1. Description
2. Field Summary
3. Method Summary
4. Field Details
   1. NO_FIELDS
5. Method Details
   1. lookup(Class)
   2. lookupAny(Class)
   3. getName()
   4. getSerialVersionUID()
   5. forClass()
   6. getFields()
   7. getField(String)
   8. toString()

All Implemented Interfaces:

Serializable

• Field Summary

  Fields
  Modifier and Type

  Field

  Description

  static final ObjectStreamField[]

  NO_FIELDS

  serialPersistentFields value indicating no serializable fields

• Method Summary

  All MethodsStatic MethodsInstance MethodsConcrete Methods

  Modifier and Type

  Method

  Description

  Class<?>

  forClass()

  Return the class in the local VM that this version is mapped to.

  ObjectStreamField

  getField(String name)

  Get the field of this class by name.

  ObjectStreamField[]

  getFields()

  Return an array of the fields of this serializable class.

  String

  getName()

  Returns the name of the class described by this descriptor.

  long

  getSerialVersionUID()

  Return the serialVersionUID for this class.

  static ObjectStreamClass

  lookup(Class<?> cl)

  Find the descriptor for a class that can be serialized.

  static ObjectStreamClass

  lookupAny(Class<?> cl)

  Returns the descriptor for any class, regardless of whether it implements Serializable.

  String

  toString()

  Return a string describing this ObjectStreamClass.

  Methods declared in class java.lang.Object

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

• Field Details

  • NO_FIELDS

    public static final ObjectStreamField[] NO_FIELDS

    serialPersistentFields value indicating no serializable fields

• Method Details

  • lookup

    public static ObjectStreamClass lookup(Class<?> cl)

    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 for which to get the descriptor

    Returns:

    the class descriptor for the specified class

  • lookupAny

    public static ObjectStreamClass lookupAny(Class<?> cl)

    Returns the descriptor for any class, regardless of whether it implements Serializable.

    Parameters:

    cl - class for which to get the descriptor

    Returns:

    the class descriptor for the specified class

    Since:

    1.6

  • getName

    public String getName()

    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.

    Returns:

    a string representing the name of the class

  • getSerialVersionUID

    public long getSerialVersionUID()

    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.

    Returns:

    the SUID of the class described by this descriptor

  • forClass

    public Class<?> forClass()

    Return the class in the local VM that this version is mapped to. Null is returned if there is no corresponding local class.

    Returns:

    the Class instance that this descriptor represents

  • getFields

    public ObjectStreamField[] getFields()

    Return an array of the fields of this serializable class.

    Returns:

    an array containing an element for each persistent field of this class. Returns an array of length zero if there are no fields.

    Since:

    1.2

  • getField

    public ObjectStreamField getField(String name)

    Get the field of this class by name.

    Parameters:

    name - the name of the data field to look for

    Returns:

    The ObjectStreamField object of the named field or null if there is no such named field.

  • toString

    public String toString()

    Return a string describing this ObjectStreamClass.

    Overrides:

    toString in class Object

    Returns:

    a string representation of the object

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