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http://issues.apache.org/jira/browse/TAPESTRY-1149?page=comments#action_12450357
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john commented on TAPESTRY-1149:
--------------------------------
If the parameter bindings are bi-directional, then maybe we can use the
following:
@Inject
private ComponentResources resources;
@SetupRender // or BeforeRender
public void initComponents() {
resources.bind(echo, "value", "name");
}
or better yet, if JDK supports field(method) reference without reflection, we
can use the following:
public void initComponents() {
resources.bind(echo.value.field, name.field);
resources.bind(echo.value.field, user.address.street.field);
resources.bind(echo.value.field, user.getAddress().street.field);
}
Anyway, it's more static type based and more code centric.
> Initializing component parameters using code (not via annotation).
> ------------------------------------------------------------------
>
> Key: TAPESTRY-1149
> URL: http://issues.apache.org/jira/browse/TAPESTRY-1149
> Project: Tapestry
> Issue Type: Improvement
> Affects Versions: 5.0
> Reporter: john
> Priority: Minor
>
> In tapestry 5, most things are done in codes and I like that approach. So
> naturally I want to pass parameters to components in codes.
> The parameters must be passed using attributes in html or in code like this:
> @ComponentClass
> public class Start {
> private String name = "john";
> @Component(parameters={"value=name"})
> private Echo echo;
> }
> I'd like to set parameters in code like following:
> @ComponentClass
> public class Start {
> private String name = "john";
> @Component
> private Echo echo;
> @SetupRender // or BeforeRender
> public void initComponents() {
> echo.setValue(name);
> }
> }
> It's more swing alike and has all the benefits of typed using like
> refactoring and static type check.
> Currently, Tapestry will complain that the required parameters not filled. I
> think move the required parameter checking AFTER the @SetupRender will work.
> But another issue is that it seems that you can't set parameter value using
> method like setValue.
> BTW, Wicket also uses this style of component parameter setting as I know.
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