javax.sound.midi.spi
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()

Method Summary

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 inherited from class java.lang.Object

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

Constructor Detail

MidiDeviceProvider

public MidiDeviceProvider()

Method Detail

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

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.