org.apache.flink.util

类 CollectionUtil

java.lang.Object

org.apache.flink.util.CollectionUtil

@Internal
public final class CollectionUtil
extends Object

Simple utility to work with Java collections.

字段概要

字段

限定符和类型	字段和说明
static int	MAX_ARRAY_SIZE A safe maximum size for arrays in the JVM.

方法概要

限定符和类型	方法和说明
static boolean	isNullOrEmpty(Collection<?> collection)
static boolean	isNullOrEmpty(Map<?,?> map)

从类继承的方法 java.lang.Object

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

字段详细资料

MAX_ARRAY_SIZE

public static final int MAX_ARRAY_SIZE

A safe maximum size for arrays in the JVM.

另请参阅:

常量字段值

方法详细资料

isNullOrEmpty

public static boolean isNullOrEmpty(Collection<?> collection)

isNullOrEmpty

public static boolean isNullOrEmpty(Map<?,?> map)