java.util.Set的等效模式数据类型是什么？
[英]What's the equivalent schema datatype for java.util.Set?
问题描述
I am using GraphQL for Java and need to use Set / HashSet datatype for one of the member of my existing POJO to build by GraphQL schema. 
我正在使用GraphQL for Java，并且需要使用Set / HashSet数据类型作为我现有POJO的成员之一来构建GraphQL模式。 Any advice and insight is appreciated. 任何建议和见解表示赞赏。
1 个解决方案
解决方案1
1 2019-01-07 08:37:55
There is no built-in set type in GraphQL , sorry about that. GraphQL中没有内置的set类型，抱歉。
What you get the closest one is List type which is represented by enclosing any types using [ and ] such as [String] , [Int] , [Bar] etc. It can accept multiple elements but does not guarantee uniqueness between the containing elements. 你得到的最接近的是List类型，它用[和]括起任何类型来表示，如[String] ， [Int] ， [Bar]等。它可以接受多个元素，但不保证包含元素之间的唯一性。
You may consider to implement a directive for a set behaviour. 您可以考虑为set行为实现指令 。 May be called @set which is placed along with the list data type when defining your GraphQL schema. 在定义GraphQL架构时，可以将@set称为@set ，它与列表数据类型一起放置。
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