Class MidiDeviceProvider

java.lang.Object

javax.sound.midi.spi.MidiDeviceProvider

public abstract class MidiDeviceProvider extends Object

A MidiDeviceProvider is a factory or provider for a particular type of MIDI device. This mechanism allows the implementation to determine how resources are managed in the creation and management of a device.

Constructor Summary

MidiDeviceProvider()

Modifier	Constructor	Description
`protected`	Constructor for subclasses to call.

Method Summary

Modifier and Type	Method	Description
`abstract MidiDevice`	`getDevice(MidiDevice.Info info)`	Obtains an instance of the device represented by the info object.
`abstract MidiDevice.Info[]`	`getDeviceInfo()`	Obtains the set of info objects representing the device or devices provided by this `MidiDeviceProvider`.
`boolean`	`isDeviceSupported(MidiDevice.Info info)`	Indicates whether the device provider supports the device represented by the specified device info object.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

MidiDeviceProvider

protected MidiDeviceProvider()

Constructor for subclasses to call.

Method Details

isDeviceSupported

public boolean isDeviceSupported(MidiDevice.Info info)

Indicates whether the device provider supports the device represented by the specified device info object.

Parameters:: info - an info object that describes the device for which support is queried
Returns:: true if the specified device is supported, otherwise false
Throws:: NullPointerException - if info is null

getDeviceInfo

public abstract MidiDevice.Info[] getDeviceInfo()

Obtains the set of info objects representing the device or devices provided by this MidiDeviceProvider.

Returns:: set of device info objects

getDevice

public abstract MidiDevice getDevice(MidiDevice.Info info)

Obtains an instance of the device represented by the info object.

Parameters:: info - an info object that describes the desired device
Returns:: device instance
Throws:: IllegalArgumentException - if the info object specified does not match the info object for a device supported by this MidiDeviceProvider; NullPointerException - if info is null

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