Class ChoiceBox<T>
- javafx.scene.Node
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- javafx.scene.Parent
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- javafx.scene.layout.Region
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- javafx.scene.control.Control
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- javafx.scene.control.ChoiceBox<T>
All Implemented Interfaces:
@DefaultProperty(value="items") public class ChoiceBox<T> extends Control
By default, the ChoiceBox has no item selected unless otherwise specified. Although the ChoiceBox will only allow a user to select from the predefined list, it is possible for the developer to specify the selected item to be something other than what is available in the predefined list. This is required for several important use cases.
It means configuration of the ChoiceBox is order independent. You may either specify the items and then the selected item, or you may specify the selected item and then the items. Either way will function correctly.
ChoiceBox item selection is handled by SelectionModel As with ListView and ComboBox, it is possible to modify the SelectionModel that is used, although this is likely to be rarely changed. ChoiceBox supports only a single selection model, hence the default used is a SingleSelectionModel.
import javafx.scene.control.ChoiceBox;
ChoiceBox cb = new ChoiceBox();
cb.getItems().addAll("item1", "item2", "item3");
Since:
JavaFX 2.0
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Property Summary
All MethodsInstance MethodsConcrete Methods Type Property and Description ObjectProperty<StringConverter<T>>converterAllows a way to specify how to represent objects in the items list.ObjectProperty<ObservableList<T>>itemsThe items to display in the choice box.ObjectProperty<SingleSelectionModel<T>>selectionModelThe selection model for the ChoiceBox.ReadOnlyBooleanPropertyshowingIndicates whether the drop down is displaying the list of choices to the user.ObjectProperty<T>valueThe value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model.-
Properties inherited from class javafx.scene.control.Control
contextMenu, skin, tooltip
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Properties inherited from class javafx.scene.layout.Region
background, border, cacheShape, centerShape, height, insets, maxHeight, maxWidth, minHeight, minWidth, opaqueInsets, padding, prefHeight, prefWidth, scaleShape, shape, snapToPixel, width
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Properties inherited from class javafx.scene.Parent
needsLayout
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Properties inherited from class javafx.scene.Node
accessibleHelp, accessibleRoleDescription, accessibleRole, accessibleText, blendMode, boundsInLocal, boundsInParent, cacheHint, cache, clip, cursor, depthTest, disabled, disable, effectiveNodeOrientation, effect, eventDispatcher, focused, focusTraversable, hover, id, inputMethodRequests, layoutBounds, layoutX, layoutY, localToParentTransform, localToSceneTransform, managed, mouseTransparent, nodeOrientation, onContextMenuRequested, onDragDetected, onDragDone, onDragDropped, onDragEntered, onDragExited, onDragOver, onInputMethodTextChanged, onKeyPressed, onKeyReleased, onKeyTyped, onMouseClicked, onMouseDragEntered, onMouseDragExited, onMouseDragged, onMouseDragOver, onMouseDragReleased, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onRotate, onRotationFinished, onRotationStarted, onScrollFinished, onScroll, onScrollStarted, onSwipeDown, onSwipeLeft, onSwipeRight, onSwipeUp, onTouchMoved, onTouchPressed, onTouchReleased, onTouchStationary, onZoomFinished, onZoom, onZoomStarted, opacity, parent, pickOnBounds, pressed, rotate, rotationAxis, scaleX, scaleY, scaleZ, scene, style, translateX, translateY, translateZ, visible
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Field Summary
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Fields inherited from class javafx.scene.layout.Region
USE_COMPUTED_SIZE, USE_PREF_SIZE
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Fields inherited from class javafx.scene.Node
BASELINE_OFFSET_SAME_AS_HEIGHT
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Constructor Summary
Constructors Constructor and Description ChoiceBox()Create a new ChoiceBox which has an empty list of items.ChoiceBox(ObservableList<T> items)Create a new ChoiceBox with the given set of items.
