public final class CharSets
extends java.lang.Object
Collections
Modifier and Type | Class and Description |
---|---|
static class |
CharSets.EmptySet
An immutable class representing the empty set and implementing a type-specific set interface.
|
static class |
CharSets.Singleton
An immutable class representing a type-specific singleton set.
|
static class |
CharSets.SynchronizedSet
A synchronized wrapper class for sets.
|
static class |
CharSets.UnmodifiableSet
An unmodifiable wrapper class for sets.
|
Modifier and Type | Field and Description |
---|---|
static CharSets.EmptySet |
EMPTY_SET
An empty set (immutable).
|
Modifier and Type | Method and Description |
---|---|
static CharSet |
emptySet()
Returns an empty set (immutable).
|
static CharSet |
from(char from)
Returns an unmodifiable type-specific set containing elements greater than or equal to a given element.
|
static CharSet |
fromTo(char from,
char to)
Returns an unmodifiable type-specific set containing elements in the given range.
|
static CharSet |
singleton(char element)
Returns a type-specific immutable set containing only the specified element.
|
static CharSet |
singleton(java.lang.Character element)
Returns a type-specific immutable set containing only the specified element.
|
static CharSet |
synchronize(CharSet s)
Returns a synchronized type-specific set backed by the given type-specific set.
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static CharSet |
synchronize(CharSet s,
java.lang.Object sync)
Returns a synchronized type-specific set backed by the given type-specific set, using an assigned object to synchronize.
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static CharSet |
to(char to)
Returns an unmodifiable type-specific set containing elements smaller than a given element.
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static CharSet |
unmodifiable(CharSet s)
Returns an unmodifiable type-specific set backed by the given type-specific set.
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public static final CharSets.EmptySet EMPTY_SET
public static CharSet emptySet()
This method provides a typesafe access to EMPTY_SET
.
public static CharSet singleton(char element)
element
- the only element of the returned set.element
.public static CharSet singleton(java.lang.Character element)
element
- the only element of the returned set.element
.public static CharSet synchronize(CharSet s)
s
- the set to be wrapped in a synchronized set.Collections.synchronizedSet(Set)
public static CharSet synchronize(CharSet s, java.lang.Object sync)
s
- the set to be wrapped in a synchronized set.sync
- an object that will be used to synchronize the access to the set.Collections.synchronizedSet(Set)
public static CharSet unmodifiable(CharSet s)
s
- the set to be wrapped in an unmodifiable set.Collections.unmodifiableSet(Set)
public static CharSet fromTo(char from, char to)
from
- the starting element (lower bound) of the set (inclusive).to
- the ending element (upper bound) of the set (exclusive).public static CharSet from(char from)
from
- the starting element (lower bound) of the set (inclusive).from
.public static CharSet to(char to)
to
- the ending element (upper bound) of the set (exclusive).to
.