Package org.apache.ibatis.util

Class MapUtil

java.lang.Object

org.apache.ibatis.util.MapUtil

public class MapUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static <K, V> V	computeIfAbsent(Map<K,V> map, K key, Function<K,V> mappingFunction)	A temporary workaround for Java 8 specific performance issue JDK-8161372 . This class should be removed once we drop Java 8 support.
static <K, V> Map.Entry<K,V>	entry(K key, V value)	Map.entry(key, value) alternative for Java 8.

Methods inherited from class java.lang.Object

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

Method Details

computeIfAbsent

public static <K,
V> V computeIfAbsent(Map<K,V> map,
 K key,
 Function<K,V> mappingFunction)

A temporary workaround for Java 8 specific performance issue JDK-8161372 .
This class should be removed once we drop Java 8 support.

See Also:

• https://bugs.openjdk.java.net/browse/JDK-8161372

entry

public static <K,
V> Map.Entry<K,V> entry(K key,
 V value)

Map.entry(key, value) alternative for Java 8.