java.lang.Object
- io.github.oliviercailloux.j_voting.OldCompletePreferenceImpl

Direct Known Subclasses:

OldLinearPreferenceImpl
```
public class OldCompletePreferenceImpl
extends Object
```
Immutable class. A Preference represents a list of alternatives, sorted by order of preference. Two alternatives can be equally ranked. There cannot be twice the same alternative.

Field Summary

Fields
Modifier and Type Field Description

protected List<Set<Alternative>> preference

Constructor Summary

Constructors
Modifier Constructor Description

protected OldCompletePreferenceImpl(List<Set<Alternative>> preference)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`contains(Alternative alter)`
`static OldCompletePreferenceImpl`	`createCompletePreferenceImpl(List<Set<Alternative>> preference)`	Factory method for CompletePreferenceImpl
`boolean`	`equals(Object o)`
`Alternative`	`getAlternative(Integer position)`
`int`	`getAlternativeRank(Alternative alter)`
`List<Set<Alternative>>`	`getPreferencesNonStrict()`
`int`	`hashCode()`
`boolean`	`hasSameAlternatives(OldCompletePreferenceImpl p)`
`boolean`	`isIncludedIn(OldCompletePreferenceImpl p)`
`boolean`	`isStrict()`
`int`	`size()`
`static int`	`size(List<Set<Alternative>> list)`
`static Set<Alternative>`	`toAlternativeSet(List<Set<Alternative>> preference)`
`OldLinearPreferenceImpl`	`toStrictPreference()`
`String`	`toString()`

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

- Field Detail
  - preference
```
protected List<Set<Alternative>> preference
```
- Constructor Detail
  - OldCompletePreferenceImpl
```
protected OldCompletePreferenceImpl(List<Set<Alternative>> preference)
```
    Parameters:
    
    preferences - not null a list of sets of alternatives. In a set, the alternatives are equally ranked. The sets are sorted by preference in the list. If an alternative is present several times, an IllegalArgumentException is thrown.
- Method Detail
  - getAlternative
```
public Alternative getAlternative(Integer position)
                           throws IndexOutOfBoundsException
```
    Parameters:
    
    position - not null
    
    Returns:
    
    the alternative at the position given in the strict preference
    
    Throws:
    
    IndexOutOfBoundsException
  - getPreferencesNonStrict
```
public List<Set<Alternative>> getPreferencesNonStrict()
```
    Returns:
    
    the preference of alternatives
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - size
```
public int size()
```
    Returns:
    
    the size of the Preference, i.e. the number of alternatives in the Preference
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - contains
```
public boolean contains(Alternative alter)
```
    Parameters:
    
    alter - not null
    
    Returns:
    
    whether the preference contains the alternative given as parameter
  - hasSameAlternatives
```
public boolean hasSameAlternatives(OldCompletePreferenceImpl p)
```
    Parameters:
    
    p - not null
    
    Returns:
    
    whether the preferences are about the same alternatives exactly (not necessarily in the same order).
  - isIncludedIn
```
public boolean isIncludedIn(OldCompletePreferenceImpl p)
```
    Parameters:
    
    p - not null
    
    Returns:
    
    whether the parameter preference contains all the alternatives in the calling preference
  - getAlternativeRank
```
public int getAlternativeRank(Alternative alter)
```
    Parameters:
    
    alter - not null. If the alternative is not in the preference, it throws an IllegalArgumentException.
    
    Returns:
    
    the rank of the alternative given in the Preference.
  - toAlternativeSet
```
public static Set<Alternative> toAlternativeSet(List<Set<Alternative>> preference)
```
    Parameters:
    
    preferences - not null a list of sets of alternatives
    
    Returns:
    
    a set of alternatives containing all the alternatives of the list of set of alternative given. If an alternative appears several times in the list of sets, it appears only once in the new set.
  - size
```
public static int size(List<Set<Alternative>> list)
```
    Parameters:
    
    list - not null
    
    Returns:
    
    the size of a list of alternative sets
  - createCompletePreferenceImpl
```
public static OldCompletePreferenceImpl createCompletePreferenceImpl(List<Set<Alternative>> preference)
```
    Factory method for CompletePreferenceImpl
    
    Parameters:
    
    preference - not null and all alternatives differents
    
    Returns:
    
    a new CompletePreferenceImpl
  - isStrict
```
public boolean isStrict()
```
    Returns:
    
    true if the Preference is Strict (without several alternatives having the same rank)
  - toStrictPreference
```
public OldLinearPreferenceImpl toStrictPreference()
```
    Returns:
    
    the StrictPreference built from the preference if the preference is strict. If the preference is not strict it throws an IllegalArgumentException.

Class OldCompletePreferenceImpl

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

preference

Constructor Detail

OldCompletePreferenceImpl

Method Detail

getAlternative

getPreferencesNonStrict

toString

size

equals

hashCode

contains

hasSameAlternatives

isIncludedIn

getAlternativeRank

toAlternativeSet

size

createCompletePreferenceImpl

isStrict

toStrictPreference