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Java Standard Edition (SE)

Port.Info


javax.sound.sampled

Class Port.Info

  • Enclosing interface:
    Port


    public static class Port.Info
    extends Line.Info
    The Port.Info class extends Line.Info with additional information specific to ports, including the port's name and whether it is a source or a target for its mixer. By definition, a port acts as either a source or a target to its mixer, but not both. (Audio input ports are sources; audio output ports are targets.)

    To learn what ports are available, you can retrieve port info objects through the getSourceLineInfo and getTargetLineInfo methods of the Mixer interface. Instances of the Port.Info class may also be constructed and used to obtain lines matching the parameters specified in the Port.Info object.

    Since:
    1.3
    • Field Detail

      • MICROPHONE

        public static final Port.Info MICROPHONE
        A type of port that gets audio from a built-in microphone or a microphone jack.
      • LINE_IN

        public static final Port.Info LINE_IN
        A type of port that gets audio from a line-level audio input jack.
      • COMPACT_DISC

        public static final Port.Info COMPACT_DISC
        A type of port that gets audio from a CD-ROM drive.
      • SPEAKER

        public static final Port.Info SPEAKER
        A type of port that sends audio to a built-in speaker or a speaker jack.
      • HEADPHONE

        public static final Port.Info HEADPHONE
        A type of port that sends audio to a headphone jack.
      • LINE_OUT

        public static final Port.Info LINE_OUT
        A type of port that sends audio to a line-level audio output jack.
    • Constructor Detail

      • Info

        public Info(Class<?> lineClass,
                    String name,
                    boolean isSource)
        Constructs a port's info object from the information given. This constructor is typically used by an implementation of Java Sound to describe a supported line.
        Parameters:
        lineClass - the class of the port described by the info object.
        name - the string that names the port
        isSource - true if the port is a source port (such as a microphone), false if the port is a target port (such as a speaker).
    • Method Detail

      • getName

        public String getName()
        Obtains the name of the port.
        Returns:
        the string that names the port
      • isSource

        public boolean isSource()
        Indicates whether the port is a source or a target for its mixer.
        Returns:
        true if the port is a source port (such as a microphone), false if the port is a target port (such as a speaker).
      • matches

        public boolean matches(Line.Info info)
        Indicates whether this info object specified matches this one. To match, the match requirements of the superclass must be met and the types must be equal.
        Overrides:
        matches in class Line.Info
        Parameters:
        info - the info object for which the match is queried
        Returns:
        true if the specified object matches this one, false otherwise
      • equals

        public final boolean equals(Object obj)
        Finalizes the equals method
        Overrides:
        equals in class Object
        Parameters:
        obj - the reference object with which to compare.
        Returns:
        true if this object is the same as the obj argument; false otherwise.
        See Also:
        Object.hashCode(), HashMap
      • toString

        public final String toString()
        Provides a String representation of the port.
        Overrides:
        toString in class Line.Info
        Returns:
        a string that describes the port


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