org.jgroups

Class Header

public abstract class Header extends Object implements Externalizable

Abstract base class for all headers to be added to a Message.

Author: Bela Ban

Field Summary
static longHDR_OVERHEAD
Constructor Summary
Header()
Method Summary
longsize()
To be implemented by subclasses.
StringtoString()

Field Detail

HDR_OVERHEAD

public static final long HDR_OVERHEAD

Constructor Detail

Header

public Header()

Method Detail

size

public long size()
To be implemented by subclasses. Return the size of this object for the serialized version of it. I.e. how many bytes this object takes when flattened into a buffer. This may be different for each instance, or can be the same. This may also just be an estimation. E.g. FRAG uses it on Message to determine whether or not to fragment the message. Fragmentation itself will be accurate, because the entire message will actually be serialized into a byte buffer, so we can determine the exact size.

toString

public String toString()
Copyright ? 1998-2005 Bela Ban. All Rights Reserved.