Package org.jgroups.protocols.pbcast
Class GMS.GmsHeader
java.lang.Object
org.jgroups.Header
org.jgroups.protocols.pbcast.GMS.GmsHeader
- All Implemented Interfaces:
Externalizable
,Serializable
,Streamable
- Enclosing class:
GMS
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final byte
static final byte
static final byte
static final byte
static final byte
static final byte
static final byte
static final byte
static final byte
static final byte
static 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 TypeMethodDescriptionbyte
getType()
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
type2String
(int type) 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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JOIN_REQ
public static final byte JOIN_REQ- See Also:
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JOIN_RSP
public static final byte JOIN_RSP- See Also:
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LEAVE_REQ
public static final byte LEAVE_REQ- See Also:
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LEAVE_RSP
public static final byte LEAVE_RSP- See Also:
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VIEW
public static final byte VIEW- See Also:
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MERGE_REQ
public static final byte MERGE_REQ- See Also:
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MERGE_RSP
public static final byte MERGE_RSP- See Also:
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INSTALL_MERGE_VIEW
public static final byte INSTALL_MERGE_VIEW- See Also:
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CANCEL_MERGE
public static final byte CANCEL_MERGE- See Also:
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VIEW_ACK
public static final byte VIEW_ACK- See Also:
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JOIN_REQ_WITH_STATE_TRANSFER
public static final byte JOIN_REQ_WITH_STATE_TRANSFER- See Also:
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INSTALL_MERGE_VIEW_OK
public static final byte INSTALL_MERGE_VIEW_OK- See Also:
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GET_DIGEST_REQ
public static final byte GET_DIGEST_REQ- See Also:
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GET_DIGEST_RSP
public static final byte GET_DIGEST_RSP- See Also:
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Constructor Details
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GmsHeader
public GmsHeader() -
GmsHeader
public GmsHeader(byte type) -
GmsHeader
Used for VIEW header -
GmsHeader
Used for JOIN_REQ or LEAVE_REQ header -
GmsHeader
Used for JOIN_RSP header
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Method Details
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getType
public byte getType() -
getMember
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toString
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type2String
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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
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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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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.
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