de.uka.ipd.consensus.impl
Class TypeInstanceImpl

java.lang.Object
  de.uka.ipd.consensus.impl.TypeInstanceImpl

All Implemented Interfaces:

Comparable, Rateable, Serializable, TypeInstance

public class TypeInstanceImpl

extends Object

implements TypeInstance

TODO

Version:

2006-06-14

Author:

Thomas Much

See Also:

Serialized Form

Constructor Summary

protected

TypeInstanceImpl(Topic instance, Topic type, Association assoc)

Method Summary

Rating	addRating(User rater, double value) Adds a rating for the given user to this element.
int	compareTo(Object other)
boolean	equals(Object other)
double	getAverageRatingValue() Returns the average value (the arithmetic mean) of all current ratings for this element.
String	getId() Returns the id of the element that is unique within the ontology.
Topic	getInstance() Returns the instance topic of a type-instance-relationship between two topics.
Rating	getRating(User rater) Returns the rating of the given user for this element.
Collection	getRatings() Returns a collection of all current Rating objects (from different users) for this element.
int	getRatingsCount() Returns the number of ratings for this element.
Topic	getType() Returns the type topic of a type-instance-relationship between two topics.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TypeInstanceImpl

protected TypeInstanceImpl(Topic instance,
                           Topic type,
                           Association assoc)

Method Detail

getType

public Topic getType()

Description copied from interface: TypeInstance

Returns the type topic of a type-instance-relationship between two topics.

Specified by:

getType in interface TypeInstance

Returns:

the type topic, never null

getInstance

public Topic getInstance()

Description copied from interface: TypeInstance

Returns the instance topic of a type-instance-relationship between two topics.

Specified by:

getInstance in interface TypeInstance

Returns:

the instance topic, never null

getId

public String getId()

Description copied from interface: Rateable

Returns the id of the element that is unique within the ontology. This is used to distinguish concepts and users.

Specified by:

getId in interface Rateable

Returns:

the id (never empty, never null)

addRating

public Rating addRating(User rater,
                        double value)
                 throws RatingManagerException,
                        DynamicRightsManagerException

Description copied from interface: Rateable

Adds a rating for the given user to this element. If the user has rated the element already, only the rating's value is changed. Otherwise, this method creates and adds a new rating using suitable RatingManager methods.

Specified by:

addRating in interface Rateable

Parameters:

rater - the user who wants to add or change the rating

value - the new value

Returns:

the newly created or the existing but changed rating

Throws:

DynamicRightsManagerException - if the user is not allowed to rate this element

RatingManagerException - if the rating could not be created/changed

See Also:

RatingManager, DynamicRightsManager.mayAddRating(Rating, Rateable)

getRatings

public Collection getRatings()

Description copied from interface: Rateable

Returns a collection of all current Rating objects (from different users) for this element. This method exists just for convenience and delegates to one of the getRatings() methods of RatingManager.

Specified by:

getRatings in interface Rateable

Returns:

a possibly empty collection, never null

See Also:

Rating, RatingManager

getRatingsCount

public int getRatingsCount()

Description copied from interface: Rateable

Returns the number of ratings for this element. Each user can have only one current rating for each element, i.e. historical ratings do not count.

Specified by:

getRatingsCount in interface Rateable

Returns:

the number of ratings for this element.

getRating

public Rating getRating(User rater)

Description copied from interface: Rateable

Returns the rating of the given user for this element. This method exists just for convenience and delegates to one of the getRatings() methods of RatingManager.

Specified by:

getRating in interface Rateable

Parameters:

rater - the user who's rating shall be returned

Returns:

the rating of the user or null if the user hasn't rated this element yet

See Also:

RatingManager

getAverageRatingValue

public double getAverageRatingValue()

Description copied from interface: Rateable

Returns the average value (the arithmetic mean) of all current ratings for this element.

Specified by:

getAverageRatingValue in interface Rateable

Returns:

the arithmetic mean of all ratings for this element

equals

public boolean equals(Object other)

hashCode

public int hashCode()

compareTo

public int compareTo(Object other)

Specified by:

compareTo in interface Comparable

toString

public String toString()