javax.swing

## Class AbstractSpinnerModel

- java.lang.Object
- - javax.swing.AbstractSpinnerModel

- All Implemented Interfaces:
    Serializable, SpinnerModel
  Direct Known Subclasses:
    SpinnerDateModel, SpinnerListModel, SpinnerNumberModel

      public abstract class AbstractSpinnerModel
      extends Object
      implements SpinnerModel, Serializable

  This class provides the ChangeListener part of the SpinnerModel interface that should be suitable for most concrete SpinnerModel implementations. Subclasses must provide an implementation of the `setValue`, `getValue`, `getNextValue` and `getPreviousValue` methods.
  Since:
    1.4
  See Also:
    `JSpinner`, `SpinnerModel`, `SpinnerListModel`, `SpinnerNumberModel`, `SpinnerDateModel`

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected EventListenerList` | `listenerList` The list of ChangeListeners for this model.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractSpinnerModel()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addChangeListener(ChangeListener l)` Adds a ChangeListener to the model's listener list.
    `protected void` | `fireStateChanged()` Run each ChangeListeners stateChanged() method.
    `ChangeListener[]` | `getChangeListeners()` Returns an array of all the `ChangeListener`s added to this AbstractSpinnerModel with addChangeListener().
    `<T extends EventListener> T[]` | `getListeners(Class<T> listenerType)` Return an array of all the listeners of the given type that were added to this model.
    `void` | `removeChangeListener(ChangeListener l)` Removes a ChangeListener from the model's listener list.

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface javax.swing.SpinnerModel

      `getNextValue, getPreviousValue, getValue, setValue`

- - ### Field Detail

    - #### listenerList

          protected EventListenerList listenerList

      The list of ChangeListeners for this model. Subclasses may store their own listeners here.

  - ### Constructor Detail

    - #### AbstractSpinnerModel

          public AbstractSpinnerModel()

  - ### Method Detail

    - #### addChangeListener

          public void addChangeListener(ChangeListener l)

      Adds a ChangeListener to the model's listener list. The ChangeListeners must be notified when the models value changes.
      Specified by:
        `addChangeListener` in interface `SpinnerModel`
      Parameters:
        `l` - the ChangeListener to add
      See Also:
        `removeChangeListener(javax.swing.event.ChangeListener)`, `SpinnerModel.addChangeListener(javax.swing.event.ChangeListener)`

    - #### removeChangeListener

          public void removeChangeListener(ChangeListener l)

      Removes a ChangeListener from the model's listener list.
      Specified by:
        `removeChangeListener` in interface `SpinnerModel`
      Parameters:
        `l` - the ChangeListener to remove
      See Also:
        `addChangeListener(javax.swing.event.ChangeListener)`, `SpinnerModel.removeChangeListener(javax.swing.event.ChangeListener)`

    - #### getChangeListeners

          public ChangeListener[] getChangeListeners()

      Returns an array of all the `ChangeListener`s added to this AbstractSpinnerModel with addChangeListener().
      Returns:
        all of the `ChangeListener`s added or an empty array if no listeners have been added
      Since:
        1.4

    - #### fireStateChanged

          protected void fireStateChanged()

      Run each ChangeListeners stateChanged() method.
      See Also:
        `SpinnerModel.setValue(java.lang.Object)`, `EventListenerList`

    - #### getListeners

          public <T extends EventListener> T[] getListeners(Class<T> listenerType)

      Return an array of all the listeners of the given type that were added to this model. For example to find all of the ChangeListeners added to this model:

           myAbstractSpinnerModel.getListeners(ChangeListener.class);

      Parameters:
        `listenerType` - the type of listeners to return, e.g. ChangeListener.class
      Returns:
        all of the objects receiving listenerType notifications from this model

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