cn.sliew.milky.common.chain

类 ContextMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.concurrent.ConcurrentHashMap<K,V>

cn.sliew.milky.common.chain.ContextMap<K,V>

类型参数:

K - the type of keys maintained by the context associated with this context

V - the type of mapped values

所有已实现的接口:

Context<K,V>, Serializable, ConcurrentMap<K,V>, Map<K,V>

public class ContextMap<K,V>
extends ConcurrentHashMap<K,V>
implements Context<K,V>

Convenience base class for Context implementations.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 java.util.concurrent.ConcurrentHashMap

ConcurrentHashMap.KeySetView<K,V>

从类继承的嵌套类/接口 java.util.AbstractMap

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

从接口继承的嵌套类/接口 java.util.Map

Map.Entry<K,V>

字段概要

字段

限定符和类型	字段和说明
protected Logger	logger

构造器概要

构造器

构造器和说明
ContextMap() Creates a new, empty Context with a default initial capacity, load factor, and concurrencyLevel.
ContextMap(int initialCapacity) Creates a new, empty Context with the specified initial capacity, and with default load factor and concurrencyLevel
ContextMap(int initialCapacity, float loadFactor, int concurrencyLevel) Creates a new, empty Context with the specified initial capacity, load factor, and concurrency level.
ContextMap(Logger logger) Creates a new, empty Context with a default initial capacity, load factor, and concurrencyLevel.
ContextMap(Map<? extends K,? extends V> t) Creates a new Context with the same mappings as the given map.

方法概要

限定符和类型	方法和说明
Logger	logger() This method provider a Logger utililies for user can't construct a logger or try to log pipeline context message to one logger file.
<T extends V> T	retrieve(K key) That method enhances the Map.get(Object) method that helps users avoid the redundant code of type cast/checking when assignments are already known.

从类继承的方法 java.util.concurrent.ConcurrentHashMap

clear, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, entrySet, equals, forEach, forEach, forEach, forEachEntry, forEachEntry, forEachKey, forEachKey, forEachValue, forEachValue, get, getOrDefault, hashCode, isEmpty, keys, keySet, keySet, mappingCount, merge, newKeySet, newKeySet, put, putAll, putIfAbsent, reduce, reduceEntries, reduceEntries, reduceEntriesToDouble, reduceEntriesToInt, reduceEntriesToLong, reduceKeys, reduceKeys, reduceKeysToDouble, reduceKeysToInt, reduceKeysToLong, reduceToDouble, reduceToInt, reduceToLong, reduceValues, reduceValues, reduceValuesToDouble, reduceValuesToInt, reduceValuesToLong, remove, remove, replace, replace, replaceAll, search, searchEntries, searchKeys, searchValues, size, toString, values

从类继承的方法 java.util.AbstractMap

clone

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

字段详细资料

logger

protected Logger logger

构造器详细资料

ContextMap

public ContextMap()

Creates a new, empty Context with a default initial capacity, load factor, and concurrencyLevel.

ContextMap

public ContextMap(Logger logger)

Creates a new, empty Context with a default initial capacity, load factor, and concurrencyLevel.

ContextMap

public ContextMap(int initialCapacity)

Creates a new, empty Context with the specified initial capacity, and with default load factor and concurrencyLevel

参数:

initialCapacity - the initial capacity.

ContextMap

public ContextMap(int initialCapacity,
                  float loadFactor,
                  int concurrencyLevel)

Creates a new, empty Context with the specified initial capacity, load factor, and concurrency level.

参数:

initialCapacity - the initial capacity.

loadFactor - the load factor threshold, used to control resizing.

concurrencyLevel - the estimated number of concurrently updating threads.

ContextMap

public ContextMap(Map<? extends K,? extends V> t)

Creates a new Context with the same mappings as the given map.

参数:

t - Map whose key-value pairs are added

方法详细资料

retrieve

public <T extends V> T retrieve(K key)

That method enhances the Map.get(Object) method that helps users avoid the redundant code of type cast/checking when assignments are already known.

It throws ClassCastException if types are not assignable.

指定者:

retrieve 在接口中 Context<K,V>

类型参数:

T - the target assignment type

参数:

key - the key whose associated value is to be returned

返回:

the value to which the specified key is mapped, or null if this map contains no mapping for the key

另请参阅:

Map.get(Object)

logger

public Logger logger()

从接口复制的说明: Context

This method provider a Logger utililies for user can't construct a logger or try to log pipeline context message to one logger file.

指定者:

logger 在接口中 Context<K,V>

返回:

logger