javax.swing
public class SpinnerNumberModel extends AbstractSpinnerModel implements Serializable
JSpinner
component.listenerList
Constructor and Description |
---|
SpinnerNumberModel()
Creates a
SpinnerNumberModel with initial value 0, step 1,
and no maximum nor minimum. |
SpinnerNumberModel(double value,
double minimum,
double maximum,
double stepSize)
Creates a
SpinnerNumberModel with double precision. |
SpinnerNumberModel(int value,
int minimum,
int maximum,
int stepSize)
Creates a
SpinnerNumberModel with integer precision. |
SpinnerNumberModel(Number value,
Comparable minimum,
Comparable maximum,
Number stepSize)
Creates a
SpinnerNumberModel with the given attributes. |
Modifier and Type | Method and Description |
---|---|
Comparable |
getMaximum()
Returns the maximum value, or
null if there is no maximum. |
Comparable |
getMinimum()
Returns the minimum value, or
null if there is no minimum. |
Object |
getNextValue()
Returns the next value, or
null if adding the step size to
the current value results in a value greater than the maximum value. |
Number |
getNumber()
Returns the current value.
|
Object |
getPreviousValue()
Returns the previous value, or
null if subtracting the
step size from the current value results in a value less than the minimum
value. |
Number |
getStepSize()
Returns the step size.
|
Object |
getValue()
Returns the current value, which for this class is always an instance of
Number . |
void |
setMaximum(Comparable newMaximum)
Sets the maximum value and, if the new value is different to the old
value, sends a
ChangeEvent to all registered listeners. |
void |
setMinimum(Comparable newMinimum)
Sets the minimum value and, if the new value is different to the old
value, sends a
ChangeEvent to all registered listeners. |
void |
setStepSize(Number newStepSize)
Sets the step size and, if the new step size is different to the old
step size, sends a
ChangeEvent to all registered listeners. |
void |
setValue(Object value)
Sets the current value and, if the new value is different to the old
value, sends a
ChangeEvent to all registered listeners. |
addChangeListener, fireStateChanged, getChangeListeners, getListeners, removeChangeListener
public SpinnerNumberModel()
SpinnerNumberModel
with initial value 0, step 1,
and no maximum nor minimum.public SpinnerNumberModel(double value, double minimum, double maximum, double stepSize)
SpinnerNumberModel
with double precision.value
- the initial valueminimum
- the minimum valuemaximum
- the maximum valuestepSize
- the step sizeIllegalArgumentException
- if minimum <= value <= maximum does
not hold.public SpinnerNumberModel(int value, int minimum, int maximum, int stepSize)
SpinnerNumberModel
with integer precision.value
- the initial valueminimum
- the minimum valuemaximum
- the maximum valuestepSize
- the step sizeIllegalArgumentException
- if minimum <= value <= maximum does
not hold.public SpinnerNumberModel(Number value, Comparable minimum, Comparable maximum, Number stepSize)
SpinnerNumberModel
with the given attributes. The
caller should ensure that both minimum
and
maximum
are serializable.value
- the initial value (null
not permitted).minimum
- the minimum value (null
permitted).maximum
- the maximum value (null
permitted).stepSize
- the step size (null
not permitted).IllegalArgumentException
- if minimum <= value <= maximum
does not holdIllegalArgumentException
- if value
is
null
.IllegalArgumentException
- if stepSize
is
null
.public void setValue(Object value)
ChangeEvent
to all registered listeners.setValue
in interface SpinnerModel
value
- the new value (null
not permitted, must be an
instance of Number
).IllegalArgumentException
- if value
is not an instance
of Number
.public Object getValue()
Number
.getValue
in interface SpinnerModel
getNumber()
public Object getNextValue()
null
if adding the step size to
the current value results in a value greater than the maximum value.
The current value is not changed.getNextValue
in interface SpinnerModel
null
if the current value is the
maximum value represented by this model.public Object getPreviousValue()
null
if subtracting the
step size from the current value results in a value less than the minimum
value. The current value is not changed.getPreviousValue
in interface SpinnerModel
null
if the current value
is the minimum value represented by this model.public Comparable getMinimum()
null
if there is no minimum.setMinimum(Comparable)
public void setMinimum(Comparable newMinimum)
ChangeEvent
to all registered listeners. A
null
value is interpreted as "no minimum value". No check
is made to ensure that the new minimum is less than or equal to the
current value, the caller is responsible for ensuring that this
relationship holds. In addition, the caller should ensure that
newMinimum
is Serializable
.newMinimum
- the new minimum value (null
permitted).getMinimum()
public Comparable getMaximum()
null
if there is no maximum.getMinimum()
,
setMaximum(Comparable)
public void setMaximum(Comparable newMaximum)
ChangeEvent
to all registered listeners. A
null
value is interpreted as "no maximum value". No check
is made to ensure that the new maximum is greater than or equal to the
current value, the caller is responsible for ensuring that this
relationship holds. In addition, the caller should ensure that
newMaximum
is Serializable
.newMaximum
- the new maximum (null
permitted).getMaximum()
public Number getStepSize()
null
).public void setStepSize(Number newStepSize)
ChangeEvent
to all registered listeners.newStepSize
- the new step size (null
not permitted).IllegalArgumentException
- if newStepSize
is
null
.