getValue()

Returns the wrapped value.

Returns:

the primative value, in it's standard Java wrapper class.

castToType

public static Primative castToType(Class toCastTo,
                                   Primative toCast)

Casts a Primative to another type.

Parameters:

toCastTo - the Class to cast to

toCast - the Primative Object to cast.

Returns:

the new Primative Object.

Throws:

IllegalArgumentException - if the specified Class is not primative, or if the specified Primative is a boolean, and the specified class not boolean.

toString

public String toString()

Overrides:

toString in class Object

parsePrimative

public static Primative parsePrimative(String s)

parsePrimatives

public static Primative[] parsePrimatives(String spec)

main

public static void main(String[] args)