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Method Summary
All MethodsInstance MethodsConcrete Methods Modifier and Type Method and Description ObjectProperty<StringConverter<T>>converterProperty()Allows a way to specify how to represent objects in the items list.protected Skin<?>createDefaultSkin()Create a new instance of the default skin for this control.voidexecuteAccessibleAction(AccessibleAction action, Object... parameters)This method is called by the assistive technology to request the action indicated by the argument should be executed.StringConverter<T>getConverter()Gets the value of the property converter.ObservableList<T>getItems()Gets the value of the property items.SingleSelectionModel<T>getSelectionModel()Gets the value of the property selectionModel.TgetValue()Gets the value of the property value.voidhide()Closes the list of choices.booleanisShowing()Gets the value of the property showing.ObjectProperty<ObservableList<T>>itemsProperty()The items to display in the choice box.ObjectqueryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters)* Accessibility handling * *ObjectProperty<SingleSelectionModel<T>>selectionModelProperty()The selection model for the ChoiceBox.voidsetConverter(StringConverter<T> value)Sets the value of the property converter.voidsetItems(ObservableList<T> value)Sets the value of the property items.voidsetSelectionModel(SingleSelectionModel<T> value)Sets the value of the property selectionModel.voidsetValue(T value)Sets the value of the property value.voidshow()Opens the list of choices.ReadOnlyBooleanPropertyshowingProperty()Indicates whether the drop down is displaying the list of choices to the user.ObjectProperty<T>valueProperty()The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model.-
Methods inherited from class javafx.scene.control.Control
computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, computePrefHeight, computePrefWidth, contextMenuProperty, getBaselineOffset, getClassCssMetaData, getContextMenu, getControlCssMetaData, getCssMetaData, getSkin, getTooltip, isResizable, layoutChildren, setContextMenu, setSkin, setTooltip, skinProperty, tooltipProperty
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Methods inherited from class javafx.scene.layout.Region
backgroundProperty, borderProperty, cacheShapeProperty, centerShapeProperty, getBackground, getBorder, getHeight, getInsets, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOpaqueInsets, getPadding, getPrefHeight, getPrefWidth, getShape, getUserAgentStylesheet, getWidth, heightProperty, insetsProperty, isCacheShape, isCenterShape, isScaleShape, isSnapToPixel, layoutInArea, layoutInArea, layoutInArea, layoutInArea, maxHeight, maxHeightProperty, maxWidth, maxWidthProperty, minHeight, minHeightProperty, minWidth, minWidthProperty, opaqueInsetsProperty, paddingProperty, positionInArea, positionInArea, prefHeight, prefHeightProperty, prefWidth, prefWidthProperty, resize, scaleShapeProperty, setBackground, setBorder, setCacheShape, setCenterShape, setHeight, setMaxHeight, setMaxSize, setMaxWidth, setMinHeight, setMinSize, setMinWidth, setOpaqueInsets, setPadding, setPrefHeight, setPrefSize, setPrefWidth, setScaleShape, setShape, setSnapToPixel, setWidth, shapeProperty, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapSize, snapSpace, snapToPixelProperty, widthProperty
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Methods inherited from class javafx.scene.Parent
getChildren, getChildrenUnmodifiable, getManagedChildren, getStylesheets, isNeedsLayout, layout, lookup, needsLayoutProperty, requestLayout, requestParentLayout, setNeedsLayout, updateBounds
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Methods inherited from class javafx.scene.Node
accessibleHelpProperty, accessibleRoleDescriptionProperty, accessibleRoleProperty, accessibleTextProperty, addEventFilter, addEventHandler, applyCss, autosize, blendModeProperty, boundsInLocalProperty, boundsInParentProperty, buildEventDispatchChain, cacheHintProperty, cacheProperty, clipProperty, computeAreaInScreen, contains, contains, cursorProperty, depthTestProperty, disabledProperty, disableProperty, effectiveNodeOrientationProperty, effectProperty, eventDispatcherProperty, fireEvent, focusedProperty, focusTraversableProperty, getAccessibleHelp, getAccessibleRole, getAccessibleRoleDescription, getAccessibleText, getBlendMode, getBoundsInLocal, getBoundsInParent, getCacheHint, getClip, getContentBias, getCursor, getDepthTest, getEffect, getEffectiveNodeOrientation, getEventDispatcher, getId, getInputMethodRequests, getLayoutBounds, getLayoutX, getLayoutY, getLocalToParentTransform, getLocalToSceneTransform, getNodeOrientation, getOnContextMenuRequested, getOnDragDetected, getOnDragDone, getOnDragDropped, getOnDragEntered, getOnDragExited, getOnDragOver, getOnInputMethodTextChanged, getOnKeyPressed, getOnKeyReleased, getOnKeyTyped, getOnMouseClicked, getOnMouseDragEntered, getOnMouseDragExited, getOnMouseDragged, getOnMouseDragOver, getOnMouseDragReleased, getOnMouseEntered, getOnMouseExited, getOnMouseMoved, getOnMousePressed, getOnMouseReleased, getOnRotate, getOnRotationFinished, getOnRotationStarted, getOnScroll, getOnScrollFinished, getOnScrollStarted, getOnSwipeDown, getOnSwipeLeft, getOnSwipeRight, getOnSwipeUp, getOnTouchMoved, getOnTouchPressed, getOnTouchReleased, getOnTouchStationary, getOnZoom, getOnZoomFinished, getOnZoomStarted, getOpacity, getParent, getProperties, getPseudoClassStates, getRotate, getRotationAxis, getScaleX, getScaleY, getScaleZ, getScene, getStyle, getStyleableParent, getStyleClass, getTransforms, getTranslateX, getTranslateY, getTranslateZ, getTypeSelector, getUserData, hasProperties, hoverProperty, idProperty, inputMethodRequestsProperty, intersects, intersects, isCache, isDisable, isDisabled, isFocused, isFocusTraversable, isHover, isManaged, isMouseTransparent, isPickOnBounds, isPressed, isVisible, layoutBoundsProperty, layoutXProperty, layoutYProperty, localToParent, localToParent, localToParent, localToParent, localToParent, localToParentTransformProperty, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToSceneTransformProperty, localToScreen, localToScreen, localToScreen, localToScreen, localToScreen, lookupAll, managedProperty, mouseTransparentProperty, nodeOrientationProperty, notifyAccessibleAttributeChanged, onContextMenuRequestedProperty, onDragDetectedProperty, onDragDoneProperty, onDragDroppedProperty, onDragEnteredProperty, onDragExitedProperty, onDragOverProperty, onInputMethodTextChangedProperty, onKeyPressedProperty, onKeyReleasedProperty, onKeyTypedProperty, onMouseClickedProperty, onMouseDragEnteredProperty, onMouseDragExitedProperty, onMouseDraggedProperty, onMouseDragOverProperty, onMouseDragReleasedProperty, onMouseEnteredProperty, onMouseExitedProperty, onMouseMovedProperty, onMousePressedProperty, onMouseReleasedProperty, onRotateProperty, onRotationFinishedProperty, onRotationStartedProperty, onScrollFinishedProperty, onScrollProperty, onScrollStartedProperty, onSwipeDownProperty, onSwipeLeftProperty, onSwipeRightProperty, onSwipeUpProperty, onTouchMovedProperty, onTouchPressedProperty, onTouchReleasedProperty, onTouchStationaryProperty, onZoomFinishedProperty, onZoomProperty, onZoomStartedProperty, opacityProperty, parentProperty, parentToLocal, parentToLocal, parentToLocal, parentToLocal, parentToLocal, pickOnBoundsProperty, pressedProperty, pseudoClassStateChanged, relocate, removeEventFilter, removeEventHandler, requestFocus, resizeRelocate, rotateProperty, rotationAxisProperty, scaleXProperty, scaleYProperty, scaleZProperty, sceneProperty, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, screenToLocal, screenToLocal, screenToLocal, setAccessibleHelp, setAccessibleRole, setAccessibleRoleDescription, setAccessibleText, setBlendMode, setCache, setCacheHint, setClip, setCursor, setDepthTest, setDisable, setDisabled, setEffect, setEventDispatcher, setEventHandler, setFocused, setFocusTraversable, setHover, setId, setInputMethodRequests, setLayoutX, setLayoutY, setManaged, setMouseTransparent, setNodeOrientation, setOnContextMenuRequested, setOnDragDetected, setOnDragDone, setOnDragDropped, setOnDragEntered, setOnDragExited, setOnDragOver, setOnInputMethodTextChanged, setOnKeyPressed, setOnKeyReleased, setOnKeyTyped, setOnMouseClicked, setOnMouseDragEntered, setOnMouseDragExited, setOnMouseDragged, setOnMouseDragOver, setOnMouseDragReleased, setOnMouseEntered, setOnMouseExited, setOnMouseMoved, setOnMousePressed, setOnMouseReleased, setOnRotate, setOnRotationFinished, setOnRotationStarted, setOnScroll, setOnScrollFinished, setOnScrollStarted, setOnSwipeDown, setOnSwipeLeft, setOnSwipeRight, setOnSwipeUp, setOnTouchMoved, setOnTouchPressed, setOnTouchReleased, setOnTouchStationary, setOnZoom, setOnZoomFinished, setOnZoomStarted, setOpacity, setPickOnBounds, setPressed, setRotate, setRotationAxis, setScaleX, setScaleY, setScaleZ, setStyle, setTranslateX, setTranslateY, setTranslateZ, setUserData, setVisible, snapshot, snapshot, startDragAndDrop, startFullDrag, styleProperty, toBack, toFront, toString, translateXProperty, translateYProperty, translateZProperty, usesMirroring, visibleProperty
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Property Detail
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selectionModel
public final ObjectProperty<SingleSelectionModel<T>> selectionModelProperty
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
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showing
public final ReadOnlyBooleanProperty showingProperty
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.See Also:
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items
public final ObjectProperty<ObservableList<T>> itemsProperty
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.See Also:
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converter
public ObjectProperty<StringConverter<T>> converterProperty
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in thejavafx.util.converterpackage can be set.Since:
JavaFX 2.1
See Also:
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value
public ObjectProperty<T> valueProperty
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.Since:
JavaFX 2.1
See Also:
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Constructor Detail
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ChoiceBox
public ChoiceBox()
Create a new ChoiceBox which has an empty list of items.
