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java.lang.Object java.util.Observable rice.p2p.commonapi.NodeHandle rice.pastry.NodeHandle
public abstract class NodeHandle
Interface for handles to remote nodes.
Field Summary | |
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static int |
LIVENESS_ALIVE
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static int |
LIVENESS_DEAD
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static int |
LIVENESS_SUSPECTED
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protected PastryNode |
localnode
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protected Logger |
logger
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Fields inherited from class rice.p2p.commonapi.NodeHandle |
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DECLARED_DEAD, DECLARED_LIVE, PROXIMITY_CHANGED |
Constructor Summary | |
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NodeHandle()
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Method Summary | |
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void |
addObserver(java.util.Observer o)
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void |
addObserver(java.util.Observer o,
int priority)
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void |
assertLocalNode()
May be called from handle etc methods to ensure that local node has been set, either on construction or on deserialization/receivemsg. |
void |
bootstrap(Message msg)
Method which is used by Pastry to start the bootstrapping process on the local node using this handle as the bootstrap handle. |
boolean |
checkLiveness()
Method which FORCES a check of liveness of the remote node. |
int |
countObservers()
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void |
deleteObserver(java.util.Observer o)
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void |
deleteObservers()
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abstract boolean |
equals(java.lang.Object obj)
Equality operator for nodehandles. |
Id |
getId()
Returns this node's id. |
abstract int |
getLiveness()
A more detailed version of isAlive(). |
PastryNode |
getLocalNode()
Accessor method. |
abstract Id |
getNodeId()
Gets the nodeId of this Pastry node. |
abstract int |
hashCode()
Hash codes for nodehandles. |
boolean |
isAlive()
Returns the last known liveness information about the Pastry node associated with this handle. |
void |
notifyObservers(java.lang.Object arg)
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abstract boolean |
ping()
Ping the node. |
abstract int |
proximity()
Deprecated. use PastryNode.proximity() or Endpoint.proximity() |
abstract void |
receiveMessage(Message msg)
Deprecated. use PastryNode.send() or Endpoint.send() |
abstract void |
serialize(OutputBuffer buf)
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void |
update(java.lang.Object update)
Method which allows the observers of this socket node handle to be updated. |
Methods inherited from class java.util.Observable |
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clearChanged, hasChanged, notifyObservers, setChanged |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int LIVENESS_ALIVE
public static final int LIVENESS_SUSPECTED
public static final int LIVENESS_DEAD
protected transient PastryNode localnode
protected transient Logger logger
Constructor Detail |
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public NodeHandle()
Method Detail |
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public abstract Id getNodeId()
public Id getId()
NodeHandle
getId
in class NodeHandle
public final boolean isAlive()
isAlive
in class NodeHandle
public abstract int getLiveness()
public boolean checkLiveness()
checkLiveness
in class NodeHandle
public abstract int proximity()
proximity
in class NodeHandle
public abstract boolean ping()
public final PastryNode getLocalNode()
public void assertLocalNode()
public abstract boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
obj
- a nodehandle object
public void bootstrap(Message msg) throws java.io.IOException
msg
- the bootstrap message.
java.io.IOException
public abstract int hashCode()
hashCode
in class java.lang.Object
public abstract void receiveMessage(Message msg)
msg
- public abstract void serialize(OutputBuffer buf) throws java.io.IOException
serialize
in class NodeHandle
java.io.IOException
public void addObserver(java.util.Observer o)
addObserver
in class java.util.Observable
public void addObserver(java.util.Observer o, int priority)
o
- priority
- higher priority observers will be called firstpublic void deleteObserver(java.util.Observer o)
deleteObserver
in class java.util.Observable
public void notifyObservers(java.lang.Object arg)
notifyObservers
in class java.util.Observable
public int countObservers()
countObservers
in class java.util.Observable
public void deleteObservers()
deleteObservers
in class java.util.Observable
public void update(java.lang.Object update)
update
- The update
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