cn.home1.oss.lib.common

Class MapUtils

java.lang.Object

cn.home1.oss.lib.common.MapUtils

public final class MapUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static <K,V> void	putAllIfAbsent(Map<K,V> target, Map<K,V> source) Puts entries from the source map into the target map, but without overriding any existing entry in target map, i.e.

Methods inherited from class java.lang.Object

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

Method Detail

putAllIfAbsent

public static <K,V> void putAllIfAbsent(Map<K,V> target,
                                        Map<K,V> source)

Puts entries from the source map into the target map, but without overriding any existing entry in target map, i.e. put only if the key does not exist in the target map.

Type Parameters:

K - Key

V - Value

Parameters:

target - The target map where to put new entries.

source - The source map from which read the entries.