程序包 cn.taketoday.util

类 LinkedMultiValueMap<K,V>

java.lang.Object

cn.taketoday.util.MultiValueMapAdapter<K,V>

cn.taketoday.util.LinkedMultiValueMap<K,V>

类型参数:

K - the key type

V - the value element type

所有已实现的接口:

MultiValueMap<K,V>, Serializable, Map<K,List<V>>

public class LinkedMultiValueMap<K,V>
extends MultiValueMapAdapter<K,V>

Simple implementation of MultiValueMap that wraps a LinkedHashMap, storing multiple values in an ArrayList.

This Map implementation is generally not thread-safe. It is primarily designed for data structures exposed from request objects, for use in a single thread only.

从以下版本开始:

4.0 2022/3/17 16:33

作者:

Arjen Poutsma, Juergen Hoeller, Harry Yang

另请参阅:

• 序列化表格

嵌套类概要

从接口继承的嵌套类/接口 java.util.Map

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

字段概要

字段

修饰符和类型	字段	说明
private static final long	serialVersionUID

从类继承的字段 cn.taketoday.util.MultiValueMapAdapter

targetMap

从接口继承的字段 cn.taketoday.util.MultiValueMap

defaultMappingFunction, EMPTY, smartListMappingFunction

构造器概要

构造器

构造器	说明
LinkedMultiValueMap()	Create a new LinkedMultiValueMap that wraps a LinkedHashMap.
LinkedMultiValueMap(int expectedSize)	Create a new LinkedMultiValueMap that wraps a LinkedHashMap with an initial capacity that can accommodate the specified number of elements without any immediate resize/rehash operations to be expected.
LinkedMultiValueMap(Map<K,List<V>> otherMap)	Copy constructor: Create a new LinkedMultiValueMap with the same mappings as the specified Map.

方法概要

修饰符和类型	方法	说明
LinkedMultiValueMap<K,V>	deepCopy()	Create a deep copy of this Map.

从类继承的方法 cn.taketoday.util.MultiValueMapAdapter

add, addAll, clear, containsKey, containsValue, entrySet, equals, forEach, get, getFirst, hashCode, isEmpty, keySet, put, putAll, putIfAbsent, remove, set, size, toString, values

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Map

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

从接口继承的方法 cn.taketoday.util.MultiValueMap

add, addAll, addAll, addAll, addAll, addIfAbsent, asReadOnly, asWritable, copyToArrayMap, setAll, toArrayMap, toSingleValueMap

字段详细资料

serialVersionUID

private static final long serialVersionUID

另请参阅:

• 常量字段值

构造器详细资料

LinkedMultiValueMap

public LinkedMultiValueMap()

Create a new LinkedMultiValueMap that wraps a LinkedHashMap.

LinkedMultiValueMap

public LinkedMultiValueMap(int expectedSize)

Create a new LinkedMultiValueMap that wraps a LinkedHashMap with an initial capacity that can accommodate the specified number of elements without any immediate resize/rehash operations to be expected.

参数:

expectedSize - the expected number of elements (with a corresponding capacity to be derived so that no resize/rehash operations are needed)

另请参阅:

• CollectionUtils.newLinkedHashMap(int)

LinkedMultiValueMap

public LinkedMultiValueMap(Map<K,List<V>> otherMap)

Copy constructor: Create a new LinkedMultiValueMap with the same mappings as the specified Map. Note that this will be a shallow copy; its value-holding List entries will get reused and therefore cannot get modified independently.

参数:

otherMap - the Map whose mappings are to be placed in this Map

另请参阅:

• Object.clone()
• deepCopy()

方法详细资料

deepCopy

public LinkedMultiValueMap<K,V> deepCopy()

Create a deep copy of this Map.

返回:

a copy of this Map, including a copy of each value-holding List entry (consistently using an independent modifiable ArrayList for each entry) along the lines of MultiValueMap.addAll semantics

从以下版本开始:

2.1.7

另请参阅:

• MultiValueMap.addAll(Map)