Package com.macrofocus.selection.implementation

Class NullSelection<E>

java.lang.Object

com.macrofocus.selection.implementation.AbstractSelection<E>

com.macrofocus.selection.implementation.AbstractMutableSelection<E>

com.macrofocus.selection.implementation.NullSelection<E>

Type Parameters:

E - the type of elements that can be selected

All Implemented Interfaces:

MutableSelection<E>, Selection<E>, java.lang.Iterable<E>

public final class NullSelection<E>
extends AbstractMutableSelection<E>
implements MutableSelection<E>

Data model for multiple selection supporting null value to be selected.

Constructor Summary

Constructors

Constructor	Description
NullSelection()
NullSelection(E... selected)

Method Summary

Modifier and Type	Method	Description
boolean	clearSelection()	Change the selection to the empty set.
int	getSelectedCount()	Returns the number of elements currently selected.
java.util.Set<E>	getSelectedSet()	Returns the selected elements as a Set.
boolean	isActive()	Indicates whether at least one element is currently selected.
boolean	isSelected(E element)	Indicates whether a given element is selected or not.
java.util.Iterator<E>	iterator()
boolean	setSelected(boolean selected, E... elements)	Set the selection state.
void	setSelected(E e)
void	setSelected(E element, boolean selected)
boolean	setSelected(java.lang.Iterable<E> elements, boolean selected)	Set the selection state.
void	setSelectedElements(E... elements)
void	setSelectedIterable(java.lang.Iterable<E> elements)
java.lang.String	toString()

Methods inherited from class com.macrofocus.selection.implementation.AbstractMutableSelection

setEnabled

Methods inherited from class com.macrofocus.selection.implementation.AbstractSelection

addSelectionListener, addWeakSelectionListener, isEnabled, notifySelectedChanged, removeSelectionListener, removeSelectionListeners

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface com.macrofocus.selection.MutableSelection

setEnabled

Methods inherited from interface com.macrofocus.selection.Selection

addSelectionListener, addWeakSelectionListener, isEnabled, removeSelectionListener, removeSelectionListeners

Constructor Detail

NullSelection

public NullSelection()

NullSelection

public NullSelection(E... selected)

Method Detail

clearSelection

public boolean clearSelection()

Description copied from interface: MutableSelection

Change the selection to the empty set. If this represents a change to the current selection then notify each listener.

Specified by:

clearSelection in interface MutableSelection<E>

Returns:

true, if the set of selected elements was changed.

isActive

public boolean isActive()

Description copied from interface: Selection

Indicates whether at least one element is currently selected.

Specified by:

isActive in interface Selection<E>

Returns:

true if at least one element is selected, false otherwise.

isSelected

public boolean isSelected(E element)

Description copied from interface: Selection

Indicates whether a given element is selected or not.

Specified by:

isSelected in interface Selection<E>

Parameters:

element - the element to be tested

Returns:

true if the element is selected, false otherwise

setSelected

public void setSelected(E e)

Specified by:

setSelected in interface MutableSelection<E>

setSelected

public void setSelected(E element,
                        boolean selected)

Specified by:

setSelected in interface MutableSelection<E>

setSelected

public boolean setSelected(java.lang.Iterable<E> elements,
                           boolean selected)

Description copied from interface: MutableSelection

Set the selection state.

Specified by:

setSelected in interface MutableSelection<E>

Parameters:

elements - the elements to change

selected - true to have the elements selected, false otherwise

Returns:

true, if the set of selected elements was changed.

setSelected

public boolean setSelected(boolean selected,
                           E... elements)

Description copied from interface: MutableSelection

Set the selection state.

Specified by:

setSelected in interface MutableSelection<E>

Parameters:

selected - true to have the elements selected, false otherwise

elements - the elements to change

Returns:

true, if the set of selected elements was changed.

setSelectedElements

public void setSelectedElements(E... elements)

Specified by:

setSelectedElements in interface MutableSelection<E>

setSelectedIterable

public void setSelectedIterable(java.lang.Iterable<E> elements)

Specified by:

setSelectedIterable in interface MutableSelection<E>

getSelectedCount

public int getSelectedCount()

Description copied from interface: Selection

Returns the number of elements currently selected.

Specified by:

getSelectedCount in interface Selection<E>

Returns:

the number of selected elements.

getSelectedSet

public java.util.Set<E> getSelectedSet()

Description copied from interface: Selection

Returns the selected elements as a Set.

Specified by:

getSelectedSet in interface Selection<E>

Returns:

the Set of selected elements.

iterator

public java.util.Iterator<E> iterator()

Specified by:

iterator in interface java.lang.Iterable<E>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object