Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Eclipse Platform
Release 3.0

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.eclipse.ui
Interface INavigationLocation

All Known Implementing Classes:

NavigationLocation

public interface INavigationLocation

Represents the context marked for the user in the navigation history. Not intended to be implemented by clients. Clients should subclass NavigationLocation instead.

Since:

2.1

Method Summary

void	dispose() Disposes of this location and frees any allocated resource.
Object	getInput() Returns the input used for this location.
String	getText() Returns the display name for this location.
boolean	mergeInto(INavigationLocation currentLocation) Merge the receiver into currentLocation.
void	releaseState() Release any state kept by this location.
void	restoreLocation() Restore the context saved by this location.
void	restoreState(IMemento memento) Restore the state of this location from the memento
void	saveState(IMemento memento) Persists the state of this location into the memento
void	setInput(Object input) Sets the location's input.
void	update() The message update is sent to the active location before another location becomes active.

Method Detail

dispose

public void dispose()

Disposes of this location and frees any allocated resource.

releaseState

public void releaseState()

Release any state kept by this location. Any relevant state should be saved by the previous call of saveState(IMemento). This object will not be used until restoreState is called again.

saveState

public void saveState(IMemento memento)

Persists the state of this location into the memento

Parameters:

memento - the storage were the state should be saved into.

restoreState

public void restoreState(IMemento memento)

Restore the state of this location from the memento

Parameters:

memento - the storage were the state was saved into.

restoreLocation

public void restoreLocation()

Restore the context saved by this location.

mergeInto

public boolean mergeInto(INavigationLocation currentLocation)

Merge the receiver into currentLocation. Return true if the two locations could be merged otherwise return false.

This message is sent to all locations before being added to the history; given the change to the new location to merge itself into the current location minimizing the number of entries in the navigation history.

Parameters:

currentLocation - where the receiver should be merged into

Returns:

boolean true if the merge was possible

getInput

public Object getInput()

Returns the input used for this location. Returns null if the receiver's state has been released.

Returns:

the input for this location

getText

public String getText()

Returns the display name for this location. This name is used in the navigation history list.

Returns:

the display name

setInput

public void setInput(Object input)

Sets the location's input.

Should not be called by clients.

Parameters:

input - the editor input.

update

public void update()

The message update is sent to the active location before another location becomes active.