java.lang.Object
- java.util.AbstractCollection<E>
- - com.google.common.collect.ImmutableCollection<E>
  - - com.google.common.collect.ImmutableList<E>

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<E>, java.util.Collection<E>, java.util.List<E>, java.util.RandomAccess
```
@GwtCompatible(serializable=true,
               emulated=true)
public abstract class ImmutableList<E>
extends ImmutableCollection<E>
implements java.util.List<E>, java.util.RandomAccess
```
A List whose contents will never change, with many other important properties detailed at ImmutableCollection.
See the Guava User Guide article on immutable collections.

Since:

2.0

Author:

Kevin Bourrillion

See Also:

ImmutableMap, ImmutableSet, Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`ImmutableList.Builder<E>`	A builder for creating immutable list instances, especially `public static final` lists ("constant lists").

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`add(int index, E element)`	Deprecated. Unsupported operation.
`boolean`	`addAll(int index, java.util.Collection<? extends E> newElements)`	Deprecated. Unsupported operation.
`ImmutableList<E>`	`asList()`	Deprecated. There is no reason to use this; it always returns `this`.
`static <E> ImmutableList.Builder<E>`	`builder()`	Returns a new builder.
`static <E> ImmutableList.Builder<E>`	`builderWithExpectedSize(int expectedSize)`	Returns a new builder, expecting the specified number of elements to be added.
`boolean`	`contains(java.lang.Object object)`
`static <E> ImmutableList<E>`	`copyOf(E[] elements)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`copyOf(java.lang.Iterable<? extends E> elements)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`copyOf(java.util.Collection<? extends E> elements)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`copyOf(java.util.Iterator<? extends E> elements)`	Returns an immutable list containing the given elements, in order.
`boolean`	`equals(java.lang.Object obj)`
`void`	`forEach(java.util.function.Consumer<? super E> consumer)`
`int`	`hashCode()`
`int`	`indexOf(java.lang.Object object)`
`UnmodifiableIterator<E>`	`iterator()`	Returns an unmodifiable iterator across the elements in this collection.
`int`	`lastIndexOf(java.lang.Object object)`
`UnmodifiableListIterator<E>`	`listIterator()`
`UnmodifiableListIterator<E>`	`listIterator(int index)`
`static <E> ImmutableList<E>`	`of()`	Returns the empty immutable list.
`static <E> ImmutableList<E>`	`of(E e1)`	Returns an immutable list containing a single element.
`static <E> ImmutableList<E>`	`of(E e1, E e2)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11)`	Returns an immutable list containing the given elements, in order.
`static <E> ImmutableList<E>`	`of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11, E e12, E... others)`	Returns an immutable list containing the given elements, in order.
`E`	`remove(int index)`	Deprecated. Unsupported operation.
`void`	`replaceAll(java.util.function.UnaryOperator<E> operator)`	Deprecated. Unsupported operation.
`ImmutableList<E>`	`reverse()`	Returns a view of this immutable list in reverse order.
`E`	`set(int index, E element)`	Deprecated. Unsupported operation.
`void`	`sort(@Nullable java.util.Comparator<? super E> c)`	Deprecated. Unsupported operation.
`static <E extends java.lang.Comparable<? super E>> ImmutableList<E>`	`sortedCopyOf(java.lang.Iterable<? extends E> elements)`	Returns an immutable list containing the given elements, sorted according to their natural order.
`static <E> ImmutableList<E>`	`sortedCopyOf(java.util.Comparator<? super E> comparator, java.lang.Iterable<? extends E> elements)`	Returns an immutable list containing the given elements, in sorted order relative to the specified comparator.
`java.util.Spliterator<E>`	`spliterator()`
`ImmutableList<E>`	`subList(int fromIndex, int toIndex)`	Returns an immutable list of the elements between the specified `fromIndex`, inclusive, and `toIndex`, exclusive.
`static <E> java.util.stream.Collector<E,?,ImmutableList<E>>`	`toImmutableList()`	Returns a `Collector` that accumulates the input elements into a new `ImmutableList`, in encounter order.

Methods inherited from class com.google.common.collect.ImmutableCollection
add, addAll, clear, remove, removeAll, removeIf, retainAll, toArray, toArray

Methods inherited from class java.util.AbstractCollection
containsAll, isEmpty, size, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray

Methods inherited from interface java.util.List
add, addAll, clear, containsAll, get, isEmpty, remove, removeAll, retainAll, size, toArray, toArray

- Method Detail
  - toImmutableList
```
public static <E> java.util.stream.Collector<E,?,ImmutableList<E>> toImmutableList()
```
    Returns a Collector that accumulates the input elements into a new ImmutableList, in encounter order.
    
    Since:
    
    21.0
  - of
```
public static <E> ImmutableList<E> of()
```
    Returns the empty immutable list. This list behaves and performs comparably to Collections.emptyList(), and is preferable mainly for consistency and maintainability of your code.
    Performance note: the instance returned is a singleton.
  - of
```
public static <E> ImmutableList<E> of(E e1)
```
    Returns an immutable list containing a single element. This list behaves and performs comparably to Collections.singletonList(T), but will not accept a null element. It is preferable mainly for consistency and maintainability of your code.
    
