fluent | 易学教程

Fluent NHibernate Many to one mapping

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问题 I am new to Hibernate world. It may be a silly question, but I am not able to solve it. I am testing many to One relationship of tables and trying to insert record. I have a Department table and Employee table. Employee and Dept has many to One relationship here. I am using Fluent NHibernate to add records. All codes below. Pls help SQL Code create table Dept ( Id int primary key identity, DeptName varchar(20), DeptLocation varchar(20) ); create table Employee ( Id int primary key identity,

Set up caching on entities and relationships in Fluent Nhibernate?

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问题 Does anyone have an example how to set up and what entities to cache in fluent nhibernate. Both using fluent mapping and auto mapping? And the same for entity relationships, both one-to-many and many-to-many? 回答1: I have been working a a similar situation, where I just want to cache specific elements, and want these elements to be loaded once on start up, and kept in cache, until the application is shut down. This is a read only cache, and is used to populate a list of countries, so that a

Fluent Python 3函数 1一等对象

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编程语言理论家把“一等对象”定义为满足下述条件的程序实体：在运行时创建；能赋值给变量或数据结构中的元素；能作为参数传给函数；能作为函数的返回结果；在 Python 中，整数、字符串和字典都是一等对象。人们经常将 “ 把函数视作一等对象 ” 简称为 “ 一等函数 ”。 1.函数是“一等公民” 高阶函数和匿名函数有了一等函数，就可以使用函数式风格编程。函数式编程的特点之一是使用高阶函数。接受函数为参数，或者把函数作为结果返回的函数是高阶函数（higher- order function）。比如内置函数 sorted，函数被作为关键字参数 key（任何单参数函数都能作为来源： CSDN 作者： guoyunfei2018 链接： https://blog.csdn.net/qq_42105144/article/details/103699365

group by stations in Laravel

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问题 I'm trying to display the results of this query in laravel, this time only using fluent since Eloquent results where too nested, there're are data retrived from 6 tables in total $result = \DB::table('estacion') ->join('equipo_estacion as eq_est', 'estacion.id','=', 'eq_est.estacion_id') ->join('equipo as eq', 'eq_est.equipo_id', 'eq.id') ->join('equipo_parametro as eq_param','eq.id','eq_param.equipo_id') ->join('parametro as pa','eq_param.parametro_id','pa.id') ->join('region','estacion

EF is mapping to the wrong keys on entities

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问题 When I run a linq query it's trying to map the SchoolInfo.SchoolInfoId to the SchoolId.SchoolId. How do I define the correct mapping so it knows to map SchoolInfo.SchoolId to School.SchoolId? This is Code-First. SQL Tables table School ( int SchoolId not null PK ) table SchoolInfo ( int SchoolInfoId not null PK int SchoolId not null FK ) Models class School { [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)] int schoolId; virtual SchoolInfo SchoolInfo; } class SchoolInfo { [Key,

Usage of abstract class in the builder pattern?

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问题 I have two types of payload coming from upstream: It's either PayloadA or PayloadB . There are some common fields between PayloadA and PayloadB so I created Payload class with those common fields and for rest I created two builder class one for each payload. Below is the builder class for PayloadA : public final class PayloadA { private final String clientId; private final String langid; private final String deviceId; private final Map<String, String> applicationPayload; private PayloadA

Making my class 'fluent'

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问题 I discovered yesterday that I can simulate a fluent interface if I return the class instance from each method like this... public class IsThisFluent { public IsThisFluent Stuff() { //... return this; } public IsThisFluent OtherStuff() { // ... return this; } } Is this all there is to it? I admit, I'm a bear of very little brain and I want to carry on this this but I thought it might be best to check with a grown up. Am I missing something? Is there a 'gotcha' that I haven't spotted with this

Lombok：简洁代码、提高编程效率利器

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> Lombok是一个可以让编程人员不必硬编set、get、构造以及hash和toString方法的插件，在编译时会自动根据定义的属性生成包含这些相关方法的class文件。常用的注解如下： @AllArgsConstructor 作用于类，生成所有属性的代参构造函数 @NoArgsConstructor 作用于类，生成无参构造函数 @toString 作用于类，生成toString方法 @EqualsAndHashCode 作用于类，生成equals和hashcode方法 @Setter，@Getter 作用于类，为所有属性生成set和get方法，作用于属性，为该属性生成set和get方法；下面这三个注解比较厉害了，终极大boss： @Data 作用于类，可以生成上面除了@AllArgsConstructor以外所有的方法。若想生成所有参数构造，需配合@AllArgsConstructor使用，但是无参构造就会失效，所以需要自定义或搭配@NoArgsConstructor一起使用。需要说明的是：若自定义了set或get方法，@Setter，@Getter和@Data三个注解使用时是不会覆盖生成set或get方法的 @Builder 用于类，生成一个当前类的builder构建器

Are there any fluent WPF projects? [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . As part of my on-going attempt to come to terms with WPF/XAML, I've become interested in the application of fluent interfaces to UI coding. I am aware of Fluent Silverlight (http://code.google.com/p/fluent-silverlight/), but I can't seem to find anything equivalent for WPF. Just as a personal note, I'm finding

returning inherited class instead of superclass in method overriding

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问题 I have a certain class structure that looks something like this: class Parent { public Parent(int property) { /* use property */} } class Son extends Parent { public Son(int parentProperty, String sonProperty) { super(parentProperty); /* use son property */ } } I'd like to create builders for both these classes such that: class ParentBuilder { protected int parentProperty; public ParentBuilder parentProperty(int parentPropertyValue) { parentPropertyValue = parentPropertyValue; return this; }