从复合组件设置托管bean属性

时间:2013-06-19 20:09:01

标签: jsf-2 managed-bean composite-component

我有一个名为 Person 的模型类和一个包含人员列表的视图范围托管bean PersonController

我创建了一个复合组件来获取此人员列表。我想要做的是直接从复合组件中设置名为 TestCompositeComponent 的其他托管bean中的人员列表。任何解决方案?..这是我的代码:

@ManagedBean
@ViewScoped
public class PersonController {

    private List<Person> persons;

    public List<Person> getPersons() {
        return persons;
    }
    public void setPersons(List<Person> persons) {
        this.persons = persons;
    }

    @PostConstruct
    public void init() {
        persons = new ArrayList<>();
        Person person1 = new Person();
        person1.setFirstname("blah");
        person1.setLastname("blah");

        Person person2 = new Person();
        person2.setFirstname("blah");
        person2.setLastname("blah");

        persons.add(person1);
        persons.add(person2);

    }

}



@ManagedBean
@ViewScoped
public class TestCompositeComponentController  {


    private List<Person> persons;

    public List<Person> getPersons() {
        return persons;
    }

    public void setPersons(List<Person> persons) {
        this.persons = persons;
    }


}



<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:composite="http://java.sun.com/jsf/composite">

<composite:interface componentType="testCompositeController">

    <composite:attribute name="persons" />


</composite:interface>

<composite:implementation>

    <h:outputText value="composite"></h:outputText>
</composite:implementation>

</html>


<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:test="http://java.sun.com/jsf/composite/test"
    xmlns:f="http://java.sun.com/jsf/core">
<h:head></h:head>
<h:body>
    <test:test persons="#{personController.persons}" />
</h:body>
</html>

1 个答案:

答案 0 :(得分:0)

是否要将从PersonController传递的List人员更改为TestCompositeComponentController返回PersonController?

如果是这种情况,请将PersonController的范围更改为@SessionScoped并将其注入TestCompositeComponentController。这样您就可以修改PersonController中的人员了。

@ManagedBean
@ViewScoped
public class TestCompositeComponentController  {


    private List<Person> persons;
    @Inject PersonController personController;

    public List<Person> getPersons() {
        return persons;
    }

    public void setPersons(List<Person> persons) {
        this.persons = persons;
    }

    public void updateTheOtherList() {
       personController.setPersons(this.persons);
    }
}

在实际案例中,复合组件中的修改将保留在数据库中,当您向后导航时,人员列表上的新提取将显示更改。