Package org.jgroups.protocols
Class UNICAST.UnicastHeader
java.lang.Object
org.jgroups.Header
org.jgroups.protocols.UNICAST.UnicastHeader
- All Implemented Interfaces:
Externalizable
,Serializable
,Streamable
- Enclosing class:
UNICAST
- 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
ConstructorsConstructorDescriptionUnicastHeader
(byte type, long seqno) UnicastHeader
(byte type, long seqno, long conn_id) UnicastHeader
(byte type, long seqno, long conn_id, boolean first) -
Method Summary
Modifier and TypeMethodDescriptionvoid
void
Read the state of the current object (including superclasses) from instream Note that the input stream must not be closedfinal int
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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DATA
public static final byte DATA- See Also:
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ACK
public static final byte ACK- See Also:
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SEND_FIRST_SEQNO
public static final byte SEND_FIRST_SEQNO- See Also:
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Constructor Details
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UnicastHeader
public UnicastHeader() -
UnicastHeader
public UnicastHeader(byte type, long seqno) -
UnicastHeader
public UnicastHeader(byte type, long seqno, long conn_id) -
UnicastHeader
public UnicastHeader(byte type, long seqno, long conn_id, boolean first)
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Method Details
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toString
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type2Str
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size
public final 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. -
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
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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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