javax.swing.SpinnerModel

public interface javax.swing

SpinnerModel

Java SE 6

Implemented by: AbstractSpinnerModel

A model for a potentially unbounded sequence of object values. This model is similar to ListModel however there are some important differences:

The number of sequence elements isn't neccessarily bounded.
The model doesn't support indexed random access to sequence elements. Only three sequence values are accessible at a time: current, next and previous.
The current sequence element, can be set.

A SpinnerModel has three properties, only the first is read/write.

value: The current element of the sequence.
nextValue: The following element or null if value is the last element of the sequence.
previousValue: The preceeding element or null if value is the first element of the sequence.

When the the value property changes, ChangeListeners are notified. SpinnerModel may choose to notify the ChangeListeners under other circumstances.

version	1.7 11/17/05
since	1.4
See also	javax.swing.JSpinner, javax.swing.AbstractSpinnerModel, javax.swing.SpinnerListModel, javax.swing.SpinnerNumberModel, javax.swing.SpinnerDateModel

Methods

public void

addChangeListener(ChangeListener l) Details

Adds a ChangeListener to the model's listener list. The ChangeListeners must be notified when models value changes.

l	the ChangeListener to add
See also	removeChangeListener

public void

removeChangeListener(ChangeListener l) Details

Removes a ChangeListener from the model's listener list.

l	the ChangeListener to remove
See also	addChangeListener

Properties

public Object

getNextValue() Details

Return the object in the sequence that comes after the object returned by getValue(). If the end of the sequence has been reached then return null. Calling this method does not effect value.

return	the next legal value or null if one doesn't exist
See also	getValue, getPreviousValue

public Object

getPreviousValue() Details

Return the object in the sequence that comes before the object returned by getValue(). If the end of the sequence has been reached then return null. Calling this method does not effect value.

return	the previous legal value or null if one doesn't exist
See also	getValue, getNextValue

public void

setValue(Object value) Details

Changes current value of the model, typically this value is displayed by the editor part of a JSpinner. If the SpinnerModel implementation doesn't support the specified value then an IllegalArgumentException is thrown. For example a SpinnerModel for numbers might only support values that are integer multiples of ten. In that case, model.setValue(new Number(11)) would throw an exception.

Throws	IllegalArgumentException: if `value` isn't allowed
See also	getValue

public Object

getValue() Details

The current element of the sequence. This element is usually displayed by the editor part of a JSpinner.

return	the current spinner value.
See also	setValue

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Java SE 6

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