org.granite.client.tide.collection

Class AbstractPagedCollection<E>

java.lang.Object

org.granite.client.tide.collection.AbstractPagedCollection<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, List<E>, TideEventObserver

public abstract class AbstractPagedCollection<E>
extends Object
implements List<E>, TideEventObserver

Author:

William DRAI

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AbstractPagedCollection.PagedCollectionIterator
class	AbstractPagedCollection.PagedCollectionResponder

Field Summary

Fields

Modifier and Type	Field and Description
protected int	count
protected boolean	filterRefresh
protected int	first
protected boolean	fullRefresh
protected boolean	initializing
protected int	last
protected int	max

Constructor Summary

Constructors

Constructor and Description
AbstractPagedCollection()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(E e)
void	add(int index, E element)
boolean	addAll(Collection<? extends E> c)
boolean	addAll(int index, Collection<? extends E> c)
void	clear() Clear collection content
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
protected void	find(int first, int last) Abstract method: trigger a results query for the current filter
protected void	findFault(TideFaultEvent event, int first, int max) Event handler for results fault
protected void	findResult(TideResultEvent<?> event, int first, int max) Event handler for results query
protected abstract void	firePageChange(TideRpcEvent event) Notify listeners of remote page result
boolean	fullRefresh() Force refresh of collection when filter/sort have been changed
E	get(int index) Override of get() with lazy page loading
protected abstract List<E>	getInternalWrappedList()
protected abstract org.granite.tide.data.model.Page<E>	getResult(TideResultEvent<?> event, int first, int max) Build a result object from the result event
protected abstract List<E>	getWrappedList()
void	handleEvent(TideEvent event)
protected void	handleFault(TideFaultEvent event) Event handler for results query fault
protected void	handleResult(org.granite.tide.data.model.Page<E> page, TideResultEvent<?> event, int first, int max) Event handler for results query
int	indexOf(Object o)
protected void	initialize(TideResultEvent<?> event) Initialize collection after first find
boolean	isEmpty()
Iterator<E>	iterator()
int	lastIndexOf(Object o)
ListIterator<E>	listIterator()
ListIterator<E>	listIterator(int index)
boolean	refresh() Refresh collection with new filter/sort parameters
E	remove(int index)
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
E	set(int index, E element)
void	setElementClass(Class<? extends E> elementClass)
void	setMaxResults(int max) Set the page size.
int	size() Get total number of elements
List<E>	subList(int fromIndex, int toIndex)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.List

equals, hashCode, toArray, toArray

Field Detail

initializing

protected boolean initializing

first

protected int first

last

protected int last

max

protected int max

count

protected int count

fullRefresh

protected boolean fullRefresh

filterRefresh

protected boolean filterRefresh

Constructor Detail

AbstractPagedCollection

public AbstractPagedCollection()

Method Detail

size

public int size()

Get total number of elements

Specified by:

size in interface Collection<E>

Specified by:

size in interface List<E>

Returns:

collection total size

setMaxResults

public void setMaxResults(int max)

Set the page size. The collection will store in memory twice this page size, and each server call will return at most the page size.

Parameters:

max - maximum number of requested elements

setElementClass

public void setElementClass(Class<? extends E> elementClass)

handleEvent

public void handleEvent(TideEvent event)

Specified by:

handleEvent in interface TideEventObserver

clear

@PreDestroy
public void clear()

Clear collection content

Specified by:

clear in interface Collection<E>

Specified by:

clear in interface List<E>

find

protected void find(int first,
        int last)

Abstract method: trigger a results query for the current filter

Parameters:

first - : index of first required result

last - : index of last required result

fullRefresh

public boolean fullRefresh()

Force refresh of collection when filter/sort have been changed

Returns:

always false

refresh

public boolean refresh()

Refresh collection with new filter/sort parameters

Returns:

always false

getResult

protected abstract org.granite.tide.data.model.Page<E> getResult(TideResultEvent<?> event,
                                            int first,
                                            int max)

Build a result object from the result event

Parameters:

event - the result event

first - first index requested

max - max elements requested

Returns:

a Page object containing data from the collection resultList : the retrieved data resultCount : the total count of elements (non paged) firstResult : the index of the first retrieved element maxResults : the maximum count of retrieved elements

firePageChange

protected abstract void firePageChange(TideRpcEvent event)

Notify listeners of remote page result

Parameters:

event - the remote event (ResultEvent or FaultEvent)

initialize

protected void initialize(TideResultEvent<?> event)

Initialize collection after first find

Parameters:

event - the result event of the first find

findResult

protected void findResult(TideResultEvent<?> event,
              int first,
              int max)

Event handler for results query

Parameters:

event - the result event

first - first requested index

max - max elements requested

handleResult

protected void handleResult(org.granite.tide.data.model.Page<E> page,
                TideResultEvent<?> event,
                int first,
                int max)

Event handler for results query

Parameters:

page - the result page

event - the result event

first - first requested index

max - max elements requested

findFault

protected void findFault(TideFaultEvent event,
             int first,
             int max)

Event handler for results fault

Parameters:

event - the fault event

first - first requested index

max - max elements requested

handleFault

protected void handleFault(TideFaultEvent event)

Event handler for results query fault

Parameters:

event - the fault event

getInternalWrappedList

protected abstract List<E> getInternalWrappedList()

getWrappedList

protected abstract List<E> getWrappedList()

get

public E get(int index)

Override of get() with lazy page loading

Specified by:

get in interface List<E>

Parameters:

index - index of requested item

Returns:

object at specified index

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

Specified by:

isEmpty in interface List<E>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface List<E>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

Specified by:

containsAll in interface List<E>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<E>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<E>

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface List<E>

listIterator

public ListIterator<E> listIterator()

Specified by:

listIterator in interface List<E>

listIterator

public ListIterator<E> listIterator(int index)

Specified by:

listIterator in interface List<E>

add

public boolean add(E e)

Specified by:

add in interface Collection<E>

Specified by:

add in interface List<E>

add

public void add(int index,
       E element)

Specified by:

add in interface List<E>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<E>

Specified by:

addAll in interface List<E>

addAll

public boolean addAll(int index,
             Collection<? extends E> c)

Specified by:

addAll in interface List<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

Specified by:

remove in interface List<E>

remove

public E remove(int index)

Specified by:

remove in interface List<E>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

Specified by:

removeAll in interface List<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

Specified by:

retainAll in interface List<E>

set

public E set(int index,
    E element)

Specified by:

set in interface List<E>

subList

public List<E> subList(int fromIndex,
              int toIndex)

Specified by:

subList in interface List<E>