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ChoiceBox
public ChoiceBox(ObservableList<T> items)
Create a new ChoiceBox with the given set of items. Since it is observable, the content of this list may change over time and the ChoiceBox will be updated accordingly.Parameters:
items-
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Method Detail
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setSelectionModel
public final void setSelectionModel(SingleSelectionModel<T> value)
Sets the value of the property selectionModel.Property description:
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
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getSelectionModel
public final SingleSelectionModel<T> getSelectionModel()
Gets the value of the property selectionModel.Property description:
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
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selectionModelProperty
public final ObjectProperty<SingleSelectionModel<T>> selectionModelProperty()
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
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isShowing
public final boolean isShowing()
Gets the value of the property showing.Property description:
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.
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showingProperty
public final ReadOnlyBooleanProperty showingProperty()
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.See Also:
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setItems
public final void setItems(ObservableList<T> value)
Sets the value of the property items.Property description:
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.
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getItems
public final ObservableList<T> getItems()
Gets the value of the property items.Property description:
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.
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itemsProperty
public final ObjectProperty<ObservableList<T>> itemsProperty()
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.See Also:
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converterProperty
public ObjectProperty<StringConverter<T>> converterProperty()
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in thejavafx.util.converterpackage can be set.Since:
JavaFX 2.1
See Also:
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setConverter
public final void setConverter(StringConverter<T> value)
Sets the value of the property converter.Property description:
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the
javafx.util.converterpackage can be set.Since:
JavaFX 2.1
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getConverter
public final StringConverter<T> getConverter()
Gets the value of the property converter.Property description:
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the
javafx.util.converterpackage can be set.Since:
JavaFX 2.1
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valueProperty
public ObjectProperty<T> valueProperty()
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.Since:
JavaFX 2.1
See Also:
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setValue
public final void setValue(T value)
Sets the value of the property value.Property description:
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1
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getValue
public final T getValue()
Gets the value of the property value.Property description:
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1
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show
public void show()
Opens the list of choices.
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hide
public void hide()
Closes the list of choices.
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createDefaultSkin
protected Skin<?> createDefaultSkin()
Create a new instance of the default skin for this control. This is called to create a skin for the control if no skin is provided via CSS-fx-skinor set explicitly in a sub-class withsetSkin(...).Overrides:
createDefaultSkinin classControlReturns:
new instance of default skin for this control. If null then the control will have no skin unless one is provided by css.
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queryAccessibleAttribute
public Object queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters)* Accessibility handling * *Overrides:
queryAccessibleAttributein classControlParameters:
attribute- the requested attributeReturns:
the value for the requested attribute
See Also:
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executeAccessibleAction
public void executeAccessibleAction(AccessibleAction action, Object... parameters)Description copied from class:NodeThis method is called by the assistive technology to request the action indicated by the argument should be executed.This method is commonly overridden by subclasses to implement action that are required for a specific role.
If a particular action is not handled, the super class implementation must be called.Overrides:
executeAccessibleActionin classControlParameters:
action- the action to executeSee Also:
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