Package org.jgroups.protocols.pbcast
Class NakAckHeader
java.lang.Object
org.jgroups.Header
org.jgroups.protocols.pbcast.NakAckHeader
- All Implemented Interfaces:
Externalizable
,Serializable
,Streamable
- Version:
- $Id: NakAckHeader.java,v 1.21 2007/08/20 10:46:53 belaban Exp $
- Author:
- Bela Ban
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final byte
static final byte
static final byte
Fields inherited from class org.jgroups.Header
HDR_OVERHEAD
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Constructor Summary
ConstructorsConstructorDescriptionNakAckHeader
(byte type, long seqno) Constructor for regular messagesNakAckHeader
(byte type, long low, long high) Constructor for retransmit requests/responses (low and high define the range of msgs)NakAckHeader
(byte type, long low, long high, Address sender) -
Method Summary
Modifier and TypeMethodDescriptioncopy()
void
void
Read the state of the current object (including superclasses) from instream Note that the input stream must not be closedint
size()
To be implemented by subclasses.toString()
static String
type2Str
(byte t) void
void
writeTo
(DataOutputStream out) Write the entire state of the current object (including superclasses) to outstream.
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Field Details
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MSG
public static final byte MSG- See Also:
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XMIT_REQ
public static final byte XMIT_REQ- See Also:
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XMIT_RSP
public static final byte XMIT_RSP- See Also:
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Constructor Details
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NakAckHeader
public NakAckHeader() -
NakAckHeader
public NakAckHeader(byte type, long seqno) Constructor for regular messages -
NakAckHeader
public NakAckHeader(byte type, long low, long high) Constructor for retransmit requests/responses (low and high define the range of msgs) -
NakAckHeader
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Method Details
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writeExternal
- Specified by:
writeExternal
in interfaceExternalizable
- Throws:
IOException
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readExternal
- Specified by:
readExternal
in interfaceExternalizable
- Throws:
IOException
ClassNotFoundException
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writeTo
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 interfaceStreamable
- Throws:
IOException
-
readFrom
public void readFrom(DataInputStream in) throws IOException, IllegalAccessException, 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 interfaceStreamable
- Throws:
IOException
IllegalAccessException
InstantiationException
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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. -
copy
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type2Str
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toString
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