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:

java.io.Serializable, java.util.Map<java.lang.CharSequence,V>

public class CharSequenceMap<V>
extends java.lang.Object
implements java.util.Map<java.lang.CharSequence,V>, java.io.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

java.util.Map.Entry<K,V>

Method Summary

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

create

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

size

public int size()

Specified by:

size in interface java.util.Map<java.lang.CharSequence,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<java.lang.CharSequence,V>

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<java.lang.CharSequence,V>

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<java.lang.CharSequence,V>

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<java.lang.CharSequence,V>

put

public V put(java.lang.CharSequence key,
             V value)

Specified by:

put in interface java.util.Map<java.lang.CharSequence,V>

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<java.lang.CharSequence,V>

putAll

public void putAll(java.util.Map<? extends java.lang.CharSequence,? extends V> otherMap)

Specified by:

putAll in interface java.util.Map<java.lang.CharSequence,V>

clear

public void clear()

Specified by:

clear in interface java.util.Map<java.lang.CharSequence,V>

keySet

public java.util.Set<java.lang.CharSequence> keySet()

Specified by:

keySet in interface java.util.Map<java.lang.CharSequence,V>

values

public java.util.Collection<V> values()

Specified by:

values in interface java.util.Map<java.lang.CharSequence,V>

entrySet

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

Specified by:

entrySet in interface java.util.Map<java.lang.CharSequence,V>

computeIfAbsent

public V computeIfAbsent(java.lang.CharSequence key,
                         java.util.function.Supplier<V> valueSupplier)

equals

public boolean equals(java.lang.Object other)

Specified by:

equals in interface java.util.Map<java.lang.CharSequence,V>

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<java.lang.CharSequence,V>

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object