org.apache.storm.starter.tools

Class Rankings

java.lang.Object

org.apache.storm.starter.tools.Rankings

All Implemented Interfaces:

Serializable

public class Rankings
extends Object
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Rankings()
Rankings(int topN)
Rankings(Rankings other) Copy constructor.

Method Summary

Modifier and Type	Method and Description
Rankings	copy() Creates a (defensive) copy of itself.
List<Rankable>	getRankings() The returned defensive copy is only “somewhat” defensive.
int	maxSize()
void	pruneZeroCounts() Removes ranking entries that have a count of zero.
int	size()
String	toString()
void	updateWith(Rankable r)
void	updateWith(Rankings other)

Methods inherited from class java.lang.Object

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

Constructor Detail

Rankings

public Rankings()

Rankings

public Rankings(int topN)

Rankings

public Rankings(Rankings other)

Copy constructor.

Parameters:

other -

Method Detail

maxSize

public int maxSize()

Returns:

the maximum possible number (size) of ranked objects this instance can hold

size

public int size()

Returns:

the number (size) of ranked objects this instance is currently holding

getRankings

public List<Rankable> getRankings()

The returned defensive copy is only “somewhat” defensive. We do, for instance, return a defensive copy of the enclosing List instance, and we do try to defensively copy any contained Rankable objects, too. However, the contract of Rankable.copy() does not guarantee that any Object’s embedded within a Rankable will be defensively copied, too.

Returns:

a somewhat defensive copy of ranked items

updateWith

public void updateWith(Rankings other)

updateWith

public void updateWith(Rankable r)

pruneZeroCounts

public void pruneZeroCounts()

Removes ranking entries that have a count of zero.

toString

public String toString()

Overrides:

toString in class Object

copy

public Rankings copy()

Creates a (defensive) copy of itself.