Integeration of Spring MVC and Drools? [closed] - spring-mvc

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I am new to Drools and due to some specific generalization requirement, I have to implement JBoss Drools with Spring MVC project.I am totally unaware of how to get ahead with it. I would appreciate any tutorials as well as documentation to know about the integration and getting started process. Thanks

From my own experience, the drools-spring library didn't provide much benefit, and there were issues such as dependencies on specific versions of Spring.
In truth, there's very little integration involved in getting up and running with Drools in a Spring application. My approach is to just create a Spring bean to wrap a Drools knowledge base.
#Component(value="knowledgeService")
public class MyKnowledgeService {
private KnowledgeBase knowledgeBase;
private StatefulKnowledgeSession knowledgeSession;
...
The constructor can initialise the knowledge base and session (if you're using a stateful session). This way, you have a single Spring-managed instance of your knowledge base. Beyond that you just need to put a few methods on your service to enable interactions. These might just delegate to Drools operations. i.e. insert(Object) and fireAllRules().

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Can I use a third party view engine for Razor Pages? [closed]

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Although it is called Razor Pages for a reason I'm just wondering if it is possible to use a different view engine, say Spark Engine or any other View Engine you can think of.
I also wonder the same thing for Blazor.
Edit: This question was previously closed because it was thought that I was looking for recommendations. I'm not looking for recommendations, I want to learn if it is possible to change the view engine of a Razor Pages project.
There is a microsoft project that changes the rendering engine to use blazor for native platform apps.
It is in very early stage, but shows the possibilities.
https://learn.microsoft.com/en-us/mobile-blazor-bindings/
I believe it’s completly possible, but very complicated, considering that you are going to need rewrite all the bindings and connections that blazor offers.

Micronaut alternative for spring-integration [closed]

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I'm migrating a spring boot app to micronaut framework and I'm nearly done with it, the only missing piece is a micronaut alternative to spring-integration.
Basically I need to periodically scan a remote sftp server for files and then do some work on them.
In my spring boot app I'd just use spring-integration but I'd like to achieve this the micronaut way but I'm yet to find one.
Is there a micronaut specific way to handle files on sftp servers similar to spring-integration?
I'd like to avoid doing it "manually" via scheduled jobs if possbile.
Thanks for all the suggestions!
There is no library specific to Micronaut for this purpose that I'm aware of

portlet/servlet abstraction [closed]

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is there a good library, that abstracts the differences between servlets/portlets/ concerning views?
Specifically I want to be able to write a view once and use it in a simple webapp or in a portlet. It may be a tag library, or a template language or whatever there is.
It should make development dead simple and reuse possible and abstract things like servlet session/portlet session, renderRequest/servletRequest/
A portlet is a webapp. There could be some differences according to the Framework you use but you can write a "classic" java webapp then configure it to be a Portlet (with the portlet.xml and with a PortletBridge).
For example, if you use JSF, you can juste write a class which extends GenericPortlet and which will redirect each portlet action to your JSF lifecycle. You can use the JBoss PortletBridge for example.
There is also IceFaces for JSF portlets. But you can also use any Framework (Struts2, Struts, Vaadin etc.).
Hope it helps.

Eclipse RCP/RAP: Can anyone recommend a data-binding framework? [closed]

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I have been given the task of porting an Access application to Eclipse RCP/RAP. The databases will remain unchanged, just the front-end will be redeveloped.
Having spent some away from eclipse development, I'm wondering what kind of support is available for data-binding to databases. What about controls such as DataGrid (edit/insert/delete rows), multi-line list items and so on?
What frameworks are there? Which ones are still being actively developed?
Thanks!
I'm not aware of any possibility to bind widgets directly to a database. You'll need to build a Java representation of your database models. Depending on the size of your project, Hibernate or EclipseLink will be preferable to JDBC.
JFace provides data binding that is easy to include into an RCP application. And with Grid and NatTable, there are two SWT implementations of advanced tables available, but I don't know how well they are supported by JFace data binding. Check the nebula project for other advanced widgets.
Eclipse Riena also provides advanced data binding (by conveniently wrapping JFace), but this is only one of many features. There is an experimental implementation that allows to run Riena applications on RAP.

Where can I find a good detailed tutorial on the lifecycle of a page request? [closed]

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A good detailed tutorial on the lifecycle of a page request.
I've read up on the ASP.NET page lifecycle, I am talking about things that happened before the .NET process starts to handle the request.
i.e. domain typed into browser, DNS mapping? etc.
For Quick Reference:
I use the following chart all the time, it is hanging by my desk:
http://blog.krisvandermast.com/ASPNET20PageLifeCycle.aspx
As well as a detailed version of each stage:
http://john-sheehan.com/blog/wp-content/uploads/aspnet-life-cycles-events.pdf
I found this MSDN article really interesting, hope you like it too.
I would read ASP.NET Application Life Cycle Overview for IIS 5.0 and 6.0:
Within ASP.NET, several processing
steps must occur for an ASP.NET
application to be initialized and
process requests. Additionally,
ASP.NET is only one piece of the Web
server architecture that services
requests made by browsers. It is
important for you to understand the
application life cycle so that you can
write code at the appropriate life
cycle stage for the effect you intend.

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