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## org.apache.commons.math.genetics
Class AbstractListChromosome<T>

    java.lang.Object
      org.apache.commons.math.genetics.Chromosome
          org.apache.commons.math.genetics.AbstractListChromosome<T>

Type Parameters:
  `T` - type of the representation list

All Implemented Interfaces:
  Comparable<Chromosome>, Fitness

Direct Known Subclasses:
  BinaryChromosome, RandomKey

    public abstract class AbstractListChromosome<T>

extends Chromosome

Chromosome represented by an immutable list of a fixed length.

Since:
  2.0
Version:
  $Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $

Constructor Summary
`AbstractListChromosome(List<T> representation)` Constructor.
`AbstractListChromosome(T[] representation)` Constructor.

Method Summary
`protected abstract void` | `checkValidity(List<T> chromosomeRepresentation)` Asserts that `representation` can represent a valid chromosome.
`int` | `getLength()` Returns the length of the chromosome.
`protected List<T>` | `getRepresentation()` Returns the (immutable) inner representation of the chromosome.
`abstract AbstractListChromosome<T>` | `newFixedLengthChromosome(List<T> chromosomeRepresentation)` Creates a new instance of the same class as `this` is, with a given `arrayRepresentation`.
`String` | `toString()`

Methods inherited from class org.apache.commons.math.genetics.Chromosome
`compareTo, findSameChromosome, getFitness, isSame, searchForFitnessUpdate`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.apache.commons.math.genetics.Fitness
`fitness`

Constructor Detail

### AbstractListChromosome

    public AbstractListChromosome(List<T> representation)

  Constructor.

  Parameters:
    `representation` - inner representation of the chromosome

### AbstractListChromosome

    public AbstractListChromosome(T[] representation)

  Constructor.

  Parameters:
    `representation` - inner representation of the chromosome

Method Detail

### checkValidity

    protected abstract void checkValidity(List<T> chromosomeRepresentation)
                                   throws InvalidRepresentationException

  Asserts that `representation` can represent a valid chromosome.

  Parameters:
    `chromosomeRepresentation` - representation of the chromosome
  Throws:
    `InvalidRepresentationException` - iff the `representation` can not represent a valid chromosome

### getRepresentation

    protected List<T> getRepresentation()

  Returns the (immutable) inner representation of the chromosome.

  Returns:
    the representation of the chromosome

### getLength

    public int getLength()

  Returns the length of the chromosome.

  Returns:
    the length of the chromosome

### newFixedLengthChromosome

    public abstract AbstractListChromosome<T> newFixedLengthChromosome(List<T> chromosomeRepresentation)

  Creates a new instance of the same class as `this` is, with a given `arrayRepresentation`. This is needed in crossover and mutation operators, where we need a new instance of the same class, but with different array representation. Usually, this method just calls a constructor of the class.

  Parameters:
    `chromosomeRepresentation` - the inner array representation of the new chromosome.
  Returns:
    new instance extended from FixedLengthChromosome with the given arrayRepresentation

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

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