org.moeaframework.analysis.collector
Class Accumulator

java.lang.Object
  org.moeaframework.analysis.collector.Accumulator

All Implemented Interfaces:

Serializable

public class Accumulator
extends Object
implements Serializable

An accumulator stores collected data from a single run of an algorithm.

See Also:

Serialized Form

Constructor Summary

Accumulator()
Constructs an empty accumulator.

Method Summary

void	add(String key, Serializable value) Adds the data to the sequence of observations with the specified key.
Serializable	get(String key, int index) Returns the value at the specified index for the specified key.
Set<String>	keySet() Returns the set of keys stored in this accumulator.
int	size(String key) Returns the number of values stored for the specified key.

Methods inherited from class java.lang.Object

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

Constructor Detail

Accumulator

public Accumulator()

Constructs an empty accumulator.

Method Detail

add

public void add(String key,
                Serializable value)

Adds the data to the sequence of observations with the specified key.

Parameters:

key - the key of this observation

value - the value of this observation

keySet

public Set<String> keySet()

Returns the set of keys stored in this accumulator.

Returns:

the set of keys stored in this accumulator

get

public Serializable get(String key,
                        int index)

Returns the value at the specified index for the specified key.

Parameters:

key - the key

index - the index

Returns:

the value at the specified index for the specified key

Throws:

IllegalArgumentException - if the key was not contained in this accumulator

IndexOutOfBoundsException - if the index is out of range (index < 0 || index >= size(key))

size

public int size(String key)

Returns the number of values stored for the specified key.

Parameters:

key - the key

Returns:

the number of values stored for the specified key

Throws:

IllegalArgumentException - if the key was not contained in this accumulator