Package org.eclipse.team.ui.history

Class ElementLocalHistoryPageSource

java.lang.Object

org.eclipse.team.ui.history.HistoryPageSource

org.eclipse.team.ui.history.ElementLocalHistoryPageSource

All Implemented Interfaces:

IHistoryPageSource

public abstract class ElementLocalHistoryPageSource
extends HistoryPageSource

A history page source that can create history pages for a sub-element of a file.

Since:

3.3

Constructor Summary

Constructors

Constructor	Description
ElementLocalHistoryPageSource()	Create an instance of the page source.

Method Summary

Modifier and Type	Method	Description
final boolean	canShowHistoryFor(Object object)	Returns true if this history page source can show a history for the given object, false if it cannot
final Page	createPage(Object object)	Called by the history view to create the page for this IFileHistoryProvider.
protected abstract IFile	getFile(Object element)	Return the file that contains the given element of null if this page source can not show history for the given element.
static ITypedElement	getPreviousEdition(IFile file, Object element)	Return the previous edition from the local history of the given element located in the given file.
final IFile	internalGetFile(Object element)	Return the file that contains the given element of null if this page source can not show history for the given element.

Methods inherited from class org.eclipse.team.ui.history.HistoryPageSource

getHistoryPageSource

Methods inherited from class java.lang.Object

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

Constructor Details

ElementLocalHistoryPageSource

public ElementLocalHistoryPageSource()

Create an instance of the page source.

Method Details

getPreviousEdition

public static ITypedElement getPreviousEdition(IFile file,
 Object element)
                                        throws TeamException

Return the previous edition from the local history of the given element located in the given file. A null is returned if a previous edition could not be found.

Parameters:

file - the file containing the element

element - the element

Returns:

the previous edition of the element from the local history or null

Throws:

TeamException - if an error occurs

canShowHistoryFor

public final boolean canShowHistoryFor(Object object)

Description copied from interface: IHistoryPageSource

Returns true if this history page source can show a history for the given object, false if it cannot

Parameters:

object - the object that is to have history shown

Returns:

boolean

createPage

public final Page createPage(Object object)

Description copied from interface: IHistoryPageSource

Called by the history view to create the page for this IFileHistoryProvider. The page must implement IHistoryPage.

Parameters:

object - the object whose history is to be shown

Returns:

a Page that implements IHistoryPage (should return either an IPage, IPageBookViewPage or an IHistoryPage

See Also:

• IHistoryPage

getFile

protected abstract IFile getFile(Object element)

Return the file that contains the given element of null if this page source can not show history for the given element.

Parameters:

element - the element

Returns:

the file that contains the given element of null

internalGetFile

public final IFile internalGetFile(Object element)

Return the file that contains the given element of null if this page source can not show history for the given element.

Parameters:

element - the element

Returns:

the file that contains the given element of null

Restriction:

This method is not intended to be referenced by clients.