As a bonus IModel is a @FunctionalInterface now and one can do things like:
new Link<String>("", () -> "abc") {
@Override
public void onClick()
{
// ...
}
};
Seems we're getting a grip on Wicket+lambdas finally :)
Thanks
Sven
On 12.03.2016 23:13, Martin Grigorov wrote:
On Sat, Mar 12, 2016 at 11:01 PM, Martin Grigorov <[email protected]>
wrote:
On Sat, Mar 12, 2016 at 7:48 PM, Sven Meier <[email protected]> wrote:
Hi,
1)
we've been twiddling with read-only models for some time now, and IIRC it
never quite worked out.
I don't see much benefit in IReadOnlyModel as it is proposed now -
perhaps I'm missing the point though.
How about adding another default to IModel:
default void setObject(final T object) {
throw new UnsupportedOperationException();
}
This way we can get rid of AbstractReadOnlyModel too :P
A minor thing that bothers me here is that currently AROM#setObject() is
final, so subclasses are effectively read only too.
By moving this method to IModel we cannot make any guarantees.
But I guess it will always be used as an anonymous inner class, as AROM is
used now. If someone wants to have children then (s)he will have to create
a custom class and there (s)he can make it 'final'.
Let's do it!
As a bonus IModel is a @FunctionalInterface now and one can do things like:
new Link<String>("", () -> "abc") {
@Override
public void onClick()
{
// ...
}
};
2)
I don't see a need for this.
Have fun
Sven
how about adding a
On 11.03.2016 22:54, Martin Grigorov wrote:
Hi,
At "lambdas" [1] branch there are two more features:
1) IReadOnlyModel by Michael Mossman
At the moment there are AbstractReadOnlyModel and SupplierModel (extends
from AROM).
Initially while MM suggested IROM I thought it will be a parent interface
of IModel but it is the opposite - IROM extends from IModel.
I don't see need of IROM. The classes look enough to me.
2) stream based iteration of container's children by Andrea Del Bene
I have said my opinion before - the visitor approach is faster than the
stream based one.
In addition we have to remove the deprecated
org.apache.wicket.util.iterator.AbstractHierarchyIterator and its related
classes because it fails with StackoverflowError when used in a page with
bigger component tree.
So I don't see a reason for this feature.
Your option on them ?
1. https://github.com/apache/wicket/compare/lambdas
Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov
