com.google.common.collect

Class ContiguousSet<C extends Comparable>

java.lang.Object

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

com.google.common.collect.ImmutableSet<E>

com.google.common.collect.ImmutableSortedSet<C>

com.google.common.collect.ContiguousSet<C>

All Implemented Interfaces:

Serializable, Iterable<C>, Collection<C>, NavigableSet<C>, Set<C>, SortedSet<C>

@Beta
@GwtCompatible(emulated=true)
public abstract class ContiguousSet<C extends Comparable>
extends ImmutableSortedSet<C>

A sorted set of contiguous values in a given DiscreteDomain.

Warning: Be extremely careful what you do with conceptually large instances (such as ContiguousSet.create(Range.greaterThan(0), DiscreteDomains.integers()). Certain operations on such a set can be performed efficiently, but others (such as Set.hashCode() or Collections.frequency(java.util.Collection<?>, java.lang.Object)) can cause major performance problems.

Since:

10.0

Author:

Gregory Kick

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ImmutableSortedSet

ImmutableSortedSet.Builder<E>

Method Summary

Methods

Modifier and Type	Method and Description
static <E> ImmutableSortedSet.Builder<E>	builder() Deprecated. Use ImmutableSortedSet.naturalOrder(), which offers better type-safety.
static <C extends Comparable> ContiguousSet<C>	create(Range<C> range, DiscreteDomain<C> domain) Returns a ContiguousSet containing the same values in the given domain contained by the range.
ContiguousSet<C>	headSet(C toElement)
ContiguousSet<C>	headSet(C toElement, boolean inclusive)
abstract ContiguousSet<C>	intersection(ContiguousSet<C> other) Returns the set of values that are contained in both this set and the other.
abstract Range<C>	range() Returns a range, closed on both ends, whose endpoints are the minimum and maximum values contained in this set.
abstract Range<C>	range(BoundType lowerBoundType, BoundType upperBoundType) Returns the minimal range with the given boundary types for which all values in this set are contained within the range.
ContiguousSet<C>	subSet(C fromElement, boolean fromInclusive, C toElement, boolean toInclusive)
ContiguousSet<C>	subSet(C fromElement, C toElement)
ContiguousSet<C>	tailSet(C fromElement)
ContiguousSet<C>	tailSet(C fromElement, boolean inclusive)
String	toString() Returns a short-hand representation of the contents such as "[1..100]".

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

ceiling, comparator, copyOf, copyOf, copyOf, copyOf, copyOf, copyOf, copyOf, copyOfSorted, descendingIterator, descendingSet, first, floor, higher, iterator, last, lower, naturalOrder, of, of, of, of, of, of, of, orderedBy, pollFirst, pollLast, reverseOrder

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

equals, hashCode

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

add, addAll, asList, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

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

Method Detail

create

public static <C extends Comparable> ContiguousSet<C> create(Range<C> range,
                                             DiscreteDomain<C> domain)

Returns a ContiguousSet containing the same values in the given domain contained by the range.

Throws:

IllegalArgumentException - if neither range nor the domain has a lower bound, or if neither has an upper bound

Since:

13.0

headSet

public ContiguousSet<C> headSet(C toElement)

Description copied from class: ImmutableSortedSet

This method returns a serializable ImmutableSortedSet.

The SortedSet.headSet(E) documentation states that a subset of a subset throws an IllegalArgumentException if passed a toElement greater than an earlier toElement. However, this method doesn't throw an exception in that situation, but instead keeps the original toElement.

Specified by:

headSet in interface NavigableSet<C extends Comparable>

Specified by:

headSet in interface SortedSet<C extends Comparable>

Overrides:

headSet in class ImmutableSortedSet<C extends Comparable>

headSet

@GwtIncompatible(value="NavigableSet")
public ContiguousSet<C> headSet(C toElement,
                                            boolean inclusive)

Specified by:

headSet in interface NavigableSet<C extends Comparable>

Overrides:

headSet in class ImmutableSortedSet<C extends Comparable>

Since:

12.0

subSet

public ContiguousSet<C> subSet(C fromElement,
                      C toElement)

Description copied from class: ImmutableSortedSet

This method returns a serializable ImmutableSortedSet.

The SortedSet.subSet(E, E) documentation states that a subset of a subset throws an IllegalArgumentException if passed a fromElement smaller than an earlier fromElement. However, this method doesn't throw an exception in that situation, but instead keeps the original fromElement. Similarly, this method keeps the original toElement, instead of throwing an exception, if passed a toElement greater than an earlier toElement.

Specified by:

subSet in interface NavigableSet<C extends Comparable>

Specified by:

subSet in interface SortedSet<C extends Comparable>

Overrides:

subSet in class ImmutableSortedSet<C extends Comparable>

subSet

@GwtIncompatible(value="NavigableSet")
public ContiguousSet<C> subSet(C fromElement,
                                           boolean fromInclusive,
                                           C toElement,
                                           boolean toInclusive)

Specified by:

subSet in interface NavigableSet<C extends Comparable>

Overrides:

subSet in class ImmutableSortedSet<C extends Comparable>

Since:

12.0

tailSet

public ContiguousSet<C> tailSet(C fromElement)

Description copied from class: ImmutableSortedSet

This method returns a serializable ImmutableSortedSet.

The SortedSet.tailSet(E) documentation states that a subset of a subset throws an IllegalArgumentException if passed a fromElement smaller than an earlier fromElement. However, this method doesn't throw an exception in that situation, but instead keeps the original fromElement.

Specified by:

tailSet in interface NavigableSet<C extends Comparable>

Specified by:

tailSet in interface SortedSet<C extends Comparable>

Overrides:

tailSet in class ImmutableSortedSet<C extends Comparable>

tailSet

@GwtIncompatible(value="NavigableSet")
public ContiguousSet<C> tailSet(C fromElement,
                                            boolean inclusive)

Specified by:

tailSet in interface NavigableSet<C extends Comparable>

Overrides:

tailSet in class ImmutableSortedSet<C extends Comparable>

Since:

12.0

intersection

public abstract ContiguousSet<C> intersection(ContiguousSet<C> other)

Returns the set of values that are contained in both this set and the other.

This method should always be used instead of Sets.intersection(java.util.Set<E>, java.util.Set<?>) for ContiguousSet instances.

range

public abstract Range<C> range()

Returns a range, closed on both ends, whose endpoints are the minimum and maximum values contained in this set. This is equivalent to range(CLOSED, CLOSED).

Throws:

NoSuchElementException - if this set is empty

range

public abstract Range<C> range(BoundType lowerBoundType,
             BoundType upperBoundType)

Returns the minimal range with the given boundary types for which all values in this set are contained within the range.

Note that this method will return ranges with unbounded endpoints if BoundType.OPEN is requested for a domain minimum or maximum. For example, if set was created from the range [1..Integer.MAX_VALUE] then set.range(CLOSED, OPEN) must return [1..∞).

Throws:

NoSuchElementException - if this set is empty

toString

public String toString()

Returns a short-hand representation of the contents such as "[1..100]".

Overrides:

toString in class ImmutableCollection<C extends Comparable>

builder

@Deprecated
public static <E> ImmutableSortedSet.Builder<E> builder()

Deprecated. Use ImmutableSortedSet.naturalOrder(), which offers better type-safety.

Not supported. Use ImmutableSortedSet.naturalOrder(), which offers better type-safety, instead. This method exists only to hide ImmutableSet.builder() from consumers of ImmutableSortedSet.

Throws:

UnsupportedOperationException - always