org.jgroups.protocols

Class FC.FcHeader

Enclosing Class:
FC
Implemented Interfaces:
Externalizable, Streamable

public static class FC.FcHeader
extends Header
implements Streamable

Field Summary

static byte
CREDIT_REQUEST
static byte
REPLENISH

Fields inherited from class org.jgroups.Header

HDR_OVERHEAD

Constructor Summary

FcHeader()
FcHeader(byte type)

Method Summary

void
readExternal(ObjectInput in)
void
readFrom(DataInputStream in)
Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
long
size()
To be implemented by subclasses.
String
toString()
void
writeExternal(ObjectOutput out)
void
writeTo(DataOutputStream out)
Write the entire state of the current object (including superclasses) to outstream.

Methods inherited from class org.jgroups.Header

size, toString

Field Details

CREDIT_REQUEST

public static final byte CREDIT_REQUEST
Field Value:
2

REPLENISH

public static final byte REPLENISH
Field Value:
1

Constructor Details

FcHeader

public FcHeader()

FcHeader

public FcHeader(byte type)

Method Details

readExternal

public void readExternal(ObjectInput in)
            throws IOException,
                   ClassNotFoundException

readFrom

public void readFrom(DataInputStream in)
            throws IOException,
                   IllegalAccessException,
                   InstantiationException
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

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.
Overrides:
size in interface Header

toString

public String toString()
Overrides:
toString in interface Header

writeExternal

public void writeExternal(ObjectOutput out)
            throws IOException

writeTo

public void writeTo(DataOutputStream out)
            throws IOException
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

Copyright B) 1998-2005 Bela Ban. All Rights Reserved.