    Throws:
    
    java.lang.NullPointerException - if the element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7,
                                      E e8)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7,
                                      E e8,
                                      E e9)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7,
                                      E e8,
                                      E e9,
                                      E e10)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7,
                                      E e8,
                                      E e9,
                                      E e10,
                                      E e11)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
  - of
```
@SafeVarargs
public static <E> ImmutableList<E> of(E e1,
                                      E e2,
                                      E e3,
                                      E e4,
                                      E e5,
                                      E e6,
                                      E e7,
                                      E e8,
                                      E e9,
                                      E e10,
                                      E e11,
                                      E e12,
                                      E... others)
```
    Returns an immutable list containing the given elements, in order.
    The array others must not be longer than Integer.MAX_VALUE - 12.
    
    Throws:
    
    java.lang.NullPointerException - if any element is null
    
    Since:
    
    3.0 (source-compatible since 2.0)
  - copyOf
```
public static <E> ImmutableList<E> copyOf(java.lang.Iterable<? extends E> elements)
```
    Returns an immutable list containing the given elements, in order. If elements is a Collection, this method behaves exactly as copyOf(Collection); otherwise, it behaves exactly as copyOf(elements.iterator().
    
    Throws:
    
    java.lang.NullPointerException - if elements contains a null element
  - copyOf
```
public static <E> ImmutableList<E> copyOf(java.util.Collection<? extends E> elements)
```
    Returns an immutable list containing the given elements, in order.
    Despite the method name, this method attempts to avoid actually copying the data when it is safe to do so. The exact circumstances under which a copy will or will not be performed are undocumented and subject to change.
    Note that if list is a List<String>, then ImmutableList.copyOf(list) returns an ImmutableList<String> containing each of the strings in list, while ImmutableList.of(list) returns an ImmutableList<List<String>> containing one element (the given list itself).
    This method is safe to use even when elements is a synchronized or concurrent collection that is currently being modified by another thread.
    
    Throws:
    
    java.lang.NullPointerException - if elements contains a null element
  - copyOf
```
public static <E> ImmutableList<E> copyOf(java.util.Iterator<? extends E> elements)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if elements contains a null element
  - copyOf
```
public static <E> ImmutableList<E> copyOf(E[] elements)
```
    Returns an immutable list containing the given elements, in order.
    
    Throws:
    
    java.lang.NullPointerException - if elements contains a null element
    
    Since:
    
    3.0
  - sortedCopyOf
```
public static <E extends java.lang.Comparable<? super E>> ImmutableList<E> sortedCopyOf(java.lang.Iterable<? extends E> elements)
```
    Returns an immutable list containing the given elements, sorted according to their natural order. The sorting algorithm used is stable, so elements that compare as equal will stay in the order in which they appear in the input.
    If your data has no duplicates, or you wish to deduplicate elements, use ImmutableSortedSet.copyOf(elements); if you want a List you can use its asList() view.
    Java 8+ users: If you want to convert a Stream to a sorted ImmutableList, use stream.sorted().collect(toImmutableList()).
    
    Throws:
    
    java.lang.NullPointerException - if any element in the input is null
    
    Since:
    
    21.0
  - sortedCopyOf
```
public static <E> ImmutableList<E> sortedCopyOf(java.util.Comparator<? super E> comparator,
                                                java.lang.Iterable<? extends E> elements)
```
    Returns an immutable list containing the given elements, in sorted order relative to the specified comparator. The sorting algorithm used is stable, so elements that compare as equal will stay in the order in which they appear in the input.
    If your data has no duplicates, or you wish to deduplicate elements, use ImmutableSortedSet.copyOf(comparator, elements); if you want a List you can use its asList() view.
    Java 8+ users: If you want to convert a Stream to a sorted ImmutableList, use stream.sorted(comparator).collect(toImmutableList()).
    
    Throws:
    
    java.lang.NullPointerException - if any element in the input is null
    
    Since:
    
    21.0
  - iterator
```
public UnmodifiableIterator<E> iterator()
```
    Description copied from class: ImmutableCollection
    
    Returns an unmodifiable iterator across the elements in this collection.
    
    Specified by:
    
    iterator in interface java.util.Collection<E>
    
    Specified by:
    
    iterator in interface java.lang.Iterable<E>
    
    Specified by:
    
    iterator in interface java.util.List<E>
    
    Specified by:
    
    iterator in class ImmutableCollection<E>
  - listIterator
```
public UnmodifiableListIterator<E> listIterator()
```
    Specified by:
    
    listIterator in interface java.util.List<E>
  - listIterator
```
public UnmodifiableListIterator<E> listIterator(int index)
```
    Specified by:
    
    listIterator in interface java.util.List<E>
  - forEach
```
public void forEach(java.util.function.Consumer<? super E> consumer)
```
    Specified by:
    
    forEach in interface java.lang.Iterable<E>
  - indexOf
```
public int indexOf(@CheckForNull
                   java.lang.Object object)
```
    Specified by:
    
    indexOf in interface java.util.List<E>
  - lastIndexOf
```
public int lastIndexOf(@CheckForNull
                       java.lang.Object object)
```
    Specified by:
    
    lastIndexOf in interface java.util.List<E>
  - contains
```
public boolean contains(@CheckForNull
                        java.lang.Object object)
```
    Specified by:
    
    contains in interface java.util.Collection<E>
    
    Specified by:
    
    contains in interface java.util.List<E>
    
    Specified by:
    
    contains in class ImmutableCollection<E>
  - subList
```
public ImmutableList<E> subList(int fromIndex,
                                int toIndex)
```
    Returns an immutable list of the elements between the specified fromIndex, inclusive, and toIndex, exclusive. (If fromIndex and toIndex are equal, the empty immutable list is returned.)
    Note: in almost all circumstances, the returned ImmutableList retains a strong reference to this, which may prevent the original list from being garbage collected. If you want the original list to be eligible for garbage collection, you should create and use a copy of the sub list (e.g., ImmutableList.copyOf(originalList.subList(...))).
    
    Specified by:
    
    subList in interface java.util.List<E>
  - addAll
```
@CanIgnoreReturnValue
@Deprecated
public final boolean addAll(int index,
                            java.util.Collection<? extends E> newElements)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    addAll in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - set
```
@CanIgnoreReturnValue
@Deprecated
public final E set(int index,
                   E element)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    set in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - add
```
@Deprecated
public final void add(int index,
                      E element)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    add in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - remove
```
@CanIgnoreReturnValue
@Deprecated
public final E remove(int index)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    remove in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - replaceAll
```
@Deprecated
public final void replaceAll(java.util.function.UnaryOperator<E> operator)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    replaceAll in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - sort
```
@Deprecated
public final void sort(@Nullable java.util.Comparator<? super E> c)
```
    Deprecated.
    Unsupported operation.
    
