public class Object2ObjectSortedMaps
extends java.lang.Object
Collections
Modifier and Type | Class and Description |
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static class |
Object2ObjectSortedMaps.EmptySortedMap<K,V>
An immutable class representing an empty type-specific sorted map.
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static class |
Object2ObjectSortedMaps.Singleton<K,V>
An immutable class representing a type-specific singleton sorted map.
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static class |
Object2ObjectSortedMaps.SynchronizedSortedMap<K,V>
A synchronized wrapper class for sorted maps.
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static class |
Object2ObjectSortedMaps.UnmodifiableSortedMap<K,V>
An unmodifiable wrapper class for sorted maps.
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Modifier and Type | Field and Description |
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static Object2ObjectSortedMaps.EmptySortedMap |
EMPTY_MAP
An empty type-specific sorted map (immutable).
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Modifier and Type | Method and Description |
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static <K> java.util.Comparator<? super java.util.Map.Entry<K,?>> |
entryComparator(java.util.Comparator<K> comparator)
Returns a comparator for entries based on a given comparator on keys.
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static <K,V> Object2ObjectSortedMap<K,V> |
singleton(K key,
V value)
Returns a type-specific immutable sorted map containing only the specified pair.
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static <K,V> Object2ObjectSortedMap<K,V> |
singleton(K key,
V value,
java.util.Comparator<? super K> comparator)
RETURNS a type-specific immutable sorted map containing only the specified pair.
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static <K,V> Object2ObjectSortedMap<K,V> |
synchronize(Object2ObjectSortedMap<K,V> m)
Returns a synchronized type-specific sorted map backed by the given type-specific sorted map.
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static <K,V> Object2ObjectSortedMap<K,V> |
synchronize(Object2ObjectSortedMap<K,V> m,
java.lang.Object sync)
Returns a synchronized type-specific sorted map backed by the given type-specific sorted map, using an assigned object to synchronize.
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static <K,V> Object2ObjectSortedMap<K,V> |
unmodifiable(Object2ObjectSortedMap<K,V> m)
Returns an unmodifiable type-specific sorted map backed by the given type-specific sorted map.
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public static final Object2ObjectSortedMaps.EmptySortedMap EMPTY_MAP
public static <K> java.util.Comparator<? super java.util.Map.Entry<K,?>> entryComparator(java.util.Comparator<K> comparator)
comparator
- a comparator on keys.public static <K,V> Object2ObjectSortedMap<K,V> singleton(K key, V value)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned sorted map.value
- the only value of the returned sorted map.<key,value>
.public static <K,V> Object2ObjectSortedMap<K,V> singleton(K key, V value, java.util.Comparator<? super K> comparator)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned sorted map.value
- the only value of the returned sorted map.comparator
- the comparator to use in the returned sorted map.<key,value>
.public static <K,V> Object2ObjectSortedMap<K,V> synchronize(Object2ObjectSortedMap<K,V> m)
m
- the sorted map to be wrapped in a synchronized sorted map.Collections.synchronizedSortedMap(SortedMap)
public static <K,V> Object2ObjectSortedMap<K,V> synchronize(Object2ObjectSortedMap<K,V> m, java.lang.Object sync)
m
- the sorted map to be wrapped in a synchronized sorted map.sync
- an object that will be used to synchronize the access to the sorted sorted map.Collections.synchronizedSortedMap(SortedMap)
public static <K,V> Object2ObjectSortedMap<K,V> unmodifiable(Object2ObjectSortedMap<K,V> m)
m
- the sorted map to be wrapped in an unmodifiable sorted map.Collections.unmodifiableSortedMap(SortedMap)