我一直在这里关注这个异常,但我找不到解决方案,所以我想只粘贴我的代码,以防万一出现问题。当我尝试查找 EvaluationSelectionCriteria 实体时,我收到此异常。
Exception: org.hibernate.HibernateException: A collection with cascade="all-delete- orphan" was no longer referenced by the owning entity instance: com.greenvalley.etendering.domain.Candidacy.evaluationSelectionCriterias
@OneToMany(cascade = {CascadeType.ALL}, fetch = FetchType.LAZY)
@JoinColumn(name = "candidacy_id", nullable = false)
@XmlElement
@JsonIgnore
@Getter
@Setter
private List<EvaluationSelectionCriteria> evaluationSelectionCriterias = new ArrayList<>();
@ManyToOne
@JoinColumn(name = "candidacy_id", nullable = false, insertable = false, updatable = false)
@XmlTransient
@Getter
@Setter
private Candidacy candidacy;
Run Code Online (Sandbox Code Playgroud) 我有两个脚本foo.sh和bla.sh
foo.sh
#bin/bash
test(){
"hello world"
}
test
exit 1
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bla.sh
#bin/bash
source ./a.sh
echo a.test
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问题是源似乎运行a.sh脚本,当然然后退出1 b后永远不会执行.
有没有办法只使用bla的函数测试而不运行整个脚本?
我在DSL中使用monad和comprenhension工作.由于我的客户端不知道Scala我试图隐藏这么多语法.到目前为止我有这个DSL
(for {
* <- Given("A message", message(path = "esb", version = TWO))
* <- And("With version 2.0", *)
* <- And("I make esb return 300", *)
* <- When("I make a request", *)
* <- Then("The return code is 500", *)
} yield ()).foldMap(scenario)
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这比使它们实现scalaTest要好得多,但这仍然可以吓到它们.
有没有办法隐藏使用隐式u其他机制的for/yield而只是离开DSL?
问候.
我刚开始学习Clojure,我习惯于使用其他函数式语言创建一些具有类似功能的管道
val result = filter(something)
map(something)
reduce(something)
collection
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我正在尝试使用 Clojure 结合两个filter功能来实现类似的功能
(defn filter-1 [array] (filter
(fn [word] (or (= word "politrons") (= word "hello"))) array))
(defn filter-2 [array] (filter
(fn [word] (= word "politrons")) array))
(def result (filter-1 ["hello" "politrons" "welcome" "to" "functional" "lisp" ""]))
(println "First:" result)
(println "Pipeline:" ((filter-2 result)))
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但我无法让它发挥作用。
您能否提供一些有关如何将两个predicate功能组合在一起的建议或文档collection?
问候
我有一些数据类型作为一个参数我有函数
data Event =
BasketCreated{basket:: Basket}
| ProductAdded{ basket::Basket, addProductInBasket :: Basket -> String -> Int -> Basket}
| DiscountAdded{ basket::Basket, addDiscountInBasket :: Basket -> Int -> Basket }
deriving (Show, Eq)
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不幸的是,因为我的数据类型包含函数deriving (Show, Eq)没有编译.
知道如何deriving (Show)使用函数来打印该数据类型