Constructor Detail

• ItemContents

  public ItemContents()

  Class Constructor.

Method Detail

• addItemRelation

  public void addItemRelation​(java.lang.String relationName,
                              Item item)

  Adds the given item to the set of relations. Whenever an item is added to a relation, it should add the name and the Item reference to this set of name/item mappings. This allows an item to find out the set of all relations that it is contained in.

  Parameters:

  relationName - the name of the relation

  item - the item reference in the relation

• removeItemRelation

  public void removeItemRelation​(java.lang.String relationName)

  Removes the relation/item mapping from this ItemContents.

  Parameters:

  relationName - the name of the relation/item to remove

• showRelations

  public void showRelations()

• getItemRelation

  public Item getItemRelation​(java.lang.String relationName)

  Given the name of a relation, returns the item the shares the same ItemContents.

  Parameters:

  relationName - the name of the relation of interest

  Returns:

  the item associated with this ItemContents in the named relation, or null if it does not exist

• getFeatures

  public FeatureSet getFeatures()

  Returns the feature set for this item contents.

  Returns:

  the FeatureSet for this contents