Module java.desktop
Package javax.sound.sampled

Class Line.Info

java.lang.Object
javax.sound.sampled.Line.Info
Direct Known Subclasses:
DataLine.Info, Port.Info
Enclosing interface:
Line
public static class Line.Info
extends Object
A Line.Info object contains information about a line. The only information provided by Line.Info itself is the Java class of the line. A subclass of Line.Info adds other kinds of information about the line. This additional information depends on which Line subinterface is implemented by the kind of line that the Line.Info subclass describes.

A Line.Info can be retrieved using various methods of the Line, Mixer, and AudioSystem interfaces. Other such methods let you pass a Line.Info as an argument, to learn whether lines matching the specified configuration are available and to obtain them.

Since:
1.3
See Also:
Line.getLineInfo(), Mixer.getSourceLineInfo(), Mixer.getTargetLineInfo(), Mixer.getLine(Line.Info), Mixer.getSourceLineInfo(Line.Info), Mixer.getTargetLineInfo(Line.Info), Mixer.isLineSupported(Line.Info), AudioSystem.getLine(Line.Info), AudioSystem.getSourceLineInfo(Line.Info), AudioSystem.getTargetLineInfo(Line.Info), AudioSystem.isLineSupported(Line.Info)

  • Constructor Summary

    Constructors 
    Constructor Description
    Info​(Class<?> lineClass)
    Constructs an info object that describes a line of the specified class.

  • Method Summary

    Modifier and Type Method Description
    Class<?> getLineClass()
    Obtains the class of the line that this Line.Info object describes.
    boolean matches​(Line.Info info)
    Indicates whether the specified info object matches this one.
    String toString()
    Obtains a textual description of the line info.

    Methods declared in class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • Info

      public Info​(Class<?> lineClass)
      Constructs an info object that describes a line of the specified class. This constructor is typically used by an application to describe a desired line.
      Parameters:
      lineClass - the class of the line that the new Line.Info object describes

  • Method Details

    • getLineClass

      public Class<?> getLineClass()
      Obtains the class of the line that this Line.Info object describes.
      Returns:
      the described line's class

    • matches

      public boolean matches​(Line.Info info)
      Indicates whether the specified info object matches this one. To match, the specified object must be identical to or a special case of this one. The specified info object must be either an instance of the same class as this one, or an instance of a sub-type of this one. In addition, the attributes of the specified object must be compatible with the capabilities of this one. Specifically, the routing configuration for the specified info object must be compatible with that of this one. Subclasses may add other criteria to determine whether the two objects match.
      Parameters:
      info - the info object which is being compared to this one
      Returns:
      true if the specified object matches this one, false otherwise

    • toString

      public String toString()
      Obtains a textual description of the line info.
      Overrides:
      toString in class Object
      Returns:
      a string description