hybris Models_weixin_30239339的博客-CSDN博客

来自 : CSDN技术社区 发布时间：2021-03-24

设置方式

ProductModel.priceQuantity

1.0

LoadInterceptor 拦截器为ProductModel默认设置

ProductModel.code

test

代码中明确指定

ProductModel.approvalStatus

CHECK

LoadInterceptor 拦截器为ProductModel默认设置

所以如果要创建实例Model请使用new ProductModel()方法来创建 这样不会触发拦截器给实例Model设置默认值来对查询造成不必要的干扰

 

 

 

 

 

 

 

 

 

 

 

 

 

这也可以搜索本地化属性。但是如果我们这么做了 必须要手工把Model加入到Model context中。如果没有做这不 那么LocaleProvider 这个值就不会被设置 查询结果会抛出如下错误

 java.lang.IllegalStateException: got no locale provider - cannot access default localized getters and setters.

//search for a product where the english name is uniqueName_english and the german name uniqueName_deutsch .ProductModel exampleProduct new ProductModel();exampleProduct.setName( uniqueName_deutsch , Locale.GERMAN);exampleProduct.setName( uniqueName_english , Locale.ENGLISH);modelService.attach(exampleProduct); // - important

额外的代码实例 请参考FlexibleSearchServiceGetModelByExampleTest.java

 

Saving a Model

有两种基本的方式保存模型

某些情况 保存一个Model和他引用的其他Model。使用modelService  s save(...) 方法

modelService.save(model);

如果一个Model还引用了其他的Model 如果这些被引用的Model之前没有被保存过那么都会被保存。如果之前已经被保存过的话那么就不会再保存

保存所有的模型

modelService.saveAll();

将保存Model context上记录的所有改动。参见Model Context 

Collections

There is a special behavior when using collections. You cannot simply get a collection-based attribute of a Model, modify the collection s contents and call the ModelService  s save(...) method. The getter methods of Models return unmodifiable lists, so you cannot modify the collection. Instead, you have to:

Create a new collection object.Add existing, non-modified values.Add new or modified values.Set the collection to the attribute.

Store the attribute by calling the save(...) for the Model.

This is the intended behavior to ensure data consistency: You explicitly have to create a new Collection, set values to it, and save the attribute for the collection. Thus, you know which values have been added and stored, and which values have not.

 

Removing a Model

删除一个Model就调用modelService删除方法:

modelService.remove(product)

Refresh a Model

modelService.refresh(product)

注意 从数据库刷新检索Model的值 会覆盖现有的值 如果没有保存的话 数据会丢失

 

Model 与 hybris Items 之间的转换

我们可能经常会遇到Model 与hybris Items之间的转换

 

你应该总是避免直接访问Jalo Items 除非在ServiceLayer没有替代者。
原文 
You should always avoid accessing Jalo items directly, unless there is no replacement in the ServiceLayer.

Converting a Model to an Item 把一个Model 转换为Item

Sometimes you need to get access to the underlying item of a Model, for example to perform some logic only available in the item class and not yet ported to a service.

有时我们需要得到一个Model的底层Item。比如要在一些项目类执行一些逻辑但是他没有一个服务类。modelService的getSource(...) 方法把一个Model转换为Item

Product productItem modelService.getSource(productModel)

 

Converting an Item to a Model(把Item转换为Model)

有时 我们需要使用Model 但是这是只有Item.This typically occurs if legacy, Jalo Layer-based code is involved.To make use of this item in your service layer related code, you have to convert the item to a Model. Use the special get method in the modelService that takes an item as parameter and returns a Model, such as:

final Cart cart JaloSession.getCurrentSession().getCart();final CartModel result modelService().get(cart);return result;

 

Defining Enums for Models(为Models 定义枚举)

Models 可以使用JAVA的枚举 你可以为Models的属性预定义可选择的值。枚举的典型用例

星期月T恤的颜色

定义一个枚举值模型:

以下例子为在Items.xml 中定义enum:

 enumtypes  enumtype code ArticleApprovalStatus autocreate true generate true  value code check /  value code approved /  value code unapproved /  /enumtype  enumtypes 

2. 在attribute 标签中定义enum

 attribute qualifier approvalStatus type ArticleApprovalStatus  modifiers read true write true search true optional false /  persistence type property /  /attribute 

3.出发Model生成。该Model生成枚举的getter和setter方法

 /***Generated method- Getter of theProduct.approvalStatus* attribute defined at extensioncatalog.* return the approvalStatuspublic ArticleApprovalStatus getApprovalStatus()if( !isAttributeLoaded(APPROVALSTATUS))this._approvalStatus (ArticleApprovalStatus) loadAttribute(APPROVALSTATUS);throwLoadingError(APPROVALSTATUS);return this._approvalStatus;*Generated method- Getter of theProduct.articleStatus* attribute defined at extensioncatalog.* return the articleStatuspublic MapgetArticleStatus()return getLocalizedValue(this._articleStatus, ARTICLESTATUS, getCurrentLocale());*Generated method- Getter of theProduct.articleStatus* attribute defined at extensioncatalog.* param loc the value localization key* return the articleStatus* throws IllegalArgumentException if localization key cannot be mapped to data languagepublic MapgetArticleStatus(final Locale loc)return getLocalizedValue(this._articleStatus, ARTICLESTATUS, loc);*Generated method- Setter ofArticleApprovalStatus.approvalStatus* attribute defined at extensioncatalog.* param value the approvalStatuspublic void setApprovalStatus(final ArticleApprovalStatus value)this._approvalStatus value;markDirty(APPROVALSTATUS);*Generated method- Setter oflocalized:ArticleStatusMapType.articleStatus* attribute defined at extensioncatalog.* param value the articleStatuspublic void setArticleStatus(final Mapvalue)setLocalizedValue( this._articleStatus,ARTICLESTATUS, getCurrentLocale(), value );*Generated method- Setter oflocalized:ArticleStatusMapType.articleStatus* attribute defined at extensioncatalog.* param value the articleStatus* param loc the value localization key* throws IllegalArgumentException if localization key cannot be mapped to data languagepublic void setArticleStatus(final Mapvalue, final Locale loc)setLocalizedValue( this._articleStatus,ARTICLESTATUS, loc, value );}

 

转载于:https://www.cnblogs.com/pingjie/p/4319150.html