Package org.jgroups
Class ExtendedReceiverAdapter
java.lang.Object
org.jgroups.ExtendedReceiverAdapter
- All Implemented Interfaces:
ExtendedMembershipListener
,ExtendedMessageListener
,ExtendedReceiver
,MembershipListener
,MessageListener
,Receiver
- Direct Known Subclasses:
Draw
- Version:
- $Id: ExtendedReceiverAdapter.java,v 1.6 2006/10/11 14:34:36 belaban Exp $
- Author:
- Bela Ban
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
block()
Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages.byte[]
getState()
Answers the group state; e.g., when joining.void
getState
(OutputStream ostream) Allows an application to write a state through a provided OutputStream.byte[]
Allows an application to provide a partial state as a byte arrayvoid
getState
(String state_id, OutputStream ostream) Allows an application to write a partial state through a provided OutputStream.void
Called when a message is received.void
setState
(byte[] state) Sets the group state; e.g., when joining.void
setState
(InputStream istream) Allows an application to read a state through a provided InputStream.void
Allows an application to read a partial state indicated by state_id from a given state byte array parameter.void
setState
(String state_id, InputStream istream) Allows an application to read a partial state through a provided InputStream.void
Called whenever a member is suspected of having crashed, but has not yet been excluded.void
unblock()
Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again.void
viewAccepted
(View new_view) Called when a change in membership has occurred.
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Constructor Details
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ExtendedReceiverAdapter
public ExtendedReceiverAdapter()
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Method Details
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getState
Description copied from interface:ExtendedMessageListener
Allows an application to provide a partial state as a byte array- Specified by:
getState
in interfaceExtendedMessageListener
- Parameters:
state_id
- id of the partial state requested- Returns:
- partial state for the given state_id
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setState
Description copied from interface:ExtendedMessageListener
Allows an application to read a partial state indicated by state_id from a given state byte array parameter.- Specified by:
setState
in interfaceExtendedMessageListener
- Parameters:
state_id
- id of the partial state requestedstate
- partial state for the given state_id
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receive
Description copied from interface:MessageListener
Called when a message is received.- Specified by:
receive
in interfaceMessageListener
- Parameters:
msg
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getState
public byte[] getState()Description copied from interface:MessageListener
Answers the group state; e.g., when joining.- Specified by:
getState
in interfaceMessageListener
- Returns:
- byte[]
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setState
public void setState(byte[] state) Description copied from interface:MessageListener
Sets the group state; e.g., when joining.- Specified by:
setState
in interfaceMessageListener
- Parameters:
state
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viewAccepted
Description copied from interface:MembershipListener
Called when a change in membership has occurred. No long running actions or sending of messages should be done in this callback. If some long running action needs to be performed, it should be done in a separate thread. Note that on reception of the first view (a new member just joined), the channel will not yet be in the connected state. This only happens whenChannel.connect(String)
returns.- Specified by:
viewAccepted
in interfaceMembershipListener
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suspect
Description copied from interface:MembershipListener
Called whenever a member is suspected of having crashed, but has not yet been excluded.- Specified by:
suspect
in interfaceMembershipListener
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block
public void block()Description copied from interface:MembershipListener
Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages. Any messages sent after returning from this callback might get blocked by the FLUSH protocol. When the FLUSH protocol is done, and messages can be sent again, the FLUSH protocol will simply unblock all pending messages. If a callback for unblocking is desired, implementExtendedMembershipListener.unblock()
. Note that block() is the equivalent of reception of a BlockEvent in the pull mode.- Specified by:
block
in interfaceMembershipListener
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unblock
public void unblock()Description copied from interface:ExtendedMembershipListener
Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again. This callback only needs to be implemented if we require a notification of that.- Specified by:
unblock
in interfaceExtendedMembershipListener
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getState
Description copied from interface:ExtendedMessageListener
Allows an application to write a state through a provided OutputStream. An application is obligated to always close the given OutputStream reference.- Specified by:
getState
in interfaceExtendedMessageListener
- Parameters:
ostream
- the OutputStream- See Also:
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getState
Description copied from interface:ExtendedMessageListener
Allows an application to write a partial state through a provided OutputStream. An application is obligated to always close the given OutputStream reference.- Specified by:
getState
in interfaceExtendedMessageListener
- Parameters:
state_id
- id of the partial state requestedostream
- the OutputStream- See Also:
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setState
Description copied from interface:ExtendedMessageListener
Allows an application to read a state through a provided InputStream. An application is obligated to always close the given InputStream reference.- Specified by:
setState
in interfaceExtendedMessageListener
- Parameters:
istream
- the InputStream- See Also:
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setState
Description copied from interface:ExtendedMessageListener
Allows an application to read a partial state through a provided InputStream. An application is obligated to always close the given InputStream reference.- Specified by:
setState
in interfaceExtendedMessageListener
- Parameters:
state_id
- id of the partial state requestedistream
- the InputStream- See Also:
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