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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

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public static class Port.Info

extends Line.Info

This describes a single port.

Since:

1.3

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Field Summary
static Port.Info	COMPACT_DISC           A CD player.
static Port.Info	HEADPHONE           Headphones.
private  boolean	isSource
static Port.Info	LINE_IN           Generic input line.
static Port.Info	LINE_OUT           Generic output line.
static Port.Info	MICROPHONE           A microphone.
private  java.lang.String	name
static Port.Info	SPEAKER           A speaker.

 

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

 

Constructor Summary

Port.Info(java.lang.Class klass, java.lang.String name, boolean isSource)           Create a new Info object, given the line's class, the name, and an argument indicating whether this is an input or an output.

 

Method Summary
boolean	equals(java.lang.Object o)           Determine whether this Object is semantically equal to another Object.
java.lang.String	getName()           Return the name of this object.
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
boolean	isSource()           Return true if this describes an input line.
boolean	matches(Line.Info other)           Return true if this Info object matches the given object.
java.lang.String	toString()           Return a description of this Info object.

 

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

COMPACT_DISC

public static final Port.Info COMPACT_DISC

A CD player.

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HEADPHONE

public static final Port.Info HEADPHONE

Headphones.

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LINE_IN

public static final Port.Info LINE_IN

Generic input line.

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LINE_OUT

public static final Port.Info LINE_OUT

Generic output line.

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MICROPHONE

public static final Port.Info MICROPHONE

A microphone.

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SPEAKER

public static final Port.Info SPEAKER

A speaker.

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name

private java.lang.String name

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isSource

private boolean isSource

Constructor Detail

Port.Info

public Port.Info(java.lang.Class klass,
                 java.lang.String name,
                 boolean isSource)

Create a new Info object, given the line's class, the name, and an argument indicating whether this is an input or an output.

Method Detail

equals

public final boolean equals(java.lang.Object o)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

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hashCode

public final int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

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getName

public java.lang.String getName()

Return the name of this object.

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isSource

public boolean isSource()

Return true if this describes an input line.

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matches

public boolean matches(Line.Info other)

Description copied from class: Line.Info

Return true if this Info object matches the given object.

Overrides:

matches in class Line.Info

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toString

public final java.lang.String toString()

Description copied from class: Line.Info

Return a description of this Info object.

Overrides:

toString in class Line.Info

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Home >> All >> javax >> sound >> [ sampled overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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