本文整理了Java中de.lmu.ifi.dbs.elki.database.relation.Relation.getHierarchy方法的一些代码示例，展示了Relation.getHierarchy的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Relation.getHierarchy方法的具体详情如下：
包路径：de.lmu.ifi.dbs.elki.database.relation.Relation
类名称：Relation
方法名：getHierarchy

Relation.getHierarchy介绍

暂无

代码示例

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

/**
 * Do some (limited) type checking, then cast the database into a spatial
 * database.
 *
 * @param relation Database
 * @return Metrical index
 * @throws IllegalStateException when the cast fails.
 */
private MetricalIndexTree<O, N, E> getMetricalIndex(Relation<O> relation) throws IllegalStateException {
 Class<MetricalIndexTree<O, N, E>> mcls = ClassGenericsUtil.uglyCastIntoSubclass(MetricalIndexTree.class);
 ArrayList<MetricalIndexTree<O, N, E>> indexes = ResultUtil.filterResults(relation.getHierarchy(), relation, mcls);
 // FIXME: check we got the right the representation
 if(indexes.size() == 1) {
  return indexes.get(0);
 }
 if(indexes.size() > 1) {
  throw new IllegalStateException("More than one metrical index found - this is not supported!");
 }
 throw new IllegalStateException("No metrical index found!");
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

/**
 * Get (or create) a scales result for a relation.
 *
 * @param rel Relation
 * @return associated scales result
 */
public static ScalesResult getScalesResult(final Relation<? extends SpatialComparable> rel) {
 Collection<ScalesResult> scas = ResultUtil.filterResults(rel.getHierarchy(), rel, ScalesResult.class);
 if(scas.size() == 0) {
  final ScalesResult newsca = new ScalesResult(rel);
  addChildResult(rel, newsca);
  return newsca;
 }
 return scas.iterator().next();
}

代码示例来源：origin: elki-project/elki

/**
  * Get (or create) a scales result for a relation.
  *
  * @param rel Relation
  * @return associated scales result
  */
 public static ScalesResult getScalesResult(final Relation<? extends SpatialComparable> rel) {
  Collection<ScalesResult> scas = ResultUtil.filterResults(rel.getHierarchy(), rel, ScalesResult.class);
  if(scas.isEmpty()) {
   final ScalesResult newsca = new ScalesResult(rel);
   ResultUtil.addChildResult(rel, newsca);
   return newsca;
  }
  return scas.iterator().next();
 }
}

代码示例来源：origin: elki-project/elki

/**
  * Get the sampling result attached to a relation
  *
  * @param rel Relation
  * @return Sampling result.
  */
 public static SamplingResult getSamplingResult(final Relation<?> rel) {
  Collection<SamplingResult> selections = ResultUtil.filterResults(rel.getHierarchy(), rel, SamplingResult.class);
  if(selections.isEmpty()) {
   final SamplingResult newsam = new SamplingResult(rel);
   ResultUtil.addChildResult(rel, newsam);
   return newsam;
  }
  return selections.iterator().next();
 }
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

/**
 * Get the sampling result attached to a relation
 *
 * @param rel Relation
 * @return Sampling result.
 */
public static SamplingResult getSamplingResult(final Relation<?> rel) {
 Collection<SamplingResult> selections = ResultUtil.filterResults(rel.getHierarchy(), rel, SamplingResult.class);
 if(selections.size() == 0) {
  final SamplingResult newsam = new SamplingResult(rel);
  addChildResult(rel, newsam);
  return newsam;
 }
 return selections.iterator().next();
}

代码示例来源：origin: elki-project/elki

/**
 * Inner run method. This returns a double store, and is used by
 * {@link de.lmu.ifi.dbs.elki.index.preprocessed.knn.KNNJoinMaterializeKNNPreprocessor}
 *
 * @param relation Data relation
 * @param ids Object IDs
 * @return Data store
 */
public WritableDataStore<KNNList> run(Relation<V> relation, DBIDs ids) {
 if(!(getDistanceFunction() instanceof SpatialPrimitiveDistanceFunction)) {
  throw new IllegalStateException("Distance Function must be an instance of " + SpatialPrimitiveDistanceFunction.class.getName());
 }
 Collection<SpatialIndexTree<N, E>> indexes = ResultUtil.filterResults(relation.getHierarchy(), relation, SpatialIndexTree.class);
 if(indexes.size() != 1) {
  throw new MissingPrerequisitesException("KNNJoin found " + indexes.size() + " spatial indexes, expected exactly one.");
 }
 SpatialIndexTree<N, E> index = indexes.iterator().next();
 return run(index, ids);
}

