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## 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
`Line.Info(Class<?> lineClass)` Constructs an info object that describes a line of the specified class.

Method Summary
`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 inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### Line.Info

    public Line.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 Detail

### 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

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.