Hibernate component represents as a group of values or properties, not entity (table). I have a customer table that has address fields. I will create 2 models - customer, address. In this case, Address.java is a "component" represent the "Address1", "Address2" and "Address3" columns f...
Hibernate component mapping A Component is a containted object that is be persisted value type and not an entity.But you can embed the component to entity. Now We need one-to-one association for husband an wife. We just let the in one table. Then we create one entity, on component. su...
varmapping = mapper.CompileMappingFor(new[] {typeof(Person) }); Console.Write(mapping.AsString()); } 一些Domain范例 我们使用各种集合定义Domain: 1.Mapping a class with components Person实体有两个组件: public classPerson { public intId {get;set; } publicNameName {get;set; } publicAddressAd...
A composite element mapping does not support null-able properties if you are using a<set>. There is no separate primary key column in the composite element table. Hibernate uses each column's value to identify a record when deleting objects, which is not possible with null values. You have ...
Lets create a component in student.hbm.xml file as shown in the following code.<?xml version = "1.0" encoding = "utf-8" ?> <hibernate-mapping xmlns = "urn:nhibernate-mapping-2.2" assembly = "NHibernateDemoApp" namespace = "NHibernateDemoApp"> <class name = "Student"> <id name =...
Hibernate makes it easy to employ a fine-grained domain model. That means you can have more classes than tables. In other words, you can map a single record in a table to more than one class. You do so by having one class of type Entity and the others of Value types....
Methods in org.hibernate.mapping with parameters of type Component Modifier and TypeMethod and Description Object ValueVisitor.accept(Component component) boolean Component.isSame(Component other) void MappedSuperclass.setDeclaredIdentifierMapper(Component identifier...
public int[] sqlTypes(Mapping mapping) throws MappingException Description copied from interface: Type Return the JDBC types codes (per Types) for the columns mapped by this type. NOTE: The number of elements in this array matches the return from Type.getColumnSpan(org.hibernate.engine.spi.Mapp...
<hibernate-mapping> <class name="com.bjsxt.hibernate.User" table="t_user"> <id name="id"> <generator class="native"/> </id> <property name="name"/> <component name="contact"> <property name="email"/> <property name="address"/> <property name="zipCode"/> <property name="contact...
Defines the column sizes to use according to this type if the user did not explicitly say (and if no Type.dictatedSizes(org.hibernate.engine.spi.Mapping) were given). NOTE: The number of elements in this array matches the return from Type.getColumnSpan(org...