You can see a fantastic example :D of instance method reference in
MarkupContainerTest where I filter children components with
Class::isInstance:
private Stream<Component> filterChildrenStreamByClass(MarkupContainer
container, Class<? extends Component> filterClass)
{
return container.childrenStream().filter(filterClass::isInstance);
}
Wicket on functional-steroids :)
On 02/12/2015 09:54, Michael Mosmann wrote:
Hi,
.. got it. Was on a wrong track:)
We must use BiConsumer for setter-like methods..
mm:)
Am 02.12.2015 um 09:39 schrieb Sven Meier:
Hi,
It is sad, that there is no way to get some kind of instance method
reference in java8.
instance::getName *is* an instance method reference.
IModel<String> model=Models.of(instanceModel, SomeBean::getName
,SomeBean::setName); // does not compile
org.wicketstuff.lambda.model.LambdaModel works fine, so what does not
compile in your example?
Did I miss something? :P
Sven
On 02.12.2015 08:53, Michael Mosmann wrote:
Hi,
Some first thoughts on this..
If we want to use lambdas for some kind of property model, the straight
forward way of doing this looks like:
SomeBean instance=new SomeBean();
IModel<String> model=Models.of(instance::getName,instance.setName);
But this will not work, if you have
IModel<SomeBean> instanceModel=...;
So then we could use:
IModel<String> model=Models.of(instanceModel, x-> x.getName() ,(x,v) ->
x.setName(v));
It is sad, that there is no way to get some kind of instance method
reference in java8.
What i would like to write is something like this:
IModel<String> model=Models.of(instanceModel, SomeBean::getName
,SomeBean::setName); // does not compile
IMHO the correct way to solve this looks a little strange, but is from
my point of view more consistent...
IModel<String> model=Models.of(instanceModel, x -> x::getName, x ->
x::setName)
the Method looks like this:
public <T,V> of(IModel<T> model, Function<T, Supplier<V>> getter,
Function<T, Consumer<V>> setter);
(* where Function, Supplier and Consumer must extends Serializable)
am i wrong? did i miss something? because i am far from happy with this..
mm:)
Am 01.12.2015 um 12:45 schrieb andrea del bene:
Ok, I'd like to play too :) ...
AFAIK we're still playing with lambdas. I still have a message I need
to send to dev@ regarding lambdas...
Martijn
On Mon, Nov 30, 2015 at 3:57 PM, Michael Mosmann <[email protected]>
wrote:
Hi,
AFAIK not.. I thought it is something like a playground. Am i wrong?
Michael
Am 30. November 2015 15:47:42 MEZ, schrieb andrea del bene
<[email protected]>:
Hi,
are we tracking changes to lambda branch with issues on JIRA?
Andrea.
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