public class ObjectStreamClass extends Object implements Serializable
Serialization's descriptor for classes. It contains the name and serialVersionUID of the class. The ObjectStreamClass for a specific class loaded in this Java VM can be found/created using the lookup method.
The algorithm to compute the SerialVersionUID is described in Object Serialization Specification, Section 4.6, Stream Unique Identifiers.
ObjectStreamField
, Object Serialization Specification, Section 4, Class Descriptors, Serialized Formpublic static final ObjectStreamField[] NO_FIELDS
serialPersistentFields value indicating no serializable fields
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.
cl
- class for which to get the descriptorpublic static ObjectStreamClass lookupAny(Class<?> cl)
Returns the descriptor for any class, regardless of whether it implements Serializable
.
cl
- class for which to get the descriptorpublic 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.
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.
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.
Class
instance that this descriptor representspublic ObjectStreamField[] getFields()
Return an array of the fields of this serializable class.
public ObjectStreamField getField(String name)
Get the field of this class by name.
name
- the name of the data field to look forpublic String toString()
Return a string describing this ObjectStreamClass.
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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