java.io

Interface Externalizable

All Superinterfaces:

Serializable

public interface Externalizable
extends Serializable

Defines an interface for classes that want to be serializable, but have their own binary representation.

Method Summary

Modifier and Type	Method and Description
void	readExternal(ObjectInput input) Reads the next object from the ObjectInput input.
void	writeExternal(ObjectOutput output) Writes the receiver to the ObjectOutput output.

Method Detail

readExternal

void readExternal(ObjectInput input)
           throws IOException,
                  ClassNotFoundException

Reads the next object from the ObjectInput input.

Parameters:

input - the ObjectInput from which the next object is read.

Throws:

IOException - if an error occurs attempting to read from input.

ClassNotFoundException - if the class of the instance being loaded cannot be found.

writeExternal

void writeExternal(ObjectOutput output)
            throws IOException

Writes the receiver to the ObjectOutput output.

Parameters:

output - the ObjectOutput to write the object to.

Throws:

IOException - if an error occurs attempting to write to output.