代码示例来源：origin: elki-project/elki

protected SpatialIndexTree<N, E> getSpatialIndex(Relation<O> relation) {
 SpatialIndexTree<N, E> ret = null;
 for(It<SpatialIndexTree<N, E>> iter = relation.getHierarchy().iterDescendants(relation).filter(SpatialIndexTree.class); iter.valid(); iter.advance()) {
  if(ret != null) {
   throw new IllegalStateException("More than one spatial index found - this is not supported!");
  }
  // FIXME: check we got the right the representation
  ret = (SpatialIndexTree<N, E>) iter.get();
 }
 if(ret == null) {
  throw new IllegalStateException("No spatial index found!");
 }
 return ret;
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-index-rtree

protected SpatialIndexTree<N, E> getSpatialIndex(Relation<O> relation) {
 SpatialIndexTree<N, E> ret = null;
 for(It<SpatialIndexTree<N, E>> iter = relation.getHierarchy().iterDescendants(relation).filter(SpatialIndexTree.class); iter.valid(); iter.advance()) {
  if(ret != null) {
   throw new IllegalStateException("More than one spatial index found - this is not supported!");
  }
  // FIXME: check we got the right the representation
  ret = (SpatialIndexTree<N, E>) iter.get();
 }
 if(ret == null) {
  throw new IllegalStateException("No spatial index found!");
 }
 return ret;
}

代码示例来源：origin: elki-project/elki

/**
 * Do some (limited) type checking, then cast the database into a spatial
 * database.
 *
 * @param relation Database
 * @return Metrical index
 * @throws IllegalStateException when the cast fails.
 */
private MetricalIndexTree<O, N, E> getMetricalIndex(Relation<? extends O> relation) throws IllegalStateException {
 MetricalIndexTree<O, N, E> ret = null;
 for(It<MetricalIndexTree<O, N, E>> iter = relation.getHierarchy().iterDescendants(relation).filter(MetricalIndexTree.class); iter.valid(); iter.advance()) {
  if(ret != null) {
   throw new IllegalStateException("More than one metrical index found - this is not supported!");
  }
  // FIXME: check we got the right the representation
  ret = iter.get();
 }
 if(ret == null) {
  throw new IllegalStateException("No metrical index found!");
 }
 return ret;
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki-index-mtree

/**
 * Do some (limited) type checking, then cast the database into a spatial
 * database.
 *
 * @param relation Database
 * @return Metrical index
 * @throws IllegalStateException when the cast fails.
 */
private MetricalIndexTree<O, N, E> getMetricalIndex(Relation<? extends O> relation) throws IllegalStateException {
 MetricalIndexTree<O, N, E> ret = null;
 for(It<MetricalIndexTree<O, N, E>> iter = relation.getHierarchy().iterDescendants(relation).filter(MetricalIndexTree.class); iter.valid(); iter.advance()) {
  if(ret != null) {
   throw new IllegalStateException("More than one metrical index found - this is not supported!");
  }
  // FIXME: check we got the right the representation
  ret = iter.get();
 }
 if(ret == null) {
  throw new IllegalStateException("No metrical index found!");
 }
 return ret;
}

代码示例来源：origin: elki-project/elki

/**
 * Remove the previous relation.
 *
 * Manually also log index statistics, as we may be removing indexes.
 *
 * @param relation Relation to remove
 */
protected void removePreviousRelation(Relation<?> relation) {
 if(keep) {
  return;
 }
 boolean first = true;
 for(It<Index> it = relation.getHierarchy().iterDescendants(relation).filter(Index.class); it.valid(); it.advance()) {
  if(first) {
   Logging.getLogger(getClass()).statistics("Index statistics when removing initial data relation.");
   first = false;
  }
  it.get().logStatistics();
 }
 ResultUtil.removeRecursive(relation.getHierarchy(), relation);
}

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

throw new IllegalStateException("Distance Function must be an instance of " + SpatialPrimitiveDistanceFunction.class.getName());
Collection<SpatialIndexTree<N, E>> indexes = ResultUtil.filterResults(relation.getHierarchy(), relation, SpatialIndexTree.class);
if(indexes.size() != 1) {
 throw new AbortException("KNNJoin found " + indexes.size() + " spatial indexes, expected exactly one.");

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

MaterializeKNNPreprocessor<O> preproc = new MaterializeKNNPreprocessor<>(relation, distf, lim);
preproc.initialize();
relation.getHierarchy().add(relation, preproc);

代码示例来源：origin: de.lmu.ifi.dbs.elki/elki

DistanceQuery<O> distanceQuery = relation.getDistanceQuery(distanceFunction);
Collection<SpatialIndexTree<N, E>> indexes = ResultUtil.filterResults(relation.getHierarchy(), relation, SpatialIndexTree.class);
if(indexes.size() != 1) {
 throw new AbortException(SpatialApproximationMaterializeKNNPreprocessor.class.getSimpleName() + " found " + indexes.size() + " spatial indexes, expected exactly one.");

代码示例来源：origin: elki-project/elki

MaterializeKNNPreprocessor<O> preproc = new MaterializeKNNPreprocessor<>(relation, distf, lim);
preproc.initialize();
relation.getHierarchy().add(relation, preproc);