Package model.handler

Interface CollectionHandler<T extends AbstractCollection<E>, E>

Type Parameters:

T - Type of Collection

E - Type of Elements

All Known Implementing Classes:

RoutesHandler

public interface CollectionHandler<T extends AbstractCollection<E>,E>
                

Base interface for handling Collection of Elements. You should implement it in your handler for correct command working.

Since:

1.0

Author:

Zerumi

Method Summary

Modifier and Type	Method	Description
void	addCollectionListener (CollectionUpdateListener<E> listener)	Registers new listener for some collection operations.
void	addElementToCollection (E value)	Provides method for fast adding element in collection.
T	getCollection()	Provides method for get collection.
E	getFirstOrNew()	Provides method for fast getting first element.
Date	getInitDate()	Provides method for get collection initDate.
E	getLastElement()	Provides method for getting last element.
E	getMax (Comparator<E> comparator)	Gets max element by given comparator
E	getMin (Comparator<E> comparator)	Gets min element by given comparator
T	getSorted()	Provides method for getting sorted variant of collection.
void	setCollection (T value)	Provides method for set collection.
default void	sort()	Provides method for fast sorting collection.

Method Details

getCollection

T getCollection()
                                        

Provides method for get collection.

Returns:

Actual collection reference

setCollection

void setCollection
                                            
                                            (T value)
                                        

Provides method for set collection.

Parameters:

value - Collection

addElementToCollection

void addElementToCollection
                                            
                                            (E value)
                                        

Provides method for fast adding element in collection.

Parameters:

value - Element to add

sort

default void sort()
                                        

Provides method for fast sorting collection. You can ignore this method.

getSorted

T getSorted()
                                        

Provides method for getting sorted variant of collection.

Returns:

sorted collection

getFirstOrNew

E getFirstOrNew()
                                        

Provides method for fast getting first element.

Returns:

First element. If collection was empty, creates new Element and returns it.

getInitDate

Date getInitDate()
                                        

Provides method for get collection initDate.

Returns:

Date instance -- Collection created time.

See Also:

• InfoCommand

getLastElement

E getLastElement()
                                        

Provides method for getting last element.

Returns:

Last element. If collection was empty, returns null.

getMin

E getMin
                                            
                                            (Comparator<E> comparator)
                                        

Gets min element by given comparator

Parameters:

comparator - Comparator to compare.

Returns:

Min element or null if collection is empty

getMax

E getMax
                                            
                                            (Comparator<E> comparator)
                                        

Gets max element by given comparator

Parameters:

comparator - Comparator to compare.

Returns:

Max element or null if collection is empty

addCollectionListener

void addCollectionListener
                                            
                                            (CollectionUpdateListener<E> listener)
                                        

Registers new listener for some collection operations.

Parameters:

listener - Listener

Since:

4.0