Module java.desktop
Package javax.sound.sampled.spi

Class MixerProvider


  • public abstract class MixerProvider
extends Object
    A provider or factory for a particular mixer type. This mechanism allows the implementation to determine how resources are managed in creation / management of a mixer.
    Since:
    1.3

    • Constructor Detail

      • MixerProvider

        public MixerProvider​()

    • Method Detail

      • isMixerSupported

        public boolean isMixerSupported​(Mixer.Info info)
        Indicates whether the mixer provider supports the mixer represented by the specified mixer info object.

        The full set of mixer info objects that represent the mixers supported by this MixerProvider may be obtained through the getMixerInfo method.

        Parameters:
        info - an info object that describes the mixer for which support is queried
        Returns:
        true if the specified mixer is supported, otherwise false
        Throws:
        NullPointerException - if info is null
        See Also:
        getMixerInfo()

      • getMixerInfo

        public abstract Mixer.Info[] getMixerInfo​()
        Obtains the set of info objects representing the mixer or mixers provided by this MixerProvider.

        The isMixerSupported method returns true for all the info objects returned by this method. The corresponding mixer instances for the info objects are returned by the getMixer method.

        Returns:
        a set of mixer info objects
        See Also:
        getMixer(Mixer.Info), isMixerSupported(Mixer.Info)

      • getMixer

        public abstract Mixer getMixer​(Mixer.Info info)
        Obtains an instance of the mixer represented by the info object. If null is passed, then the default mixer will be returned.

        The full set of the mixer info objects that represent the mixers supported by this MixerProvider may be obtained through the getMixerInfo method. Use the isMixerSupported method to test whether this MixerProvider supports a particular mixer.

        Parameters:
        info - an info object that describes the desired mixer, or null for the default mixer
        Returns:
        mixer instance
        Throws:
        IllegalArgumentException - if the info object specified does not match the info object for a mixer supported by this MixerProvider, or if this MixerProvider does not have default mixer, but default mixer has been requested
        See Also:
        getMixerInfo(), isMixerSupported(Mixer.Info)