Package com.helger.commons.collection.impl

Class CommonsHashSet<ELEMENTTYPE>

java.lang.Object

java.util.AbstractCollection<ELEMENTTYPE>

java.util.AbstractSet<ELEMENTTYPE>

java.util.HashSet<ELEMENTTYPE>

com.helger.commons.collection.impl.CommonsHashSet<ELEMENTTYPE>

Type Parameters:

ELEMENTTYPE - Set element type

All Implemented Interfaces:

ICommonsCollection<ELEMENTTYPE>, ICommonsIterable<ELEMENTTYPE>, ICommonsSet<ELEMENTTYPE>, ICloneable<ICommonsSet<ELEMENTTYPE>>, IHasSize, Serializable, Cloneable, Iterable<ELEMENTTYPE>, Collection<ELEMENTTYPE>, Set<ELEMENTTYPE>

public class CommonsHashSet<ELEMENTTYPE>
extends HashSet<ELEMENTTYPE>
implements ICommonsSet<ELEMENTTYPE>

A special HashSet implementation based on ICommonsSet.

Author:

Philip Helger

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CommonsHashSet()
CommonsHashSet(int nInitialCapacity)
CommonsHashSet(int nInitialCapacity, float fLoadFactor)
CommonsHashSet(ELEMENTTYPE aValue)
CommonsHashSet(ELEMENTTYPE... aValues)
CommonsHashSet(Iterable<? extends ELEMENTTYPE> aIterable)
CommonsHashSet(Iterable<? extends SRCTYPE> aValues, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)
CommonsHashSet(Collection<? extends ELEMENTTYPE> aCont)
CommonsHashSet(Collection<? extends SRCTYPE> aValues, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)
CommonsHashSet(Enumeration<? extends ELEMENTTYPE> aIterable)
CommonsHashSet(SRCTYPE[] aValues, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

Method Summary

Modifier and Type	Method	Description
static <ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(ELEMENTTYPE[] aValues, Predicate<? super ELEMENTTYPE> aFilter)	Create a new hash set that contains a subset of the provided array. Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.
static <ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(Iterable<? extends ELEMENTTYPE> aValues, Predicate<? super ELEMENTTYPE> aFilter)	Create a new hash set that contains a subset of the provided iterable. Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.
static <SRCTYPE, ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(Iterable<? extends SRCTYPE> aValues, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper, Predicate<? super ELEMENTTYPE> aFilter)	Create a new hash set that contains a subset of the provided iterable.
static <SRCTYPE, ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(Iterable<? extends SRCTYPE> aValues, Predicate<? super SRCTYPE> aFilter, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)	Create a new hash set that contains a subset of the provided iterable.
static <SRCTYPE, ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(SRCTYPE[] aValues, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper, Predicate<? super ELEMENTTYPE> aFilter)	Create a new hash set that contains a subset of the provided array.
static <SRCTYPE, ELEMENTTYPE> CommonsHashSet<ELEMENTTYPE>	createFiltered(SRCTYPE[] aValues, Predicate<? super SRCTYPE> aFilter, Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)	Create a new hash set that contains a subset of the provided array.
<T> CommonsHashSet<T>	createInstance()	Create a new empty set.
CommonsHashSet<ELEMENTTYPE>	getClone()

Methods inherited from class java.util.HashSet

add, clear, clone, contains, isEmpty, iterator, newHashSet, remove, size, spliterator, toArray, toArray

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface com.helger.commons.collection.impl.ICommonsCollection

addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAll, addAllMapped, addAllMapped, addAllMapped, addAllMapped, addAllMapped, addAllMapped, addIf, addIfNotNull, addObject, getAtIndex, getAtIndex, getAtIndex, getAtIndex, getAtIndexMapped, getAtIndexMapped, getAtIndexMapped, getAtIndexMapped, getCopyAsList, getCount, getSorted, iterator2, removeAll, removeObject, set, setAll, setAll, setAllMapped, setAllMapped

Methods inherited from interface com.helger.commons.collection.impl.ICommonsIterable

containsAny, containsNone, containsOnly, findAll, findAllInstanceOf, findAllMapped, findAllMapped, findAllMapped, findFirst, findFirst, findFirstIndex, findFirstMapped, findFirstMapped, findLastIndex, forEachBreakable, forEachByIndex, forEachThrowing, getCount

Methods inherited from interface com.helger.commons.collection.impl.ICommonsSet

getAll, getAllInstanceOf, getAllMapped, getAllMapped, getAsUnmodifiable, replace

Methods inherited from interface com.helger.commons.lang.IHasSize

isEmpty, isNotEmpty, size

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Constructor Details

CommonsHashSet

public CommonsHashSet()

CommonsHashSet

public CommonsHashSet(int nInitialCapacity)

CommonsHashSet

public CommonsHashSet(int nInitialCapacity,
 @Nonnegative
 float fLoadFactor)

CommonsHashSet

public CommonsHashSet(@Nullable
 Collection<? extends ELEMENTTYPE> aCont)

CommonsHashSet

public CommonsHashSet(@Nullable
 Iterable<? extends ELEMENTTYPE> aIterable)