    Guaranteed to throw an exception and leave the list unmodified.
    
    Specified by:
    
    sort in interface java.util.List<E>
    
    Throws:
    
    java.lang.UnsupportedOperationException - always
  - asList
```
@InlineMe(replacement="this")
@Deprecated
public final ImmutableList<E> asList()
```
    Deprecated.
    There is no reason to use this; it always returns this.
    
    Returns this list instance.
    
    Overrides:
    
    asList in class ImmutableCollection<E>
    
    Since:
    
    2.0
  - spliterator
```
public java.util.Spliterator<E> spliterator()
```
    Specified by:
    
    spliterator in interface java.util.Collection<E>
    
    Specified by:
    
    spliterator in interface java.lang.Iterable<E>
    
    Specified by:
    
    spliterator in interface java.util.List<E>
    
    Overrides:
    
    spliterator in class ImmutableCollection<E>
  - reverse
```
public ImmutableList<E> reverse()
```
    Returns a view of this immutable list in reverse order. For example, ImmutableList.of(1, 2, 3).reverse() is equivalent to ImmutableList.of(3, 2, 1).
    
    Returns:
    
    a view of this immutable list in reverse order
    
    Since:
    
    7.0
  - equals
```
public boolean equals(@CheckForNull
                      java.lang.Object obj)
```
    Specified by:
    
    equals in interface java.util.Collection<E>
    
    Specified by:
    
    equals in interface java.util.List<E>
    
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface java.util.Collection<E>
    
    Specified by:
    
    hashCode in interface java.util.List<E>
    
    Overrides:
    
    hashCode in class java.lang.Object
  - builder
```
public static <E> ImmutableList.Builder<E> builder()
```
    Returns a new builder. The generated builder is equivalent to the builder created by the ImmutableList.Builder constructor.
  - builderWithExpectedSize
```
public static <E> ImmutableList.Builder<E> builderWithExpectedSize(int expectedSize)
```
    Returns a new builder, expecting the specified number of elements to be added.
    If expectedSize is exactly the number of elements added to the builder before ImmutableList.Builder.build() is called, the builder is likely to perform better than an unsized builder() would have.
    It is not specified if any performance benefits apply if expectedSize is close to, but not exactly, the number of elements added to the builder.
    
    Since:
    
    23.1

Class ImmutableList<E>

Nested Class Summary

Method Summary

Methods inherited from class com.google.common.collect.ImmutableCollection

Methods inherited from class java.util.AbstractCollection

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Collection

Methods inherited from interface java.util.List

Method Detail

toImmutableList

of

of

of

of

of

of

of

of

of

of

of

of

of

copyOf

copyOf

copyOf

copyOf

sortedCopyOf

sortedCopyOf

iterator

listIterator

listIterator

forEach

indexOf

lastIndexOf

contains

subList

addAll

set

add

remove

replaceAll

sort

asList

spliterator

reverse

equals

hashCode

builder

builderWithExpectedSize