Package org.jgroups
Class Header
- java.lang.Object
-
- org.jgroups.Header
-
- All Implemented Interfaces:
java.io.Externalizable
,java.io.Serializable
- Direct Known Subclasses:
AuthHeader
,BSH.BshHeader
,CAUSAL.CausalHeader
,CAUSAL.CausalNewViewHeader
,COMPRESS.CompressHeader
,DISCARD.DiscardHeader
,ENCRYPT.EncryptHeader
,FC.FcHeader
,FD_ALL.Header
,FD_SIMPLE.FdHeader
,FD_SOCK.FdHeader
,FD.FdHeader
,FLUSH.FlushHeader
,FragHeader
,GMS.GmsHeader
,HTOTAL.HTotalHeader
,MERGE3.CoordAnnouncement
,MERGEFAST.MergefastHeader
,MuxHeader
,NakAckHeader
,PingHeader
,PullPushAdapter.PullHeader
,RequestCorrelator.Header
,SEQUENCER.SequencerHeader
,SFC.Header
,SMACK.SmackHeader
,STABLE.StableHeader
,STATE_TRANSFER.StateHeader
,STREAMING_STATE_TRANSFER.StateHeader
,TcpHeader
,TpHeader
,TunnelHeader
,UdpHeader
,UNICAST.UnicastHeader
,VERIFY_SUSPECT.VerifyHeader
,VIEW_SYNC.ViewSyncHeader
public abstract class Header extends java.lang.Object implements java.io.Externalizable
Abstract base class for all headers to be added to a Message.- Author:
- Bela Ban
- See Also:
- Serialized Form
-
-
Field Summary
Fields Modifier and Type Field Description static int
HDR_OVERHEAD
-
Constructor Summary
Constructors Constructor Description Header()
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
size()
To be implemented by subclasses.java.lang.String
toString()
-
-
-
Field Detail
-
HDR_OVERHEAD
public static final int HDR_OVERHEAD
- See Also:
- Constant Field Values
-
-
Method Detail
-
size
public int 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 java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
-
-