org.lsst.ccs.bus

Class ObjectNType

java.lang.Object

org.lsst.ccs.bus.ObjectNType

All Implemented Interfaces:

Serializable

public class ObjectNType
extends Object
implements Serializable

This class contains information about an object and it class. this information can be used in different ways:

• to store a primitive as an object (then is will be known for instance that the Object is not, for instance, of type Integer but of type int;
• to store a complex Object where the code that read may not have acces to the class. for this purpose the Object is "frozen" in a DataCapsule

Beware: the name of the class does not guarantees that the "frozen" object can be deserialized since the version of the class can differ.

Author:

bamade

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Class[]	WELL_KNOWN_TYPES

Constructor Summary

Constructors

Constructor and Description
ObjectNType(char value)
ObjectNType(Class clazz, Serializable value) keeps an object in a serialization-safe manner.
ObjectNType(double value)
ObjectNType(float value)
ObjectNType(int value)
ObjectNType(long value)
ObjectNType(Serializable value) general constructor to keep an object safely

Method Summary

Methods

Modifier and Type	Method and Description
String	getClassName() the name of the class of the contained Object.
Object	getData() return the data contained in a safe way: if the class of the stored Object is not in the ClassPath an Exception is thrown
Object	getRawData() gets the content "as is" (without deserializing)
boolean	isOfPrimitiveType() is the data to be considered of a primitive type
boolean	isOfWellKnownType() being of a "well known type" means that the data has not been "safely" Serialized
static boolean	isWellKnownType(Class clazz) is the class a "well known type" (primitive or defined in the constant array WELL_KNOWN_TYPES)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

WELL_KNOWN_TYPES

public static final Class[] WELL_KNOWN_TYPES

Constructor Detail

ObjectNType

public ObjectNType(Class clazz,
           Serializable value)

keeps an object in a serialization-safe manner.

Parameters:

clazz - mostly used to note an object of a primitive type (e.g. Integer.TYPE)

value - can be null

ObjectNType

public ObjectNType(Serializable value)

general constructor to keep an object safely

Parameters:

value -

ObjectNType

public ObjectNType(int value)

ObjectNType

public ObjectNType(long value)

ObjectNType

public ObjectNType(float value)

ObjectNType

public ObjectNType(double value)

ObjectNType

public ObjectNType(char value)

Method Detail

isWellKnownType

public static boolean isWellKnownType(Class clazz)

is the class a "well known type" (primitive or defined in the constant array WELL_KNOWN_TYPES)

Parameters:

clazz -

Returns:

getClassName

public String getClassName()

the name of the class of the contained Object.

Returns:

can be null!

isOfPrimitiveType

public boolean isOfPrimitiveType()

is the data to be considered of a primitive type

Returns:

isOfWellKnownType

public boolean isOfWellKnownType()

being of a "well known type" means that the data has not been "safely" Serialized

Returns:

getData

public Object getData()
               throws ClassNotFoundException

return the data contained in a safe way: if the class of the stored Object is not in the ClassPath an Exception is thrown

Returns:

Throws:

ClassNotFoundException

getRawData

public Object getRawData()

gets the content "as is" (without deserializing)

Returns:

toString

public String toString()

Overrides:

toString in class Object