The type is actually the problem.
It is actually a java.lang.String but the getter and setter on it are defined
by a generic interface :
// INTERFACE (Identifiable.java) :
public interface Identifiable<T> {
public void setId(T id);
public T getId();
}
// POJO TO DISPLAY IN FORM (MyPojo.java):
public class MyPojo implements Identifiable<String> {
private String id;
private String name;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
// FORM TEMPLATE (TestGeneric.tml):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
xmlns:p="tapestry:parameter">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<t:form t:id="myFrom">
<t:textfield t:id="pojoId" t:value="myPojoInstance.id"
/>
<t:textfield t:id="pojoName"
t:value="myPojoInstance.name" />
</t:form>
</body>
</html>
// PAGE CODE (TestGeneric.java):
public class TestGeneric {
public MyPojo getMyPojoInstance() {
MyPojo pojo = new MyPojo();
pojo.setId("F7U12");
pojo.setName("Narwhal");
return pojo;
}
}
-----Original Message-----
From: Thiago H. de Paula Figueiredo [mailto:[email protected]]
Sent: Friday, July 15, 2011 1:45 PM
To: 'Tapestry users'; Nicolas Gillet - MARKET-IP
Subject: Re: Generic interface, issue in TML
On Fri, 15 Jul 2011 06:55:30 -0300, Nicolas Gillet - MARKET-IP
<[email protected]> wrote:
> Hello,
Hi!
> org.apache.tapestry5.ioc.internal.util.TapestryException: Parameter
> 'translate' of component test/Generic:pojoid is bound to null. This
> parameter is not allowed to be null. [at
> classpath:com/marketip/geoplanning/web/pages/test/TestGeneric.tml, line
> 11]
What's the type of Generic.pojoid?
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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