RangeMap (Guava: Google Core Libraries for Java 23.5-jre API)

All Known Implementing Classes:

ImmutableRangeMap, TreeRangeMap
```
@Beta
 @GwtIncompatible
public interface RangeMap<K extends Comparable,V>
```
A mapping from disjoint nonempty ranges to non-null values. Queries look up the value associated with the range (if any) that contains a specified key.
In contrast to RangeSet, no "coalescing" is done of connected ranges, even if they are mapped to the same value.

Since:

14.0

Author:

Louis Wasserman

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`Map<Range<K>,V>`	`asDescendingMapOfRanges()` Returns a view of this range map as an unmodifiable `Map<Range<K>, V>`.
`Map<Range<K>,V>`	`asMapOfRanges()` Returns a view of this range map as an unmodifiable `Map<Range<K>, V>`.
`void`	`clear()` Removes all associations from this range map (optional operation).
`boolean`	`equals(Object o)` Returns `true` if `obj` is another `RangeMap` that has an equivalent `asMapOfRanges()`.
`V`	`get(K key)` Returns the value associated with the specified key, or `null` if there is no such value.
`Map.Entry<Range<K>,V>`	`getEntry(K key)` Returns the range containing this key and its associated value, if such a range is present in the range map, or `null` otherwise.
`int`	`hashCode()` Returns `asMapOfRanges().hashCode()`.
`void`	`put(Range<K> range, V value)` Maps a range to a specified value (optional operation).
`void`	`putAll(RangeMap<K,V> rangeMap)` Puts all the associations from `rangeMap` into this range map (optional operation).
`void`	`putCoalescing(Range<K> range, V value)` Maps a range to a specified value, coalescing this range with any existing ranges with the same value that are connected to this range.
`void`	`remove(Range<K> range)` Removes all associations from this range map in the specified range (optional operation).
`Range<K>`	`span()` Returns the minimal range enclosing the ranges in this `RangeMap`.
`RangeMap<K,V>`	`subRangeMap(Range<K> range)` Returns a view of the part of this range map that intersects with `range`.
`String`	`toString()` Returns a readable string representation of this range map.

- Method Detail
  - get
```
@Nullable
V get(K key)
```
    Returns the value associated with the specified key, or null if there is no such value.
    Specifically, if any range in this range map contains the specified key, the value associated with that range is returned.
  - getEntry
```
@Nullable
Map.Entry<Range<K>,V> getEntry(K key)
```
    Returns the range containing this key and its associated value, if such a range is present in the range map, or null otherwise.
  - span
```
Range<K> span()
```
    Returns the minimal range enclosing the ranges in this RangeMap.
    
    Throws:
    
    NoSuchElementException - if this range map is empty
  - put
```
void put(Range<K> range,
         V value)
```
    Maps a range to a specified value (optional operation).
    Specifically, after a call to put(range, value), if range.contains(k), then get(k) will return value.
    If range is empty, then this is a no-op.
  - putCoalescing
```
void putCoalescing(Range<K> range,
                   V value)
```
    Maps a range to a specified value, coalescing this range with any existing ranges with the same value that are connected to this range.
    The behavior of get(k) after calling this method is identical to the behavior described in put(range, value), however the ranges returned from asMapOfRanges() will be different if there were existing entries which connect to the given range and value.
    Even if the input range is empty, if it is connected on both sides by ranges mapped to the same value those two ranges will be coalesced.
    Note: coalescing requires calling .equals() on any connected values, which may be expensive depending on the value type. Using this method on range maps with large values such as Collection types is discouraged.
    
    Since:
    
    22.0
  - putAll
```
void putAll(RangeMap<K,V> rangeMap)
```
    Puts all the associations from rangeMap into this range map (optional operation).
  - clear
```
void clear()
```
    Removes all associations from this range map (optional operation).
  - remove
```
void remove(Range<K> range)
```
    Removes all associations from this range map in the specified range (optional operation).
    If !range.contains(k), get(k) will return the same result before and after a call to remove(range). If range.contains(k), then after a call to remove(range), get(k) will return null.
  - asMapOfRanges
```
Map<Range<K>,V> asMapOfRanges()
```
    Returns a view of this range map as an unmodifiable Map<Range<K>, V>. Modifications to this range map are guaranteed to read through to the returned Map.
    The returned Map iterates over entries in ascending order of the bounds of the Range entries.
    It is guaranteed that no empty ranges will be in the returned Map.
  - asDescendingMapOfRanges
```
Map<Range<K>,V> asDescendingMapOfRanges()
```
    Returns a view of this range map as an unmodifiable Map<Range<K>, V>. Modifications to this range map are guaranteed to read through to the returned Map.
    The returned Map iterates over entries in descending order of the bounds of the Range entries.
    It is guaranteed that no empty ranges will be in the returned Map.
    
    Since:
    
    19.0
  - subRangeMap
```
RangeMap<K,V> subRangeMap(Range<K> range)
```
    Returns a view of the part of this range map that intersects with range.
    For example, if rangeMap had the entries [1, 5] => "foo", (6, 8) => "bar", (10, ∞) => "baz" then rangeMap.subRangeMap(Range.open(3, 12)) would return a range map with the entries (3, 5] => "foo", (6, 8) => "bar", (10, 12) => "baz".
    The returned range map supports all optional operations that this range map supports, except for asMapOfRanges().iterator().remove().
    The returned range map will throw an IllegalArgumentException on an attempt to insert a range not enclosed by range.
  - equals
```
boolean equals(@Nullable
               Object o)
```
    Returns true if obj is another RangeMap that has an equivalent asMapOfRanges().
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    o - the reference object with which to compare.
    
    Returns:
    
    true if this object is the same as the obj argument; false otherwise.
    
    See Also:
    
    Object.hashCode(), HashMap
  - hashCode
```
int hashCode()
```
    Returns asMapOfRanges().hashCode().
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    a hash code value for this object.
    
    See Also:
    
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)
  - toString
```
String toString()
```
    Returns a readable string representation of this range map.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representation of the object.

Interface RangeMap<K extends Comparable,V>

Method Summary

Method Detail

get

getEntry

span

put

putCoalescing

putAll

clear

remove

asMapOfRanges

asDescendingMapOfRanges

subRangeMap

equals

hashCode

toString