de.lmu.ifi.dbs.elki.result

Class ResultUtil

java.lang.Object

de.lmu.ifi.dbs.elki.result.ResultUtil

public final class ResultUtil
extends java.lang.Object

Utilities for handling result objects

Since:

0.2

Author:

Erich Schubert

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ResultUtil() Private constructor.

Method Summary

Modifier and Type	Method and Description
static void	addChildResult(HierarchicalResult parent, Result child) Add a child result.
static <C extends Result> java.util.ArrayList<C>	filterResults(ResultHierarchy hier, java.lang.Class<? super C> restrictionClass) Return only results of the given restriction class
static <C extends Result> java.util.ArrayList<C>	filterResults(ResultHierarchy hier, Result r, java.lang.Class<? super C> restrictionClass) Return only results of the given restriction class
static Database	findDatabase(ResultHierarchy hier) Find the first database result in the tree.
static Database	findDatabase(ResultHierarchy hier, Result baseResult) Find the first database result in the tree.
static java.util.List<CollectionResult<?>>	getCollectionResults(Result r) Collect all collection results from a Result
static java.util.List<IterableResult<?>>	getIterableResults(Result r) Return all Iterable results
static java.util.List<OrderingResult>	getOrderingResults(Result r) Collect all ordering results from a Result
static java.util.List<Relation<?>>	getRelations(Result r) Collect all Annotation results from a Result
static void	removeRecursive(ResultHierarchy hierarchy, Result child) Recursively remove a result and its children.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultUtil

private ResultUtil()

Private constructor. Static methods only.

Method Detail

getRelations

public static java.util.List<Relation<?>> getRelations(Result r)

Collect all Annotation results from a Result

Parameters:

r - Result

Returns:

List of all annotation results

getOrderingResults

public static java.util.List<OrderingResult> getOrderingResults(Result r)

Collect all ordering results from a Result

Parameters:

r - Result

Returns:

List of ordering results

getCollectionResults

public static java.util.List<CollectionResult<?>> getCollectionResults(Result r)

Collect all collection results from a Result

Parameters:

r - Result

Returns:

List of collection results

getIterableResults

public static java.util.List<IterableResult<?>> getIterableResults(Result r)

Return all Iterable results

Parameters:

r - Result

Returns:

List of iterable results

filterResults

public static <C extends Result> java.util.ArrayList<C> filterResults(ResultHierarchy hier,
                                                                      Result r,
                                                                      java.lang.Class<? super C> restrictionClass)

Return only results of the given restriction class

Type Parameters:

C - Class type

Parameters:

hier - Result hierarchy

r - Starting position

restrictionClass - Class restriction

Returns:

filtered results list

filterResults

public static <C extends Result> java.util.ArrayList<C> filterResults(ResultHierarchy hier,
                                                                      java.lang.Class<? super C> restrictionClass)

Return only results of the given restriction class

Type Parameters:

C - Class type

Parameters:

hier - Result hierarchy

restrictionClass - Class restriction

Returns:

filtered results list

addChildResult

public static void addChildResult(HierarchicalResult parent,
                                  Result child)

Add a child result.

Parameters:

parent - Parent

child - Child

findDatabase

public static Database findDatabase(ResultHierarchy hier,
                                    Result baseResult)

Find the first database result in the tree.

Parameters:

baseResult - Result tree base.

Returns:

Database

findDatabase

public static Database findDatabase(ResultHierarchy hier)

Find the first database result in the tree.

Parameters:

hier - Result hierarchy.

Returns:

Database

removeRecursive

public static void removeRecursive(ResultHierarchy hierarchy,
                                   Result child)

Recursively remove a result and its children.

Parameters:

hierarchy - Result hierarchy

child - Result to remove