- java.lang.Object
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- javax.sound.midi.spi.MidiDeviceProvider
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public abstract class MidiDeviceProvider extends Object
AMidiDeviceProvideris 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
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract MidiDevicegetDevice(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.booleanisDeviceSupported(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:
trueif the specified device is supported, otherwisefalse- Throws:
NullPointerException- ifinfoisnull
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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 thisMidiDeviceProviderNullPointerException- ifinfoisnull
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