y.layout.hierarchic
Interface MementoSupport

public interface MementoSupport

This interface is a Cookie for the HierarchicLayouter's memento support.

Field Summary

static byte	LAYERING_PHASE Constant describing the first phase of the HierarchicLayouter algorithm.
static byte	SEQUENCING_PHASE Constant describing the second phase of the HierarchicLayouter algorithm.

Method Summary

Object	createMemento() Creates a memento which can be held by the user, before using the support, a valid memento Object has to be set using the corresponding setter method.
Object	getMemento() Gets the currently active memento Object
boolean	getMementoMode(byte phase) Retrieves the current mode previously set by setMementoMode(byte, boolean) for the given phase of the algorithm.
void	setMemento(Object memento) Sets a previously created memento Object to be used for the next operation
void	setMementoMode(byte phase, boolean useMemento) Sets the mode for each phase of the algorithm.

Field Detail

LAYERING_PHASE

public static final byte LAYERING_PHASE

Constant describing the first phase of the HierarchicLayouter algorithm.

See Also:

Constant Field Values

SEQUENCING_PHASE

public static final byte SEQUENCING_PHASE

Constant describing the second phase of the HierarchicLayouter algorithm.

See Also:

Constant Field Values

Method Detail

createMemento

public Object createMemento()

Creates a memento which can be held by the user, before using the support, a valid memento Object has to be set using the corresponding setter method.

setMemento

public void setMemento(Object memento)

Sets a previously created memento Object to be used for the next operation

getMemento

public Object getMemento()

Gets the currently active memento Object

setMementoMode

public void setMementoMode(byte phase,
                           boolean useMemento)

Sets the mode for each phase of the algorithm. true makes the algorithm use the values stored in the memento from a previous run, whereas false makes the algorithm store the information in the memento after the next run.

getMementoMode

public boolean getMementoMode(byte phase)

Retrieves the current mode previously set by setMementoMode(byte, boolean) for the given phase of the algorithm.