org.esa.beam.framework.ui.assistant
Interface AssistantPage

All Known Implementing Classes:

AbstractAssistantPage, AbstractLayerSourceAssistantPage, CollectionLayerAssistantPage, SelectLayerSourceAssistantPage

public interface AssistantPage

An AssistantPage is part of a sequence of pages.
It is used by an AssistantPane to assists the user to accomplish a specific task by stepping through the pages.

Method Summary

boolean	canFinish() Determines if the page can finish the current assitant or not.
boolean	canHelp() Determines if the page can show help information.
AssistantPageContext	getContext() Gets the current context for this page.
AssistantPage	getNextPage() Called only if validatePage() and hasNextPage() return true.
Component	getPageComponent() Gets the component of the page.
String	getPageTitle() Gets the title of the page.
boolean	hasNextPage()
void	performCancel() Cancels the current execution of the assitant.
boolean	performFinish() Ccalled only if validatePage() and canFinish() return true.
void	performHelp() Only called if @link #canHelp ()} returns true.
void	setContext(AssistantPageContext pageContext) Sets the current context for this page.
boolean	validatePage() Called from AssistantPageContext.updateState() in order to validate user inputs.

Method Detail

getPageTitle

String getPageTitle()

Gets the title of the page.

Returns:

The page title.

getPageComponent

Component getPageComponent()

Gets the component of the page.

Returns:

The page component.

hasNextPage

boolean hasNextPage()

Returns:

true, if a next page is available

getNextPage

AssistantPage getNextPage()

Called only if validatePage() and hasNextPage() return true.

Returns:

the next page, or null if no next page exists or the page could not be created.

validatePage

boolean validatePage()

Called from AssistantPageContext.updateState() in order to validate user inputs.

Returns:

true, if the current page is valid

canFinish

boolean canFinish()

Determines if the page can finish the current assitant or not.

Returns:

true if the page can perform finish, otherwise false

performFinish

boolean performFinish()

Ccalled only if validatePage() and canFinish() return true.

Returns:

true if finishing was successful, otherwise false.

performCancel

void performCancel()

Cancels the current execution of the assitant. Implementors shall release allocated resources.

canHelp

boolean canHelp()

Determines if the page can show help information.

Returns:

true if the page can show help information, otherwise false

performHelp

void performHelp()

Only called if @link #canHelp ()} returns true.

setContext

void setContext(AssistantPageContext pageContext)

Sets the current context for this page.

Parameters:

pageContext - The context of the page.

getContext

AssistantPageContext getContext()

Gets the current context for this page.

Returns:

The context of the page.