ObjectStreamClass
open class ObjectStreamClass : Serializable
| kotlin.Any | |
| ↳ | java.io.ObjectStreamClass |
Serialization's descriptor for classes. It contains the name and serialVersionUID of the class. The ObjectStreamClass for a specific class loaded in this Java VM can be found/created using the lookup method.
The algorithm to compute the SerialVersionUID is described in Object Serialization Specification, Section 4.6, Stream Unique Identifiers.
Summary
| Public methods | |
|---|---|
| open Class<*>! |
forClass()Return the class in the local VM that this version is mapped to. |
| open ObjectStreamField! |
Get the field of this class by name. |
| open Array<ObjectStreamField!>! |
Return an array of the fields of this serializable class. |
| open String! |
getName()Returns the name of the class described by this descriptor. |
| open Long |
Return the serialVersionUID for this class. |
| open static ObjectStreamClass! |
Find the descriptor for a class that can be serialized. |
| open static ObjectStreamClass! |
Returns the descriptor for any class, regardless of whether it implements |
| open String |
toString()Return a string describing this ObjectStreamClass. |
| Properties | |
|---|---|
| static Array<ObjectStreamField!>! |
serialPersistentFields value indicating no serializable fields |
Public methods
forClass
open fun forClass(): Class<*>!
Return the class in the local VM that this version is mapped to. Null is returned if there is no corresponding local class.
| Return | |
|---|---|
Class<*>! |
the Class instance that this descriptor represents |
getField
open fun getField(name: String!): ObjectStreamField!
Get the field of this class by name.
| Parameters | |
|---|---|
name |
String!: the name of the data field to look for |
| Return | |
|---|---|
ObjectStreamField! |
The ObjectStreamField object of the named field or null if there is no such named field. |
getFields
open fun getFields(): Array<ObjectStreamField!>!
Return an array of the fields of this serializable class.
| Return | |
|---|---|
Array<ObjectStreamField!>! |
an array containing an element for each persistent field of this class. Returns an array of length zero if there are no fields. |
getName
open fun getName(): String!
Returns the name of the class described by this descriptor. This method returns the name of the class in the format that is used by the Class#getName method.
| Return | |
|---|---|
String! |
a string representing the name of the class |
getSerialVersionUID
open fun getSerialVersionUID(): Long
Return the serialVersionUID for this class. The serialVersionUID defines a set of classes all with the same name that have evolved from a common root class and agree to be serialized and deserialized using a common format. NonSerializable classes have a serialVersionUID of 0L.
| Return | |
|---|---|
Long |
the SUID of the class described by this descriptor |
lookup
open static fun lookup(cl: Class<*>!): ObjectStreamClass!
Find the descriptor for a class that can be serialized. Creates an ObjectStreamClass instance if one does not exist yet for class. Null is returned if the specified class does not implement java.io.Serializable or java.io.Externalizable.
| Parameters | |
|---|---|
cl |
Class<*>!: class for which to get the descriptor |
| Return | |
|---|---|
ObjectStreamClass! |
the class descriptor for the specified class |
lookupAny
open static fun lookupAny(cl: Class<*>!): ObjectStreamClass!
Returns the descriptor for any class, regardless of whether it implements Serializable.
| Parameters | |
|---|---|
cl |
Class<*>!: class for which to get the descriptor |
| Return | |
|---|---|
ObjectStreamClass! |
the class descriptor for the specified class |
toString
open fun toString(): String
Return a string describing this ObjectStreamClass.
| Return | |
|---|---|
String |
a string representation of the object. |
Properties
NO_FIELDS
static val NO_FIELDS: Array<ObjectStreamField!>!
serialPersistentFields value indicating no serializable fields