java.io

Class ObjectStreamClass

Implemented Interfaces:
Serializable

public class ObjectStreamClass
extends Object
implements Serializable

See Also:
Serialized Form

Field Summary

static ObjectStreamField[]
NO_FIELDS

Method Summary

Class
forClass()
Returns the class that this ObjectStreamClass represents.
ObjectStreamField
getField(String name)
ObjectStreamField[]
getFields()
Returns the serializable (non-static and non-transient) Fields of the class represented by this ObjectStreamClass.
String
getName()
Returns the name of the class that this ObjectStreamClass represents.
long
getSerialVersionUID()
Returns the serial version stream-unique identifier for the class represented by this ObjectStreamClass.
static ObjectStreamClass
lookup(Class cl)
Returns the ObjectStreamClass for cl.
String
toString()
Returns a textual representation of this ObjectStreamClass object including the name of the class it represents as well as that class's serial version stream-unique identifier.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NO_FIELDS

public static final ObjectStreamField[] NO_FIELDS

Method Details

forClass

public Class forClass()
Returns the class that this ObjectStreamClass represents. Null could be returned if this ObjectStreamClass was read from an ObjectInputStream and the class it represents cannot be found or loaded.

getField

public ObjectStreamField getField(String name)

getFields

public ObjectStreamField[] getFields()
Returns the serializable (non-static and non-transient) Fields of the class represented by this ObjectStreamClass. The Fields are sorted by name. If fields were obtained using serialPersistentFields and this array is faulty then the returned array of this method will be empty.
Returns:
the fields.

getName

public String getName()
Returns the name of the class that this ObjectStreamClass represents.
Returns:
the name of the class.

getSerialVersionUID

public long getSerialVersionUID()
Returns the serial version stream-unique identifier for the class represented by this ObjectStreamClass. This SUID is either defined by the class as static final long serialVersionUID or is calculated as specified in Javasoft's "Object Serialization Specification" XXX: add reference
Returns:
the serial version UID.

lookup

public static ObjectStreamClass lookup(Class cl)
Returns the ObjectStreamClass for cl. If cl is null, or is not Serializable, null is returned. ObjectStreamClass's are memorized; later calls to this method with the same class will return the same ObjectStreamClass object and no recalculation will be done. Warning: If this class contains an invalid serialPersistentField arrays lookup will not throw anything. However getFields() will return an empty array and ObjectOutputStream.writeObject(Object) will throw an InvalidClassException.
See Also:
Serializable

toString

public String toString()
Returns a textual representation of this ObjectStreamClass object including the name of the class it represents as well as that class's serial version stream-unique identifier.
Overrides:
toString in interface Object

ObjectStreamClass.java -- Class used to write class information about serialized objects. Copyright (C) 1998, 1999, 2000, 2001, 2003, 2005 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.