Package org.apache.calcite.util

Class ImmutableNullableMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

org.apache.calcite.util.ImmutableNullableMap<K,V>

Type Parameters:

K - Key type

V - Value type

All Implemented Interfaces:

Map<K,V>

public abstract class ImmutableNullableMap<K,V>
extends AbstractMap<K,V>

An immutable map that may contain null values.

If the map cannot contain null values, use ImmutableMap.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Method Summary

Modifier and Type	Method	Description
static <K, V> Map<K,V>	copyOf(Map<? extends K,? extends V> map)	Returns an immutable map containing the given elements.
static <K, V> Map<K,V>	copyOf(SortedMap<? extends K,? extends V> map)	Returns an immutable navigable map containing the given entries.

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

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

copyOf

public static <K,
V> Map<K,V> copyOf(Map<? extends K,? extends V> map)

Returns an immutable map containing the given elements.

Behavior is as ImmutableMap.copyOf(Iterable) except that this map allows nulls.

copyOf

public static <K,
V> Map<K,V> copyOf(SortedMap<? extends K,? extends V> map)

Returns an immutable navigable map containing the given entries.

Behavior is as ImmutableSortedMap.copyOf(Map) except that this map allows nulls.