ObjectInputStream.GetField

public static abstract class ObjectInputStream.GetField extends Object

GetField is an inner class that provides access to the persistent fields read from the source stream.

Public Constructor Summary

Public Method Summary

abstract boolean
defaulted(String name)
Indicates if the field identified by name is defaulted.
abstract boolean
get(String name, boolean defaultValue)
Gets the value of the boolean field identified by name from the persistent field.
abstract byte
get(String name, byte defaultValue)
Gets the value of the byte field identified by name from the persistent field.
abstract short
get(String name, short defaultValue)
Gets the value of the short field identified by name from the persistent field.
abstract char
get(String name, char defaultValue)
Gets the value of the character field identified by name from the persistent field.
abstract int
get(String name, int defaultValue)
Gets the value of the integer field identified by name from the persistent field.
abstract float
get(String name, float defaultValue)
Gets the value of the float field identified by name from the persistent field.
abstract double
get(String name, double defaultValue)
Gets the value of the double field identified by name from the persistent field.
abstract long
get(String name, long defaultValue)
Gets the value of the long field identified by name from the persistent field.
abstract Object
get(String name, Object defaultValue)
Gets the value of the object field identified by name from the persistent field.
abstract ObjectStreamClass
getObjectStreamClass()
Gets the ObjectStreamClass that describes a field.

Inherited Method Summary

Public Constructors

public ObjectInputStream.GetField ()

Public Methods

public abstract boolean defaulted (String name)

Indicates if the field identified by name is defaulted. This means that it has no value in this stream.

Parameters
name the name of the field to check.
Returns
  • true if the field is defaulted, false otherwise.
Throws
IllegalArgumentException if name does not identify a serializable field.
IOException if an error occurs while reading from the source input stream.

public abstract boolean get (String name, boolean defaultValue)

Gets the value of the boolean field identified by name from the persistent field.

Parameters
name the name of the field to get.
defaultValue the default value that is used if the field does not have a value when read from the source stream.
Returns
  • the value of the field identified by name.
Throws
IOException if an error occurs while reading from the source input stream.
IllegalArgumentException if the type of the field identified by name is not boolean.

public abstract byte get (String name, byte defaultValue)

Gets the value of the byte field identified by name from the persistent field.

Parameters
name the name of the field to get.
defaultValue the default value that is used if the field does not have a value when read from the source stream.
Returns
  • the value of the field identified by name.
Throws
IOException if an error occurs while reading from the source input stream.
IllegalArgumentException if the type of the field identified by name is not byte.

public abstract short get (String name, short defaultValue)

Gets the value of the short field identified by name from the persistent field.

Parameters
name the name of the field to get.
defaultValue the default value that is used if the field does not have a value when read from the source stream.
Returns
  • the value of the field identified by name.
Throws
IOException if an error occurs while reading from the source input stream.
IllegalArgumentException if the type of the field identified by name is not short.

public abstract char get (String name, char defaultValue)

Gets the value of the character field identified by name from the persistent field.

Parameters
name the name of the field to get.
defaultValue the default value that is used if the field does not have a value when read from the source stream.
Returns
  • the value of the field identified by name.
Throws
IOException if an error occurs while reading from the source input stream.
IllegalArgumentException if the type of the field identified by name is not char.

public abstract int