com.neoworks.jukex.sqlimpl
Interface BatchTrackLoader

public interface BatchTrackLoader

Interface that allows a batch retrieval of tracks in order to atone for the inherent slowness of retrieving their attributes from the database on a per track basis, resulting in a huge number of queries.

Author:

Nick Vincent

Method Summary

void	addTrack(long id) Add a trackID to this batch for retrieval.
void	addTracks(java.util.List idlist) Add all of the IDs from this list to the batch for retrieval The List specified must contain Long objects.
java.util.Map	getTracks() Retrieve the tracks with the ids that this loader has been told about.
void	reset() Clear the IDs to retrieve

Method Detail

getTracks

public java.util.Map getTracks()

Retrieve the tracks with the ids that this loader has been told about. The function returns a Map of Track objects keyed by Track ID. The Track IDs themselves are Long objects.

Returns:

A Map keyed by Long objects containing Track objects.

addTrack

public void addTrack(long id)

Add a trackID to this batch for retrieval. Tracks are retrieved in the order in which the IDs are added.

Parameters:

id - The ID to add to the batch.

addTracks

public void addTracks(java.util.List idlist)

Add all of the IDs from this list to the batch for retrieval The List specified must contain Long objects. Any other objects will be ignored.

Parameters:

idlist - A List of Long objects representing the IDs of Tracks to add to the batch.

reset

public void reset()

Clear the IDs to retrieve