10-hibernate Single-table operations-component Properties

Component properties:

An object of a property in an entity class that belongs to a user-defined class, such as an object in an entity class that is a custom class:

This address is a user-defined class.

The custom class address is defined as follows:

//Address class Public classAddress {PrivateString postcode;//Postal Code    PrivateString phone;//Telephone    PrivateString address;//Address         PublicAddress () {} PublicAddress (string postcode, string phone, address of string) {//super ();         This. Postcode =postcode;  This. Phone =phone;  This. Address =address; }     PublicString Getpostcode () {returnpostcode; }     Public voidSetpostcode (String postcode) { This. Postcode =postcode; }     PublicString Getphone () {returnphone; }     Public voidSetphone (String phone) { This. Phone =phone; }     PublicString getaddress () {returnaddress; }     Public voidsetaddress (String address) { This. Address =address; }}

The entity classes are modified as follows:

The test class is modified as follows:

The standard registration rules are as follows: Address represents the attribute name in the corresponding entity class , class represents the custom class name,

The following postcode represents a property name in a custom class that represents a field in the corresponding database.

Register in the Hbm.xml file as follows:

Query results after execution:

10-hibernate Single-table operations-component Properties