Package com.google.protobuf

Class MapFieldLite<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

com.google.protobuf.MapFieldLite<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>, SequencedMap<K,V>

public final class MapFieldLite<K,V>
extends LinkedHashMap<K,V>

Internal representation of map fields in generated lite-runtime messages.

This class is a protobuf implementation detail. Users shouldn't use this class directly.

See Also:

• Serialized Form

Nested Class Summary

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

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

Method Summary

Modifier and Type	Method	Description
void	clear()
static <K, V> MapFieldLite<K,V>	emptyMapField()	Returns a singleton immutable empty MapFieldLite instance.
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object object)	Checks whether two map fields are equal.
int	hashCode()
boolean	isMutable()	Returns whether this field can be modified.
void	makeImmutable()	Makes this field immutable.
void	mergeFrom(MapFieldLite<K,V> other)
MapFieldLite<K,V>	mutableCopy()	Returns a deep copy of this map field.
V	put(Map.Entry<K,V> entry)
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)

Methods inherited from class java.util.LinkedHashMap

containsValue, forEach, get, getOrDefault, keySet, newLinkedHashMap, putFirst, putLast, removeEldestEntry, replaceAll, reversed, sequencedEntrySet, sequencedKeySet, sequencedValues, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, newHashMap, putIfAbsent, remove, replace, replace, size

Methods inherited from class java.util.AbstractMap

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, putIfAbsent, remove, replace, replace, size

Methods inherited from interface java.util.SequencedMap

firstEntry, lastEntry, pollFirstEntry, pollLastEntry

Method Details

emptyMapField

public static <K,
V> MapFieldLite<K,V> emptyMapField()

Returns a singleton immutable empty MapFieldLite instance.

mergeFrom

public void mergeFrom(MapFieldLite<K,V> other)

entrySet

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

Specified by:

entrySet in interface Map<K,V>

Overrides:

entrySet in class LinkedHashMap<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class LinkedHashMap<K,V>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

Overrides:

put in class HashMap<K,V>

put

public V put(Map.Entry<K,V> entry)

putAll

public void putAll(Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

Overrides:

putAll in class HashMap<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class HashMap<K,V>

equals

public boolean equals(Object object)

Checks whether two map fields are equal.

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class AbstractMap<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class AbstractMap<K,V>

mutableCopy

public MapFieldLite<K,V> mutableCopy()

Returns a deep copy of this map field.

makeImmutable

public void makeImmutable()

Makes this field immutable. All subsequent modifications will throw an UnsupportedOperationException.

isMutable

public boolean isMutable()

Returns whether this field can be modified.