*/
public class DataManager {
+ @SuppressWarnings("synthetic-access")
private final ObjectCreator<Artist> artistCreator = new ArtistCreator();
+ @SuppressWarnings("synthetic-access")
private final ObjectCreator<Group> groupCreator = new GroupCreator();
+ @SuppressWarnings("synthetic-access")
private final ObjectCreator<Track> trackCreator = new TrackCreator();
+ @SuppressWarnings("synthetic-access")
+ private final ObjectCreator<Style> styleCreator = new StyleCreator();
private final Database database;
return database.getMultiple(query, artistCreator);
}
- public Track trackById(String id) throws DatabaseException {
+ public List<Artist> getArtistsByTrack(String trackId) throws DatabaseException {
+ Query query = new Query(Type.SELECT, "ARTISTS");
+ query.addField(new Field("ARTISTS.*"));
+ query.addJoin(new Join(JoinType.INNER, "TRACK_ARTISTS", new Field("TRACK_ARTISTS.ARTIST"), new Field("ARTISTS.ID")));
+ query.addWhereClause(new ValueFieldWhereClause(new ValueField("TRACK_ARTISTS.TRACK", new StringParameter(trackId))));
+ query.addOrderField(new OrderField(new Field("TRACK_ARTISTS.DISPLAY_ORDER")));
+ return database.getMultiple(query, artistCreator);
+ }
+
+ public Track getTrackById(String id) throws DatabaseException {
Query query = new Query(Type.SELECT, "TRACKS");
query.addField(new Field("TRACKS.*"));
query.addWhereClause(new ValueFieldWhereClause(new ValueField("TRACKS.ID", new StringParameter(id))));
return database.getMultiple(query, groupCreator);
}
+ public Collection<Style> getStylesByTrack(String trackId) throws DatabaseException {
+ Query query = new Query(Type.SELECT, "STYLES");
+ query.addField(new Field("STYLES.*"));
+ query.addJoin(new Join(JoinType.INNER, "TRACK_STYLES", new Field("STYLES.ID"), new Field("TRACK_STYLES.STYLE")));
+ query.addWhereClause(new ValueFieldWhereClause(new ValueField("TRACK_STYLES.TRACK", new StringParameter(trackId))));
+ return database.getMultiple(query, styleCreator);
+ }
+
private class LazyArtist extends DefaultArtist {
private final Memoizer<Void> tracksMemoizer = new Memoizer<Void>(new Callable<Void>() {
+ @Override
public Void call() throws DatabaseException {
if (!hasValue("tracks")) {
- value("tracks", Collection.class).set(getTracksByArtist(id()));
+ getValue("tracks", Collection.class).set(getTracksByArtist(getId()));
}
return null;
}
@Override
public Void call() throws Exception {
if (!hasValue("groups")) {
- value("groups", Collection.class).set(getGroupsByArtist(id()));
+ getValue("groups", Collection.class).set(getGroupsByArtist(getId()));
}
return null;
}
* {@inheritDoc}
*/
@Override
- public Collection<Group> groups() {
+ public Collection<Group> getGroups() {
groupsMemoizer.get();
- return super.groups();
+ return super.getGroups();
}
- public Collection<Track> tracks() {
+ @Override
+ public Collection<Track> getTracks() {
tracksMemoizer.get();
- return super.tracks();
+ return super.getTracks();
}
}
*/
@Override
public Artist createObject(ResultSet resultSet) throws SQLException {
- return new LazyArtist(resultSet.getString("ARTISTS.ID")).name(resultSet.getString("ARTISTS.NAME"));
+ return new LazyArtist(resultSet.getString("ARTISTS.ID")).setName(resultSet.getString("ARTISTS.NAME"));
}
}
@Override
public Void call() throws Exception {
if (!hasValue("artists")) {
- value("artists", Collection.class).set(getArtistsByGroup(id()));
+ getValue("artists", Collection.class).set(getArtistsByGroup(getId()));
}
return null;
}
* {@inheritDoc}
*/
@Override
- public Collection<Artist> artists() {
+ public Collection<Artist> getArtists() {
artistsMemoizer.get();
- return super.artists();
+ return super.getArtists();
}
}
*/
@Override
public Group createObject(ResultSet resultSet) throws SQLException {
- return new LazyGroup(resultSet.getString("GROUPS.ID")).name(resultSet.getString("GROUPS.NAME")).url(resultSet.getString("GROUPS.URL"));
+ return new LazyGroup(resultSet.getString("GROUPS.ID")).setName(resultSet.getString("GROUPS.NAME")).setUrl(resultSet.getString("GROUPS.URL"));
}
}
@Override
public Void call() throws Exception {
if (!hasValue("artists")) {
- value("artists", List.class).set(getArtistsByTrack(id()));
+ getValue("artists", List.class).set(getArtistsByTrack(getId()));
+ }
+ return null;
+ }
+
+ });
+
+ private final Memoizer<Void> stylesMemoizer = new Memoizer<Void>(new Callable<Void>() {
+
+ @Override
+ public Void call() throws Exception {
+ if (!hasValue("styles")) {
+ getValue("styles", Collection.class).set(getStylesByTrack(getId()));
}
return null;
}
* {@inheritDoc}
*/
@Override
- public List<Artist> artists() {
+ public List<Artist> getArtists() {
artistsMemoizer.get();
- return super.artists();
+ return super.getArtists();
}
/**
* {@inheritDoc}
*/
@Override
- public Collection<Style> styles() {
- // TODO Auto-generated method stub
- return super.styles();
+ public Collection<Style> getStyles() {
+ stylesMemoizer.get();
+ return super.getStyles();
}
}
*/
@Override
public Track createObject(ResultSet resultSet) throws SQLException {
- return new LazyTrack(resultSet.getString("TRACKS.ID")).name(resultSet.getString("TRACKS.NAME"));
+ return new LazyTrack(resultSet.getString("TRACKS.ID")).setName(resultSet.getString("TRACKS.NAME"));
+ }
+
+ }
+
+ private class StyleCreator implements ObjectCreator<Style> {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public Style createObject(ResultSet resultSet) throws SQLException {
+ return new DefaultStyle(resultSet.getString("STYLES.ID")).setName(resultSet.getString("STYLES.NAME"));
}
}