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org.jgroups.protocols
Class FRAG2.FragmentationList  

java.lang.Object
  org.jgroups.protocols.FRAG2.FragmentationList

Enclosing class:

FRAG2

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static class FRAG2.FragmentationList

extends java.lang.Object

A fragmentation list keeps a list of fragmentation tables sorted by an Address ( the sender ). This way, if the sender disappears or leaves the group half way sending the content, we can simply remove this members fragmentation table and clean up the memory of the receiver. We do not have to do the same for the sender, since the sender doesn't keep a fragmentation table

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Field Summary
private  java.util.HashMap	frag_tables

 

Constructor Summary
(package private)	FRAG2.FragmentationList()

 

Method Summary
void	add(org.jgroups.Address sender, FRAG2.FragmentationTable table)           Adds a fragmentation table for this particular sender If this sender already has a fragmentation table, an IllegalArgumentException will be thrown.
boolean	containsSender(org.jgroups.Address sender)           returns true if this sender already holds a fragmentation for this sender, false otherwise
FRAG2.FragmentationTable	get(org.jgroups.Address sender)           returns a fragmentation table for this sender returns null if the sender doesn't have a fragmentation table
org.jgroups.Address[]	getSenders()           returns a list of all the senders that have fragmentation tables opened.
boolean	remove(org.jgroups.Address sender)           removes the fragmentation table from the list.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

frag_tables

private final java.util.HashMap frag_tables

Constructor Detail

FRAG2.FragmentationList

FRAG2.FragmentationList()

Method Detail

add

public void add(org.jgroups.Address sender,
                FRAG2.FragmentationTable table)
         throws java.lang.IllegalArgumentException

Adds a fragmentation table for this particular sender If this sender already has a fragmentation table, an IllegalArgumentException will be thrown.

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get

public FRAG2.FragmentationTable get(org.jgroups.Address sender)

returns a fragmentation table for this sender returns null if the sender doesn't have a fragmentation table

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containsSender

public boolean containsSender(org.jgroups.Address sender)

returns true if this sender already holds a fragmentation for this sender, false otherwise

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remove

public boolean remove(org.jgroups.Address sender)

removes the fragmentation table from the list. after this operation, the fragementation list will no longer hold a reference to this sender's fragmentation table

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getSenders

public org.jgroups.Address[] getSenders()

returns a list of all the senders that have fragmentation tables opened.

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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