Package org.jgroups.protocols.pbcast
Class GMS.GmsHeader
- java.lang.Object
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- org.jgroups.Header
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- org.jgroups.protocols.pbcast.GMS.GmsHeader
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- All Implemented Interfaces:
java.io.Externalizable
,java.io.Serializable
,Streamable
- Enclosing class:
- GMS
public static class GMS.GmsHeader extends Header implements Streamable
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static byte
CANCEL_MERGE
static byte
GET_DIGEST_REQ
static byte
GET_DIGEST_RSP
static byte
INSTALL_MERGE_VIEW
static byte
INSTALL_MERGE_VIEW_OK
static byte
JOIN_REQ
static byte
JOIN_REQ_WITH_STATE_TRANSFER
static byte
JOIN_RSP
static byte
LEAVE_REQ
static byte
LEAVE_RSP
static byte
MERGE_REQ
static byte
MERGE_RSP
static byte
VIEW
static byte
VIEW_ACK
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Fields inherited from class org.jgroups.Header
HDR_OVERHEAD
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description Address
getMember()
byte
getType()
void
readExternal(java.io.ObjectInput in)
void
readFrom(java.io.DataInputStream in)
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.java.lang.String
toString()
static java.lang.String
type2String(int type)
void
writeExternal(java.io.ObjectOutput out)
void
writeTo(java.io.DataOutputStream out)
Write the entire state of the current object (including superclasses) to outstream.
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Field Detail
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JOIN_REQ
public static final byte JOIN_REQ
- See Also:
- Constant Field Values
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JOIN_RSP
public static final byte JOIN_RSP
- See Also:
- Constant Field Values
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LEAVE_REQ
public static final byte LEAVE_REQ
- See Also:
- Constant Field Values
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LEAVE_RSP
public static final byte LEAVE_RSP
- See Also:
- Constant Field Values
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VIEW
public static final byte VIEW
- See Also:
- Constant Field Values
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MERGE_REQ
public static final byte MERGE_REQ
- See Also:
- Constant Field Values
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MERGE_RSP
public static final byte MERGE_RSP
- See Also:
- Constant Field Values
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INSTALL_MERGE_VIEW
public static final byte INSTALL_MERGE_VIEW
- See Also:
- Constant Field Values
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CANCEL_MERGE
public static final byte CANCEL_MERGE
- See Also:
- Constant Field Values
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VIEW_ACK
public static final byte VIEW_ACK
- See Also:
- Constant Field Values
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JOIN_REQ_WITH_STATE_TRANSFER
public static final byte JOIN_REQ_WITH_STATE_TRANSFER
- See Also:
- Constant Field Values
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INSTALL_MERGE_VIEW_OK
public static final byte INSTALL_MERGE_VIEW_OK
- See Also:
- Constant Field Values
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GET_DIGEST_REQ
public static final byte GET_DIGEST_REQ
- See Also:
- Constant Field Values
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GET_DIGEST_RSP
public static final byte GET_DIGEST_RSP
- See Also:
- Constant Field Values
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Constructor Detail
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GmsHeader
public GmsHeader()
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GmsHeader
public GmsHeader(byte type)
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GmsHeader
public GmsHeader(byte type, View view)
Used for VIEW header
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GmsHeader
public GmsHeader(byte type, Address mbr)
Used for JOIN_REQ or LEAVE_REQ header
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GmsHeader
public GmsHeader(byte type, JoinRsp join_rsp)
Used for JOIN_RSP header
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Method Detail
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getType
public byte getType()
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getMember
public Address getMember()
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type2String
public static java.lang.String type2String(int type)
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Throws:
java.io.IOException
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readExternal
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
- Specified by:
readExternal
in interfacejava.io.Externalizable
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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writeTo
public void writeTo(java.io.DataOutputStream out) throws java.io.IOException
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:
java.io.IOException
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readFrom
public void readFrom(java.io.DataInputStream in) throws java.io.IOException, java.lang.IllegalAccessException, java.lang.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:
java.io.IOException
java.lang.IllegalAccessException
java.lang.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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