org.javagroups.protocols
Class PingHeader

java.lang.Object
  extended byorg.javagroups.Header
      extended byorg.javagroups.protocols.PingHeader
All Implemented Interfaces:
java.lang.Cloneable, java.io.Externalizable, java.io.Serializable

public class PingHeader
extends Header

See Also:
Serialized Form

Field Summary
 java.lang.Object arg
           
static int GET_MBRS_REQ
           
static int GET_MBRS_RSP
           
 int type
           
 
Fields inherited from class org.javagroups.Header
HDR_OVERHEAD
 
Constructor Summary
PingHeader()
           
PingHeader(int type, java.lang.Object arg)
           
 
Method Summary
 void readExternal(java.io.ObjectInput in)
           
 long size()
          To be implemented by subclasses.
 java.lang.String toString()
           
 void writeExternal(java.io.ObjectOutput out)
           
 
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 int GET_MBRS_REQ
See Also:
Constant Field Values

GET_MBRS_RSP

public static final int GET_MBRS_RSP
See Also:
Constant Field Values

type

public int type

arg

public java.lang.Object arg
Constructor Detail

PingHeader

public PingHeader()

PingHeader

public PingHeader(int type,
                  java.lang.Object arg)
Method Detail

size

public long 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
Throws:
java.io.IOException

readExternal

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


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