Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ObjectInputStream.GetField - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.io
Class ObjectInputStream.GetField

java.lang.Object
  |
  +--java.io.ObjectInputStream.GetField

Enclosing class:: ObjectInputStream

public abstract static class ObjectInputStream.GetField
extends Object

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

Constructor Summary

ObjectInputStream.GetField()


Method Summary

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

abstract byte get(String name, byte defvalue)
          Get the value of the named byte field from the persistent fields.

abstract char get(String name, char defvalue)
          Get the value of the named char field from the persistent fields.

abstract double get(String name, double defvalue)
          Get the value of the named double field from the persistent field.

abstract float get(String name, float defvalue)
          Get the value of the named float field from the persistent fields.

abstract int get(String name, int defvalue)
          Get the value of the named int field from the persistent fields.

abstract long get(String name, long defvalue)
          Get the value of the named long field from the persistent fields.

abstract Object get(String name, Object defvalue)
          Get the value of the named Object field from the persistent field.

abstract short get(String name, short defvalue)
          Get the value of the named short field from the persistent fields.

abstract ObjectStreamClass getObjectStreamClass()
          Get the ObjectStreamClass that describes the fields in the stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectInputStream.GetField

public ObjectInputStream.GetField()

Method Detail

getObjectStreamClass

public abstract ObjectStreamClass getObjectStreamClass()

Get the ObjectStreamClass that describes the fields in the stream.

defaulted

public abstract boolean defaulted(String name)
                           throws IOException,
                                  IllegalArgumentException

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

get

public abstract boolean get(String name,
                            boolean defvalue)
                     throws IOException,
                            IllegalArgumentException

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

get

public abstract char get(String name,
                         char defvalue)
                  throws IOException,
                         IllegalArgumentException

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

get

public abstract byte get(String name,
                         byte defvalue)
                  throws IOException,
                         IllegalArgumentException

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

get

public abstract short get(String name,
                          short defvalue)
                   throws IOException,
                          IllegalArgumentException

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

get

public abstract int get(String name,
                        int defvalue)
                 throws IOException,
                        IllegalArgumentException

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

get

public abstract long get(String name,
                         long defvalue)
                  throws IOException,
                         IllegalArgumentException

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

get

public abstract float get(String name,
                          float defvalue)
                   throws IOException,
                          IllegalArgumentException

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

get

public abstract double get(String name,
                           double defvalue)
                    throws IOException,
                           IllegalArgumentException

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

get

public abstract Object get(String name,
                           Object defvalue)
                    throws IOException,
                           IllegalArgumentException

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