Port.Info (Java 2 Platform SE v1.4.1_"07")

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JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

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## javax.sound.sampled
Class Port.Info

    java.lang.Object
      |
      +--javax.sound.sampled.Line.Info
            |
            +--javax.sound.sampled.Port.Info

Enclosing class:
  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 Summary
`static Port.Info` | `COMPACT_DISC` A type of port that gets audio from a CD-ROM drive.
`static Port.Info` | `HEADPHONE` A type of port that sends audio to a headphone jack.
`static Port.Info` | `LINE_IN` A type of port that gets audio from a line-level audio input jack.
`static Port.Info` | `LINE_OUT` A type of port that sends audio to a line-level audio output jack.
`static Port.Info` | `MICROPHONE` A type of port that gets audio from a built-in microphone or a microphone jack.
`static Port.Info` | `SPEAKER` A type of port that sends audio to a built-in speaker or a speaker jack.

Constructor Summary
`Port.Info(Class lineClass, String name, boolean isSource)` Constructs a port's info object from the information given.

Method Summary
`boolean` | `equals(Object obj)` Finalizes the equals method
`String` | `getName()` Obtains the name of the port.
`int` | `hashCode()` Finalizes the hashCode method
`boolean` | `isSource()` Indicates whether the port is a source or a target for its mixer.
`boolean` | `matches(Line.Info info)` Indicates whether this info object specified matches this one.
`String` | `toString()` Provides a `String` representation of the port.

Methods inherited from class javax.sound.sampled.Line.Info
`getLineClass`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

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

### Port.Info

    public Port.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()`, `Hashtable`

### hashCode

    public final int hashCode()

  Finalizes the hashCode method

  Overrides:
    `hashCode` in class `Object`
  Returns:
    a hash code value for this object.
  See Also:
    `Object.equals(java.lang.Object)`, `Hashtable`

### 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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JavaTM 2 Platform
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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 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.