com.google.common.collect

Class ImmutableSortedMultiset.Builder<E>

java.lang.Object

com.google.common.collect.ImmutableCollection.Builder<E>

com.google.common.collect.ImmutableMultiset.Builder<E>

com.google.common.collect.ImmutableSortedMultiset.Builder<E>

Enclosing class:

ImmutableSortedMultiset<E>

public static class ImmutableSortedMultiset.Builder<E>
extends ImmutableMultiset.Builder<E>

A builder for creating immutable multiset instances, especially public static final multisets ("constant multisets"). Example:

 public static final ImmutableSortedMultiset<Bean> BEANS =
     new ImmutableSortedMultiset.Builder<Bean>(colorComparator())
         .addCopies(Bean.COCOA, 4)
         .addCopies(Bean.GARDEN, 6)
         .addCopies(Bean.RED, 8)
         .addCopies(Bean.BLACK_EYED, 10)
         .build();
 

Builder instances can be reused; it is safe to call build() multiple times to build multiple multisets in series.

Since:

12.0

Constructor Summary

Constructors

Constructor and Description
Builder(Comparator<? super E> comparator) Creates a new builder.

Method Summary

Modifier and Type	Method and Description
ImmutableSortedMultiset.Builder<E>	add(E... elements) Adds each element of elements to the ImmutableSortedMultiset.
ImmutableSortedMultiset.Builder<E>	add(E element) Adds element to the ImmutableSortedMultiset.
ImmutableSortedMultiset.Builder<E>	addAll(Iterable<? extends E> elements) Adds each element of elements to the ImmutableSortedMultiset.
ImmutableSortedMultiset.Builder<E>	addAll(Iterator<? extends E> elements) Adds each element of elements to the ImmutableSortedMultiset.
ImmutableSortedMultiset.Builder<E>	addCopies(E element, int occurrences) Adds a number of occurrences of an element to this ImmutableSortedMultiset.
ImmutableSortedMultiset<E>	build() Returns a newly-created ImmutableSortedMultiset based on the contents of the Builder.
ImmutableSortedMultiset.Builder<E>	setCount(E element, int count) Adds or removes the necessary occurrences of an element such that the element attains the desired count.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(Comparator<? super E> comparator)

Creates a new builder. The returned builder is equivalent to the builder generated by ImmutableSortedMultiset.orderedBy(Comparator).

Method Detail

add

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> add(E element)

Adds element to the ImmutableSortedMultiset.

Overrides:

add in class ImmutableMultiset.Builder<E>

Parameters:

element - the element to add

Returns:

this Builder object

Throws:

NullPointerException - if element is null

addCopies

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> addCopies(E element,
                                                                          int occurrences)

Adds a number of occurrences of an element to this ImmutableSortedMultiset.

Overrides:

addCopies in class ImmutableMultiset.Builder<E>

Parameters:

element - the element to add

occurrences - the number of occurrences of the element to add. May be zero, in which case no change will be made.

Returns:

this Builder object

Throws:

NullPointerException - if element is null

IllegalArgumentException - if occurrences is negative, or if this operation would result in more than Integer.MAX_VALUE occurrences of the element

setCount

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> setCount(E element,
                                                                         int count)

Adds or removes the necessary occurrences of an element such that the element attains the desired count.

Overrides:

setCount in class ImmutableMultiset.Builder<E>

Parameters:

element - the element to add or remove occurrences of

count - the desired count of the element in this multiset

Returns:

this Builder object

Throws:

NullPointerException - if element is null

IllegalArgumentException - if count is negative

add

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> add(E... elements)

Adds each element of elements to the ImmutableSortedMultiset.

Overrides:

add in class ImmutableMultiset.Builder<E>

Parameters:

elements - the elements to add

Returns:

this Builder object

Throws:

NullPointerException - if elements is null or contains a null element

addAll

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> addAll(Iterable<? extends E> elements)

Adds each element of elements to the ImmutableSortedMultiset.

Overrides:

addAll in class ImmutableMultiset.Builder<E>

Parameters:

elements - the Iterable to add to the ImmutableSortedMultiset

Returns:

this Builder object

Throws:

NullPointerException - if elements is null or contains a null element

addAll

@CanIgnoreReturnValue
public ImmutableSortedMultiset.Builder<E> addAll(Iterator<? extends E> elements)

Adds each element of elements to the ImmutableSortedMultiset.

Overrides:

addAll in class ImmutableMultiset.Builder<E>

Parameters:

elements - the elements to add to the ImmutableSortedMultiset

Returns:

this Builder object

Throws:

NullPointerException - if elements is null or contains a null element

build

public ImmutableSortedMultiset<E> build()

Returns a newly-created ImmutableSortedMultiset based on the contents of the Builder.

Overrides:

build in class ImmutableMultiset.Builder<E>