com.qding.common.util

类 MapUtil

java.lang.Object

com.qding.common.util.MapUtil

public class MapUtil
extends Object

构造器概要

构造器

构造器和说明
MapUtil()

方法概要

限定符和类型	方法和说明
static <K,V> List<Map.Entry<K,V>>	converMapToEntryList(Map<K,V> map)
static <R,T> Map<R,T>	convertList2Map(List<R> keys, List<T> values)
static <R,T> Map<R,List<T>>	convertMap(List<R> keys, List<T> values)
static Map	convertMap(List values, String keySplit, Field... fields)
static void	fillMapCollection(Map source, Object key, Object value)
static void	fillMapCollectionIgnoreExist(Map source, Object key, Object value)
static void	fillMapValueByKey(Map target, Map source)
static Map<Object,List<Object[]>>	getMapFromListObjArr(List<Object[]> stockQueryParam, int index, boolean removeNull)
static <R,T> List<T>	getMapValues(Map<R,T> map, List<R> keys)
static List	getSubordinateValueMap(Map sourceTree, List keys)
static Map	intersectKeyMap(Map map, List keys)
static <K,V,T extends V> V	lookUpValueByKey(Map<K,V> map, K key, Class<T> tClazz)
static void	mergeCounts(Map<String,Integer> counter, String key)
static <R,T> Map<R,T>	removeAllNullValueEntry(Map<R,T> source)
static void	replaceMaxValue(Map<Integer,BigDecimal> maxKeeper, Integer key, BigDecimal value)
static Map	reverseKeyAndValue(Map map)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

MapUtil

public MapUtil()

方法详细资料

mergeCounts

public static void mergeCounts(Map<String,Integer> counter,
                               String key)

replaceMaxValue

public static void replaceMaxValue(Map<Integer,BigDecimal> maxKeeper,
                                   Integer key,
                                   BigDecimal value)

fillMapValueByKey

public static void fillMapValueByKey(Map target,
                                     Map source)

fillMapCollection

public static void fillMapCollection(Map source,
                                     Object key,
                                     Object value)

fillMapCollectionIgnoreExist

public static void fillMapCollectionIgnoreExist(Map source,
                                                Object key,
                                                Object value)

intersectKeyMap

public static Map intersectKeyMap(Map map,
                                  List keys)

getMapValues

public static <R,T> List<T> getMapValues(Map<R,T> map,
                                         List<R> keys)

lookUpValueByKey

public static <K,V,T extends V> V lookUpValueByKey(Map<K,V> map,
                                                   K key,
                                                   Class<T> tClazz)

convertMap

public static <R,T> Map<R,List<T>> convertMap(List<R> keys,
                                              List<T> values)

convertMap

public static Map convertMap(List values,
                             String keySplit,
                             Field... fields)
                      throws IllegalArgumentException,
                             IllegalAccessException

抛出:

IllegalArgumentException

IllegalAccessException

getSubordinateValueMap

public static List getSubordinateValueMap(Map sourceTree,
                                          List keys)

reverseKeyAndValue

public static Map reverseKeyAndValue(Map map)

convertList2Map

public static <R,T> Map<R,T> convertList2Map(List<R> keys,
                                             List<T> values)

removeAllNullValueEntry

public static <R,T> Map<R,T> removeAllNullValueEntry(Map<R,T> source)

getMapFromListObjArr

public static Map<Object,List<Object[]>> getMapFromListObjArr(List<Object[]> stockQueryParam,
                                                              int index,
                                                              boolean removeNull)

converMapToEntryList

public static <K,V> List<Map.Entry<K,V>> converMapToEntryList(Map<K,V> map)