org.qtunes.db
Class DerivedField<T>

java.lang.Object
  org.qtunes.db.DerivedField<T>

All Implemented Interfaces:

AbstractField<T>

public abstract class DerivedField<T>
extends java.lang.Object
implements AbstractField<T>

A DerivedField is a field derived from other properties of the Track. These are mainly used for Services that need them, eg the DaapServer creates a few in the DaapField class

Constructor Summary

DerivedField(java.lang.String name)

Method Summary

abstract T	get(Track track)
java.lang.String	getName() Return the name of the field, eg "Artist"
boolean	isCacheable() Can this derived value be cached, or will it change over time?
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DerivedField

public DerivedField(java.lang.String name)

Method Detail

get

public abstract T get(Track track)

isCacheable

public boolean isCacheable()

Can this derived value be cached, or will it change over time?

getName

public java.lang.String getName()

Description copied from interface: AbstractField

Return the name of the field, eg "Artist"

Specified by:

getName in interface AbstractField<T>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object