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ObjectInputStream.GetField

public static abstract class ObjectInputStream.GetField
extends Object

java.lang.Object
   ↳ java.io.ObjectInputStream.GetField


Provide access to the persistent fields read from the input stream.

Summary

Public constructors

ObjectInputStream.GetField()

Public methods

abstract boolean defaulted(String name)

Return true if the named field is defaulted and has no value in this stream.

abstract boolean get(String name, boolean val)

Get the value of the named boolean field from the persistent field.

abstract byte get(String name, byte val)

Get the value of the named byte field from the persistent field.

abstract short get(String name, short val)

Get the value of the named short field from the persistent field.

abstract char get(String name, char val)

Get the value of the named char field from the persistent field.

abstract int get(String name, int val)

Get the value of the named int field from the persistent field.

abstract float get(String name, float val)

Get the value of the named float field from the persistent field.

abstract double get(String name, double val)

Get the value of the named double field from the persistent field.

abstract long get(String name, long val)

Get the value of the named long field from the persistent field.

abstract Object get(String name, Object val)

Get the value of the named Object field from the persistent field.

abstract ObjectStreamClass getObjectStreamClass()

Get the ObjectStreamClass that describes the fields in the stream.

Inherited methods

From class java.lang.Object

Public constructors

ObjectInputStream.GetField

Added in API level 1
ObjectInputStream.GetField ()

Public methods

defaulted

Added in API level 1
boolean defaulted (String name)

Return true if the named field is defaulted and has no value in this stream.

Parameters
name String: the name of the field
Returns
boolean true, if and only if the named field is defaulted
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if name does not correspond to a serializable field

get

Added in API level 1
boolean get (String name, 
                boolean val)

Get the value of the named boolean field from the persistent field.

Parameters
name String: the name of the field
val boolean: the default value to use if name does not have a value
Returns
boolean the value of the named boolean field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
byte get (String name, 
                byte val)

Get the value of the named byte field from the persistent field.

Parameters
name String: the name of the field
val byte: the default value to use if name does not have a value
Returns
byte the value of the named byte field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
short get (String name, 
                short val)

Get the value of the named short field from the persistent field.

Parameters
name String: the name of the field
val short: the default value to use if name does not have a value
Returns
short the value of the named short field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
char get (String name, 
                char val)

Get the value of the named char field from the persistent field.

Parameters
name String: the name of the field
val char: the default value to use if name does not have a value
Returns
char the value of the named char field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
int get (String name, 
                int val)

Get the value of the named int field from the persistent field.

Parameters
name String: the name of the field
val int: the default value to use if name does not have a value
Returns
int the value of the named int field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
float get (String name, 
                float val)

Get the value of the named float field from the persistent field.

Parameters
name String: the name of the field
val float: the default value to use if name does not have a value
Returns
float the value of the named float field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
double get (String name, 
                double val)

Get the value of the named double field from the persistent field.

Parameters
name String: the name of the field
val double: the default value to use if name does not have a value
Returns
double the value of the named double field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
long get (String name, 
                long val)

Get the value of the named long field from the persistent field.

Parameters
name String: the name of the field
val long: the default value to use if name does not have a value
Returns
long the value of the named long field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

get

Added in API level 1
Object get (String name, 
                Object val)

Get the value of the named Object field from the persistent field.

Parameters
name String: the name of the field
val Object: the default value to use if name does not have a value
Returns
Object the value of the named Object field
Throws
IOException if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException if type of name is not serializable or if the field type is incorrect

getObjectStreamClass

Added in API level 1
ObjectStreamClass getObjectStreamClass ()

Get the ObjectStreamClass that describes the fields in the stream.

Returns
ObjectStreamClass the descriptor class that describes the serializable fields
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