org.jgroups.protocols
Class PingHeader

java.lang.Object
  extended by org.jgroups.Header
      extended by org.jgroups.protocols.PingHeader
All Implemented Interfaces:
java.io.Externalizable, java.io.Serializable, Streamable

public class PingHeader
extends Header
implements Streamable

See Also:
Serialized Form

Field Summary
 PingRsp arg
           
static byte GET_MBRS_REQ
           
static byte GET_MBRS_RSP
           
 byte type
           
 
Fields inherited from class org.jgroups.Header
HDR_OVERHEAD
 
Constructor Summary
PingHeader()
           
PingHeader(byte type, PingRsp arg)
           
 
Method Summary
 void readExternal(java.io.ObjectInput in)
           
 void readFrom(java.io.DataInputStream instream)
          Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
 int size()
          To be implemented by subclasses.
 java.lang.String toString()
           
 void writeExternal(java.io.ObjectOutput out)
           
 void writeTo(java.io.DataOutputStream outstream)
          Write the entire state of the current object (including superclasses) to outstream.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

GET_MBRS_REQ

public static final byte GET_MBRS_REQ
See Also:
Constant Field Values

GET_MBRS_RSP

public static final byte GET_MBRS_RSP
See Also:
Constant Field Values

type

public byte type

arg

public PingRsp arg
Constructor Detail

PingHeader

public PingHeader()

PingHeader

public PingHeader(byte type,
                  PingRsp arg)
Method Detail

size

public int size()
Description copied from class: Header
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.

Overrides:
size in class Header

toString

public java.lang.String toString()
Overrides:
toString in class Header

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
Specified by:
writeExternal in interface java.io.Externalizable
Throws:
java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
Specified by:
readExternal in interface java.io.Externalizable
Throws:
java.io.IOException
java.lang.ClassNotFoundException

writeTo

public void writeTo(java.io.DataOutputStream outstream)
             throws java.io.IOException
Description copied from interface: Streamable
Write the entire state of the current object (including superclasses) to outstream. Note that the output stream must not be closed

Specified by:
writeTo in interface Streamable
Throws:
java.io.IOException

readFrom

public void readFrom(java.io.DataInputStream instream)
              throws java.io.IOException,
                     java.lang.IllegalAccessException,
                     java.lang.InstantiationException
Description copied from interface: Streamable
Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed

Specified by:
readFrom in interface Streamable
Throws:
java.io.IOException
java.lang.IllegalAccessException
java.lang.InstantiationException


Copyright ? 1998-2008 Bela Ban. All Rights Reserved.