Package org.apache.iceberg.util

Class CharSequenceMap<V>

java.lang.Object

org.apache.iceberg.util.CharSequenceMap<V>

Type Parameters:

V - the type of values

All Implemented Interfaces:

Serializable, Map<CharSequence,V>

public class CharSequenceMap<V>
extends Object
implements Map<CharSequence,V>, Serializable

A map that uses char sequences as keys.

This implementation wraps provided keys into CharSequenceWrapper for consistent hashing and equals behavior. This ensures that objects of different types that represent the same sequence of characters are treated as equal keys in the map.

Note: This map is not designed for concurrent modification by multiple threads. However, it supports safe concurrent reads, assuming there are no concurrent writes.

Note: This map does not support null keys.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Method Summary

Modifier and Type	Method	Description
void	clear()
V	computeIfAbsent(CharSequence key, Supplier<V> valueSupplier)
boolean	containsKey(Object key)
boolean	containsValue(Object value)
static <T> CharSequenceMap<T>	create()
Set<Map.Entry<CharSequence,V>>	entrySet()
boolean	equals(Object other)
V	get(Object key)
int	hashCode()
boolean	isEmpty()
Set<CharSequence>	keySet()
V	put(CharSequence key, V value)
void	putAll(Map<? extends CharSequence,? extends V> otherMap)
V	remove(Object key)
int	size()
String	toString()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Method Details

create

public static <T> CharSequenceMap<T> create()

size

public int size()

Specified by:

size in interface Map<CharSequence,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<CharSequence,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<CharSequence,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<CharSequence,V>

get

public V get(Object key)

Specified by:

get in interface Map<CharSequence,V>

put

public V put(CharSequence key,
 V value)

Specified by:

put in interface Map<CharSequence,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<CharSequence,V>

putAll

public void putAll(Map<? extends CharSequence,? extends V> otherMap)

Specified by:

putAll in interface Map<CharSequence,V>

clear

public void clear()

Specified by:

clear in interface Map<CharSequence,V>

keySet

public Set<CharSequence> keySet()

Specified by:

keySet in interface Map<CharSequence,V>

values

public Collection<V> values()

Specified by:

values in interface Map<CharSequence,V>

entrySet

public Set<Map.Entry<CharSequence,V>> entrySet()

Specified by:

entrySet in interface Map<CharSequence,V>

computeIfAbsent

public V computeIfAbsent(CharSequence key,
 Supplier<V> valueSupplier)

equals

public boolean equals(Object other)

Specified by:

equals in interface Map<CharSequence,V>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<CharSequence,V>

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object