de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord > Class Reference

Inherits TreeSet< T >.

List of all members.

Public Member Functions
boolean	add (T e)
boolean	contains (Object o)
Float	nextPrimaryWeight ()
boolean	addAll (Collection<?extends T > c)
Static Public Attributes
static final float	STEP_TO_NEXT_PRIMARY_WEIGHT = 10f
Static Protected Member Functions
static float	random2Decimals ()

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Detailed Description

This extension of a TreeSet ensures that records with empty primary-weight are initialized to be added at the end.

Technically it automatically sets the primary-weight of a record if null.

Author:

jurke

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Member Function Documentation

boolean de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.add

(

T

e

)

Adds the record to this set. If no primary weight is specified, it will be added to the end.

boolean de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.addAll

(

Collection<?extends T >

c

)

boolean de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.contains

(

Object

o

)

Note: A node without primary-weight cannot be contained

Float de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.nextPrimaryWeight

(

)

Returns:

the next primary-weight to append a child at the end

static float de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.random2Decimals

(

)

[static, protected]

This method is used to increase the possibility to have different primary-weight values for every peer, even on concurrent creation.

This is useful because if comparing per secondary-weight (the RIDs) only, it's more effort to insert an element in between.

Returns:

a random float with two decimal places

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Member Data Documentation

final float de.fu_berlin.inf.dpp.whiteboard.sxe.util.NodeSet< T extends NodeRecord >.STEP_TO_NEXT_PRIMARY_WEIGHT = 10f [static]

Steps between default primary-weights