- java.lang.Object
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- javax.sound.midi.spi.MidiDeviceProvider
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public abstract class MidiDeviceProvider extends Object
AMidiDeviceProvider
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.
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Constructor Summary
Constructors Constructor Description MidiDeviceProvider()
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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 thisMidiDeviceProvider
.boolean
isDeviceSupported(MidiDevice.Info info)
Indicates whether the device provider supports the device represented by the specified device info object.
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Method Detail
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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
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getDeviceInfo
public abstract MidiDevice.Info[] getDeviceInfo()
Obtains the set of info objects representing the device or devices provided by thisMidiDeviceProvider
.- Returns:
- set of device info objects
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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
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