Java javax.sound.sampled Class Port.Info（JDK8）

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Java™ Platform
Standard Ed. 8

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java.lang.Object
- javax.sound.sampled.Line.Info
- - javax.sound.sampled.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 Summary

Fields
Modifier and Type	Field and Description
`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

Constructors
Constructor and Description
`Info(Class<?> lineClass, String name, boolean isSource)` Constructs a port's info object from the information given.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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
  - 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
  - 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), System.identityHashCode(java.lang.Object)
  - 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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Java javax.sound.sampled Class Port.Info（JDK8）

Class Port.Info

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Field Detail

MICROPHONE

LINE_IN

COMPACT_DISC

SPEAKER

HEADPHONE

LINE_OUT

Constructor Detail

Info

Method Detail

getName

isSource

matches

equals

hashCode

toString