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javax.sound.sampled
Class BooleanControl

java.lang.Object
 extended by javax.sound.sampled.Control
 extended by javax.sound.sampled.BooleanControl

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public abstract class BooleanControl
extends Control

A BooleanControl provides the ability to switch between two possible settings that affect a line's audio. The settings are boolean values (true and false). A graphical user interface might represent the control by a two-state button, an on/off switch, two mutually exclusive buttons, or a checkbox (among other possibilities). For example, depressing a button might activate a MUTE control to silence the line's audio.

As with other Control subclasses, a method is provided that returns string labels for the values, suitable for display in the user interface.

Since:

1.3

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Nested Class Summary
static class	BooleanControl.Type An instance of the BooleanControl.Type class identifies one kind of boolean control.

Constructor Summary
protected	BooleanControl(BooleanControl.Type type, boolean initialValue) Constructs a new boolean control object with the given parameters.
protected	BooleanControl(BooleanControl.Type type, boolean initialValue, String trueStateLabel, String falseStateLabel) Constructs a new boolean control object with the given parameters.

Method Summary
String	getStateLabel(boolean state) Obtains the label for the specified state.
boolean	getValue() Obtains this control's current value.
void	setValue(boolean value) Sets the current value for the control.
String	toString() Provides a string representation of the control

Methods inherited from class javax.sound.sampled.Control
getType

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BooleanControl

protected BooleanControl(BooleanControl.Type type,
 boolean initialValue,
 String trueStateLabel,
 String falseStateLabel)

Constructs a new boolean control object with the given parameters.

Parameters:

type - the type of control represented this float control object

initialValue - the initial control value

trueStateLabel - the label for the state represented by true, such as "true" or "on."

falseStateLabel - the label for the state represented by false, such as "false" or "off."

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BooleanControl

protected BooleanControl(BooleanControl.Type type,
 boolean initialValue)

Constructs a new boolean control object with the given parameters. The labels for the true and false states default to "true" and "false."

Parameters:

type - the type of control represented by this float control object

initialValue - the initial control value

Method Detail

setValue

public void setValue(boolean value)

Sets the current value for the control. The default implementation simply sets the value as indicated. Some controls require that their line be open before they can be affected by setting a value.

Parameters:

value - desired new value.

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getValue

public boolean getValue()

Obtains this control's current value.

Returns:

current value.

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getStateLabel

public String getStateLabel(boolean state)

Obtains the label for the specified state.

Returns:

the label for the specified state, such as "true" or "on" for true, or "false" or "off" for false.

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toString

public String toString()

Provides a string representation of the control

Overrides:

toString in class Control

Returns:

a string description

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