Class Port.Info

public static final Port.Info COMPACT_DISC

A CD player.

public static final Port.Info HEADPHONE

Headphones.

public static final Port.Info LINE_IN

Generic input line.

public static final Port.Info LINE_OUT

Generic output line.

public static final Port.Info MICROPHONE

A microphone.

public static final Port.Info SPEAKER

A speaker.

public Info(Class klass,
            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.

Parameters:

klass - the class of the line

name - the name of the line

isSource - true if this is an input source

public final boolean equals(Object o)

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 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 NullPointerException.

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

The default implementation returns this == o.

Overrides:

equals in interface Object

Parameters:

Returns:

whether this Object is semantically equal to another

See Also:

Object.hashCode()

public String getName()

Return the name of this object.

public final int hashCode()

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 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)

Overrides:

hashCode in interface Object

Returns:

the hash code for this Object

See Also:

Object.equals(Object), System.identityHashCode(Object)

public boolean isSource()

Return true if this describes an input line.

public boolean matches(Line.Info other)

Return true if this Info object matches the given object.

Overrides:

matches in interface Line.Info

Parameters:

other - the object to match

Returns:

true if they match, false otherwise

public final String toString()

Return a description of this Info object.

Overrides:

toString in interface Line.Info