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
Constructor | Description |
---|---|
MidiDeviceProvider() |
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 |
boolean | isDeviceSupported(MidiDevice.Info info) | Indicates whether the device provider supports the device represented by the specified device info object. |
Methods declared in 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, otherwisefalse
- Throws:
-
NullPointerException
- ifinfo
isnull
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 thisMidiDeviceProvider
-
NullPointerException
- ifinfo
isnull