Package org.lazywizard.lazylib

Class CollectionUtils

Object

CollectionUtils

public class CollectionUtils
extends Object

Contains methods for working with Collections.

Since:

1.0

Author:

LazyWizard

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CollectionUtils.CollectionFilter<T>	Used with filter(Collection, CollectionUtils.CollectionFilter) to filter out unwanted entries in a Collection.
static class	CollectionUtils.SortEntitiesByDistance	A Comparator that sorts CombatEntityAPIs by distance from the Vector2f passed into the constructor.
static class	CollectionUtils.SortTokensByDistance	A Comparator that sorts SectorEntityTokens by distance the Vector2f passed into the constructor.

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	combinedList(Collection<T>... toCombine)	Returns a combined List from several Collections.
static <T> Set<T>	combinedSet(Collection<T>... toCombine)	Returns a combined Set from several Collections.
static <T> List<T>	filter(Collection<T> toFilter, List<CollectionUtils.CollectionFilter<T>> filters)	Filters a Collection and returns a List containing only the entries that the filters accepted.
static <T> List<T>	filter(Collection<T> toFilter, CollectionUtils.CollectionFilter<T> filter)	Filters a Collection and returns a List containing only the entries that the filter accepted.
static <T> String	implode(Class<? extends Enum> toImplode)	Creates a comma-separated String containing the names of an Enum's entries.
static <T> String	implode(Class<? extends Enum> toImplode, String separator)	Creates a String containing the names of an Enum's entries.
static String	implode(Collection toImplode)	Creates a comma-separated String from a Collection's entries.
static String	implode(Collection toImplode, String separator)	Combines and separates a Collection of Strings.

Methods inherited from class Object

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

Method Details

implode

public static String implode(Collection toImplode,
 String separator)

Combines and separates a Collection of Strings. Useful for comma-separated lists.

Parameters:

toImplode - A Collection whose contents should be combined into one String.

separator - The separator character to split toImplode with.

Returns:

A single String consisting of toImplode's values separated with separator.

Since:

1.0

implode

public static String implode(Collection toImplode)

Creates a comma-separated String from a Collection's entries.

Parameters:

toImplode - A Collection to be combined (using each entry's toString method).

Returns:

A single String consisting of toImplode's values separated with commas.

Since:

1.0

See Also:

• implode(java.util.Collection, java.lang.String)

implode

public static <T> String implode(Class<? extends Enum> toImplode,
 String separator)

Creates a String containing the names of an Enum's entries.

Parameters:

toImplode - An Enum whose contents should be combined into one String.

separator - The separator character to split toImplode with.

Returns:

A single String consisting of toImplode's values separated with separator.

Since:

2.3

implode

public static <T> String implode(Class<? extends Enum> toImplode)

Creates a comma-separated String containing the names of an Enum's entries.

Parameters:

toImplode - An Enum to be combined (using each entry's name() method).

Returns:

A single String consisting of toImplode's values separated with commas.

Since:

2.3

See Also:

• implode(Class, String)

combinedList

@SafeVarargs
public static <T> List<T> combinedList(Collection<T>... toCombine)

Returns a combined List from several Collections.

Parameters:

toCombine - The Collection of elements to combine.

Returns:

A new ArrayList containing the combined contents of toCombine.

Since:

2.1

combinedSet

@SafeVarargs
public static <T> Set<T> combinedSet(Collection<T>... toCombine)

Returns a combined Set from several Collections.

Parameters:

toCombine - The Collection of elements to combine.

Returns:

A new HashSet containing the combined contents of toCombine. The capacity will be the total size of all source Collections.

Since:

2.1

filter

public static <T> List<T> filter(Collection<T> toFilter,
 CollectionUtils.CollectionFilter<T> filter)

Filters a Collection and returns a List containing only the entries that the filter accepted.

Parameters:

toFilter - The Collection to filter.

filter - A CollectionUtils.CollectionFilter that will be used to filter toFilter.

Returns:

A List containing only the entries of toFilter that passed filter's accept() method.

Since:

1.7

filter

public static <T> List<T> filter(Collection<T> toFilter,
 List<CollectionUtils.CollectionFilter<T>> filters)

Filters a Collection and returns a List containing only the entries that the filters accepted.

Parameters:

toFilter - The Collection to filter.

filters - A List of CollectionUtils.CollectionFilters that will be used to filter toFilter.

Returns:

A List containing only the entries of toFilter that passed filters' accept() methods.

Since:

1.7

See Also:

• filter(Collection, CollectionUtils.CollectionFilter)