org.zkoss.zul.ext
Interface Paginal

All Superinterfaces:

Pageable

All Known Implementing Classes:

Paging

public interface Paginal
extends Pageable

Represents a component that is used to control how to display other components in multiple pages. In other words, it represents a paging controller.

It is used to provide an abstract contract between controller and controllee. For example, Paging is a paging controller while Grid is a paging controllee. In other words, Grid (contains long content) can be controlled by Paging.

The paging controller must implement this interface, while the paging controllee shall access only this interface (rather than Paging or so).

Note: If a component supports multiple pages but it cannot be controlled by a paging controller, it shall implement Pageable instead. Example, Treechildren is Pageable but not controllable by Paginal.

• Paginated: a multi-page component whose pagination is controlled by an external page controlle (Paginal).
• Paginal: the paging controller used to control the pagination of Paginated.
• Pageable: a multi-page component that handles pagination by itself.

Author:

tomyeh

See Also:

Paginated

Method Summary

boolean	addEventListener(java.lang.String evtnm, EventListener<? extends Event> listener) Adds an event listener to specified event for this component.
int	getPageIncrement() Returns the number of page anchors shall appear at the client.
int	getTotalSize() Returns the total number of items.
boolean	isDetailed() Returns whether to show the detailed info, such as getTotalSize().
boolean	removeEventListener(java.lang.String evtnm, EventListener<? extends Event> listener) Removes an event listener.
void	setDetailed(boolean detailed) Sets whether to show the detailed info, such as getTotalSize().
void	setPageIncrement(int pginc) Sets the number of page anchors shall appear at the client.
void	setTotalSize(int size) Sets the total number of items.

Methods inherited from interface org.zkoss.zul.ext.Pageable

getActivePage, getPageCount, getPageSize, setActivePage, setPageSize

Method Detail

getTotalSize

int getTotalSize()

Returns the total number of items.

setTotalSize

void setTotalSize(int size)
                  throws WrongValueException

Sets the total number of items.

Throws:

WrongValueException

getPageIncrement

int getPageIncrement()

Returns the number of page anchors shall appear at the client.

Default: 10.

setPageIncrement

void setPageIncrement(int pginc)
                      throws WrongValueException

Sets the number of page anchors shall appear at the client.

Throws:

WrongValueException

isDetailed

boolean isDetailed()

Returns whether to show the detailed info, such as getTotalSize().

setDetailed

void setDetailed(boolean detailed)

Sets whether to show the detailed info, such as getTotalSize().

addEventListener

boolean addEventListener(java.lang.String evtnm,
                         EventListener<? extends Event> listener)

Adds an event listener to specified event for this component. The second registration is ignored and false is returned.

The onPaging event is sent with an instance of PagingEvent to notify which page is selected.

Parameters:

evtnm - what event to listen (never null)

Returns:

whether the listener is added; false if it was added before

See Also:

PagingEvent

removeEventListener

boolean removeEventListener(java.lang.String evtnm,
                            EventListener<? extends Event> listener)

Removes an event listener.

Returns:

whether the listener is removed; false if it was never added.