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102 lines
2.8 KiB
102 lines
2.8 KiB
/*
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* Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.sound.sampled.spi;
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import javax.sound.sampled.Mixer;
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/**
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* A provider or factory for a particular mixer type.
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* This mechanism allows the implementation to determine
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* how resources are managed in creation / management of
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* a mixer.
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*
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* @author Kara Kytle
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* @since 1.3
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*/
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public abstract class MixerProvider {
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/**
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* Indicates whether the mixer provider supports the mixer represented by
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* the specified mixer info object.
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* <p>
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* The full set of mixer info objects that represent the mixers supported
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* by this {@code MixerProvider} may be obtained
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* through the {@code getMixerInfo} method.
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*
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* @param info an info object that describes the mixer for which support is queried
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* @return {@code true} if the specified mixer is supported,
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* otherwise {@code false}
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* @see #getMixerInfo()
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*/
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public boolean isMixerSupported(Mixer.Info info) {
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Mixer.Info infos[] = getMixerInfo();
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for(int i=0; i<infos.length; i++){
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if( info.equals( infos[i] ) ) {
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return true;
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}
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}
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return false;
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}
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/**
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* Obtains the set of info objects representing the mixer
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* or mixers provided by this MixerProvider.
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* <p>
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* The {@code isMixerSupported} method returns {@code true}
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* for all the info objects returned by this method.
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* The corresponding mixer instances for the info objects
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* are returned by the {@code getMixer} method.
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*
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* @return a set of mixer info objects
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* @see #getMixer(javax.sound.sampled.Mixer.Info) getMixer(Mixer.Info)
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* @see #isMixerSupported(javax.sound.sampled.Mixer.Info) isMixerSupported(Mixer.Info)
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*/
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public abstract Mixer.Info[] getMixerInfo();
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/**
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* Obtains an instance of the mixer represented by the info object.
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* <p>
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* The full set of the mixer info objects that represent the mixers
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* supported by this {@code MixerProvider} may be obtained
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* through the {@code getMixerInfo} method.
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* Use the {@code isMixerSupported} method to test whether
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* this {@code MixerProvider} supports a particular mixer.
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*
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* @param info an info object that describes the desired mixer
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* @return mixer instance
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* @throws IllegalArgumentException if the info object specified does not
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* match the info object for a mixer supported by this MixerProvider.
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* @see #getMixerInfo()
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* @see #isMixerSupported(javax.sound.sampled.Mixer.Info) isMixerSupported(Mixer.Info)
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*/
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public abstract Mixer getMixer(Mixer.Info info);
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}
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