com.datastax.oss.protocol.internal.util.collection

Class NullAllowingImmutableMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

com.datastax.oss.protocol.internal.util.collection.NullAllowingImmutableMap<K,V>

All Implemented Interfaces:

Serializable, Map<K,V>

public class NullAllowingImmutableMap<K,V>
extends AbstractMap<K,V>
implements Serializable

An immutable map that allows null keys and values.

This implementation is intended for low cardinalities, query operations have linear performance. Insertion order is preserved.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NullAllowingImmutableMap.Builder<K,V> A builder to create an immutable map; this class is not thread-safe.

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 and Description
static <K,V> NullAllowingImmutableMap.Builder<K,V>	builder() Returns a builder to create a new instance, with the default expected size (16).
static <K,V> NullAllowingImmutableMap.Builder<K,V>	builder(int expectedSize) Returns a builder to create a new instance.
boolean	containsKey(Object key)
boolean	containsValue(Object value)
static <K,V> NullAllowingImmutableMap<K,V>	copyOf(Map<K,V> map)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
static <K,V> NullAllowingImmutableMap<K,V>	of()
static <K,V> NullAllowingImmutableMap<K,V>	of(K key1, V value1)
static <K,V> NullAllowingImmutableMap<K,V>	of(K key1, V value1, K key2, V value2)
static <K,V> NullAllowingImmutableMap<K,V>	of(K key1, V value1, K key2, V value2, K key3, V value3)

Methods inherited from class java.util.AbstractMap

clear, clone, equals, 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 Detail

of

public static <K,V> NullAllowingImmutableMap<K,V> of()

of

public static <K,V> NullAllowingImmutableMap<K,V> of(K key1,
                                                     V value1)

of

public static <K,V> NullAllowingImmutableMap<K,V> of(K key1,
                                                     V value1,
                                                     K key2,
                                                     V value2)

of

public static <K,V> NullAllowingImmutableMap<K,V> of(K key1,
                                                     V value1,
                                                     K key2,
                                                     V value2,
                                                     K key3,
                                                     V value3)

copyOf

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

builder

public static <K,V> NullAllowingImmutableMap.Builder<K,V> builder()

Returns a builder to create a new instance, with the default expected size (16). The returned builder is not thread-safe.

See Also:

builder(int)

builder

public static <K,V> NullAllowingImmutableMap.Builder<K,V> builder(int expectedSize)

Returns a builder to create a new instance. The returned builder is not thread-safe.

Parameters:

expectedSize - the number of expected entries in the map. This is used to pre-size internal data structures (if the builder ends up having more entries, it resizes automatically).

entrySet

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

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

Overrides:

containsValue in class AbstractMap<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class AbstractMap<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<K,V>