Package org.jgroups.protocols
Class FD.FdHeader
java.lang.Object
org.jgroups.Header
org.jgroups.protocols.FD.FdHeader
- All Implemented Interfaces:
Externalizable
,Serializable
,Streamable
- Enclosing class:
FD
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final byte
static final byte
static final byte
static final byte
Fields inherited from class org.jgroups.Header
HDR_OVERHEAD
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Constructor Summary
Constructors -
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 closedint
size()
To be implemented by subclasses.toString()
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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HEARTBEAT
public static final byte HEARTBEAT- See Also:
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HEARTBEAT_ACK
public static final byte HEARTBEAT_ACK- See Also:
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SUSPECT
public static final byte SUSPECT- See Also:
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NOT_MEMBER
public static final byte NOT_MEMBER- See Also:
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Constructor Details
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FdHeader
public FdHeader() -
FdHeader
public FdHeader(byte type) -
FdHeader
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Method Details
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toString
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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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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. -
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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