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java - jaxb2-basics是否可以配置为泛型对象的类型变量指定接口(interface)?

转载 作者:行者123 更新时间:2023-11-30 09:46:25 25 4
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我正在使用 jax-ws 的 wsimport 从 WSDL 生成 java 类。我正在使用 jaxb2-basics 插件来创建 toString、equals、hashCode、copy 和 merge 方法。

我希望生成的类能够实现接口(interface),以便在我们需要更改代码时将我们的代码与实现隔离开来。

我想使用 jaxb2 的功能来生成实现指定接口(interface)的类,但收效甚微。类实现接口(interface)是不够的。我希望由其他生成的类组成的生成类在引用这些对象时使用接口(interface)而不是实现。

我正在使用一个外部绑定(bind)文件来定义一个类应该实现的接口(interface):

<jaxws:bindings

xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
xmlns:jaxws="http://java.sun.com/xml/ns/jaxws"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
wsdlLocation="ExampleService.wsdl"
xmlns:inheritance="http://jaxb2-commons.dev.java.net/basic/inheritance"
jaxb:extensionBindingPrefixes="inheritance">

<!-- Person -->
<jaxws:bindings node="wsdl:definitions/wsdl:types/s:schema[@targetNamespace='http://example.com/ws']">
<jaxb:bindings node="//s:complexType[@name='Person']">
<inheritance:implements>com.example.IPerson</inheritance:implements>
</jaxb:bindings>
</jaxws:bindings>

<!-- Bus -->
<jaxws:bindings node="wsdl:definitions/wsdl:types/s:schema[@targetNamespace='http://example.com/ws']">
<jaxb:bindings node="//s:complexType[@name='Bus']">
<inheritance:implements>com.example.IBus</inheritance:implements>
<jaxb:bindings node="//s:element[@name='Driver']">
<jaxb:class ref="com.example.IPerson"/>
</jaxb:bindings>
<!-- How to do this? This doesn't work.
<jaxb:bindings node="//s:element[@name='Passengers']">
<jaxb:class ref="java.util.List&lt;com.example.IPerson&gt;"/>
</jaxb:bindings>
-->

</jaxb:bindings>
</jaxws:bindings>

例如,如果我有一个名为 Bus 的类,其中有一个名为 Person 的类,我希望 Bus 实现 IBus,Person 实现 IPerson,Bus 有一个 IPerson 类型的成员变量,而不是 Person。

public Class Bus implements IBus {

protected IPerson driver;
...
}

我在绑定(bind)文件中的内容正在运行。

但是,如果 Bus 有一个 Person 对象列表,我无法让 wsimport 为定义 IPerson 对象列表的 Bus 生成一个类。

public Class Bus implements IBus {

protected IPerson driver;
protected List<IPerson> passengers;
...
}

这是我使用的示例 wsdl(愚蠢而愚蠢的示例,但它明白了要点):

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:ns="http://example.com/ws"
xmlns:s1="http://schemas.xmlsoap.org/wsdl/soap/"
targetNamespace="http://example.com/ws"
name="BusServiceDefinitions">

<types>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
attributeFormDefault="qualified"
elementFormDefault="qualified"
targetNamespace="http://example.com/ws">
<xs:element name="BusRequest" type="ns:BusRequest"/>
<xs:element name="BusResponse" type="ns:BusResponse"/>
<xs:complexType name="Bus">
<xs:sequence>
<xs:element name="Driver" type="ns:Person" minOccurs="1" maxOccurs="1"/>
<xs:element name="Passengers" type="ns:Person" minOccurs="1" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="Person">
<xs:sequence>
<xs:element name="Name" type="xs:string" minOccurs="1" maxOccurs="1"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="BusRequest">
<xs:sequence>
<xs:element name="person" type="xs:string" minOccurs="1" maxOccurs="1"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="BusResponse">
<xs:sequence>
<xs:element name="bus" type="xs:string" minOccurs="1" maxOccurs="1"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
</types>

<message name="BusRequest">
<part name="BusRequest" type="ns:BusRequest"/>
</message>
<message name="BusResponse">
<part name="Bus" type="ns:Bus"/>
</message>

<portType name="Bus_PortType">
<operation name="createBus">
<input message="ns:BusRequest"/>
<output message="ns:BusResponse"/>
</operation>
</portType>

<binding name="Bus_Binding" type="ns:Bus_PortType">
<s1:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="createBus">
<s1:operation soapAction="createBus"/>
<input>
</input>
<output>
</output>
</operation>
</binding>

<service name="Bus_Service">
<documentation>WSDL File for HelloService</documentation>
<port binding="ns:Bus_Binding" name="Bus_Port">
<s1:address
location="http://localhost:8080/soap/servlet/rpcrouter"/>
</port>
</service>
</definitions>

这是我的pom:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>jaxws-test</groupId>
<artifactId>jaxws-test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>jaxws-test</name>
<dependencies>
<dependency>
<groupId>com.sun.xml.ws</groupId>
<artifactId>jaxws-rt</artifactId>
<version>2.2.3</version>
</dependency>
<dependency>
<groupId>org.jvnet.jaxb2_commons</groupId>
<artifactId>jaxb2-basics</artifactId>
<version>0.6.2</version>
</dependency>
<dependency>
<groupId>org.jvnet.jaxb2_commons</groupId>
<artifactId>jaxb2-basics-runtime</artifactId>
<version>0.6.2</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
<resource>
<directory>src/main/wsdl</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-codegen-plugin</artifactId>
<version>2.4.1</version>
<executions>
<execution>
<id>generate-sources</id>
<phase>generate-sources</phase>
<goals>
<goal>wsdl2java</goal>
</goals>
</execution>
</executions>
<configuration>
<verbose>true</verbose>
<wsdlOptions>
<wsdlOption>
<wsdl>src/main/wsdl/ExampleService.wsdl</wsdl>
<extraargs>
<extraarg>-xjc-Xinheritance</extraarg>
</extraargs>
<bindingFiles>
<bindingFile>src/main/wsdl/ExampleBindings.xml</bindingFile>
</bindingFiles>
</wsdlOption>
</wsdlOptions>
</configuration>
<dependencies>
<dependency>
<groupId>org.jvnet.jaxb2_commons</groupId>
<artifactId>jaxb2-basics</artifactId>
<version>0.6.2</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
</repositories>
</project>

有谁知道是否有可能让 jaxb2-basics 生成一个通用对象,其类型变量在 jaxb 绑定(bind)文件中指定?

最佳答案

不,目前不可能。

更新

这已经在 0.6.4 中实现了。

关于java - jaxb2-basics是否可以配置为泛型对象的类型变量指定接口(interface)?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7154563/

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