CommonsHashSet

public CommonsHashSet(@Nullable
 Enumeration<? extends ELEMENTTYPE> aIterable)

CommonsHashSet

public CommonsHashSet(@Nullable
 Collection<? extends SRCTYPE> aValues,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

CommonsHashSet

public CommonsHashSet(@Nullable
 Iterable<? extends SRCTYPE> aValues,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

CommonsHashSet

public CommonsHashSet(@Nullable
 ELEMENTTYPE aValue)

CommonsHashSet

@SafeVarargs
public CommonsHashSet(@Nullable
 ELEMENTTYPE... aValues)

CommonsHashSet

public CommonsHashSet(@Nullable
 SRCTYPE[] aValues,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

Method Details

createInstance

@Nonnull
@ReturnsMutableCopy
public <T> CommonsHashSet<T> createInstance()

Description copied from interface: ICommonsSet

Create a new empty set. Overwrite this if you don't want to use CommonsHashSet.

Specified by:

createInstance in interface ICommonsSet<ELEMENTTYPE>

Type Parameters:

T - Set element type

Returns:

A new empty set. Never null.

getClone

@Nonnull
@ReturnsMutableCopy
public CommonsHashSet<ELEMENTTYPE> getClone()

Specified by:

getClone in interface ICloneable<ELEMENTTYPE>

Returns:

A 100% deep-copy of the implementing class.

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 Iterable<? extends ELEMENTTYPE> aValues,
 @Nullable
 Predicate<? super ELEMENTTYPE> aFilter)

Create a new hash set that contains a subset of the provided iterable.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

ELEMENTTYPE - data type to create the list of

Parameters:

aValues - The iterable from which the elements are copied from. May be null.

aFilter - The filter to be applied to check if the element should be added or not.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAll(Iterable, Predicate)

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <SRCTYPE,
ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 Iterable<? extends SRCTYPE> aValues,
 @Nullable
 Predicate<? super SRCTYPE> aFilter,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

Create a new hash set that contains a subset of the provided iterable. This method filters the elements before they are mapped.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

SRCTYPE - source data type

ELEMENTTYPE - final data type of the list

Parameters:

aValues - The iterable from which the elements are copied from. May be null.

aFilter - The filter to be applied to check if the element should be added or not.

aMapper - The mapping function to be executed for all provided elements. May not be null.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAllMapped(Iterable, Predicate, Function)

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <SRCTYPE,
ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 Iterable<? extends SRCTYPE> aValues,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper,
 @Nullable
 Predicate<? super ELEMENTTYPE> aFilter)

Create a new hash set that contains a subset of the provided iterable. This method maps the elements before they are filtered.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

SRCTYPE - source data type

ELEMENTTYPE - final data type of the list

Parameters:

aValues - The iterable from which the elements are copied from. May be null.

aMapper - The mapping function to be executed for all provided elements. May not be null.

aFilter - The filter to be applied on the mapped element to check if the element should be added or not.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAllMapped(Iterable, Function, Predicate)

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 ELEMENTTYPE[] aValues,
 @Nullable
 Predicate<? super ELEMENTTYPE> aFilter)

Create a new hash set that contains a subset of the provided array.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

ELEMENTTYPE - data type of the list

Parameters:

aValues - The array from which the elements are copied from. May be null.

aFilter - The filter to be applied to check if the element should be added or not.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAll(Object[], Predicate)

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <SRCTYPE,
ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 SRCTYPE[] aValues,
 @Nullable
 Predicate<? super SRCTYPE> aFilter,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper)

Create a new hash set that contains a subset of the provided array. This method filters the elements before they are mapped.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

SRCTYPE - source data type

ELEMENTTYPE - final data type of the list

Parameters:

aValues - The array from which the elements are copied from. May be null.

aFilter - The filter to be applied to check if the element should be added or not.

aMapper - The mapping function to be executed for all provided elements. May not be null.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAllMapped(Object[], Predicate, Function)

createFiltered

@Nonnull
@ReturnsMutableCopy
public static <SRCTYPE,
ELEMENTTYPE>
CommonsHashSet<ELEMENTTYPE> createFiltered(@Nullable
 SRCTYPE[] aValues,
 @Nonnull
 Function<? super SRCTYPE,? extends ELEMENTTYPE> aMapper,
 @Nullable
 Predicate<? super ELEMENTTYPE> aFilter)

Create a new hash set that contains a subset of the provided array. This method maps the elements before they are filtered.
Note: this method is a static factory method because the compiler sometimes cannot deduce between Predicate and Function and the mapping case occurs more often.

Type Parameters:

SRCTYPE - source data type

ELEMENTTYPE - final data type of the list

Parameters:

aValues - The array from which the elements are copied from. May be null.

aMapper - The mapping function to be executed for all provided elements. May not be null.

aFilter - The filter to be applied on the mapped element to check if the element should be added or not.

Returns:

The created hash set. Never null.

Since:

10.0.0

See Also:

• ICommonsCollection.addAllMapped(Iterable, Function, Predicate)