Package io.rong.common

Class CollectionUtils

  • All Implemented Interfaces:
    
public class CollectionUtils
    Author:

    gusd @Date 2022/10/18

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      static <T> boolean containsNull(Collection<T> collection) 检测集合中是否包含 null
      static <T> boolean checkNullOrContainsNull(Collection<T> collection) 检测集合为 null 或者元素包含 null
      static <T> boolean checkNullOrEmptyOrContainsNull(Collection<T> collection) 检测集合为 null 或者为空集合，或者元素包含 null

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

    • Method Detail

      • containsNull

         static <T> boolean containsNull(Collection<T> collection)

        检测集合中是否包含 null

        Returns:

        true 包含，false 不包含

      • checkNullOrContainsNull

         static <T> boolean checkNullOrContainsNull(Collection<T> collection)

        检测集合为 null 或者元素包含 null

        Returns:

        true 集合为 null 或者包含元素为 null

      • checkNullOrEmptyOrContainsNull

         static <T> boolean checkNullOrEmptyOrContainsNull(Collection<T> collection)

        检测集合为 null 或者为空集合，或者元素包含 null

        Returns:

        true 集合为 null 或者空集合或者元素包含 null