Questions tagged [reflection]
Reflection is the process by which a program can observe and modify its own structure and behavior at runtime.
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Factory class that uses reflection to instantiate objects by class name
In this SO post Dynamically choose class from string Alexander Platonov creates a Function on the fly and then uses Application.Run() to instantiate an Object by ...
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Inherit docstrings from specified parent
I was recently working on some python where I was working with multiple inheritance and mixins and stuff like that, and I wanted to inherit docstrings for specific functions, from specific parents (...
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Dynamically creating login screen on Android devices
This has been an experience. I'm well above "hello world" java is not a language I use often when programming and I don't program too much. I find myself a lot on Google.... basically just about for ...
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Get n-th data member of a struct
To get n-th member of a struct without non-empty bases and w/o non-public members C++ now have a pretty way:
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Creating companion classes that are `inherited` onto any sub-classes
The idea for the code I have written came about due to the acts_as_versioned gem which automatically nests a Version class onto ...
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Enumerations via reflection in AS3
I'm very much used to enumerations a la Java, where each value in an enum is a distinct object. You can call functions on these objects, and they're generally ...
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Porting a web-based POS system to Android
I'm currently porting a web-based POS system to Android. The Android version uses NavigationDrawer to navigate between menus.
What I need a code review on is my ...
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Simple Java IoC container for dependency injection
I have come up with a quick and simple IoC container to enable minimal dependency injection support in one of my Java projects.
The container supports services with:
A transient lifetime, meaning, a ...
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Yet another reflection library
Tried to do my own implementation of reflection(introspection) for using in my next projects.
Is it optimized at compile time? If no, how can I improve it?
This macro is good interface for adapting ...
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Generic object-to-XML mapper
This code is part of a larger mapping library I'm working on to address some business concerns of transforming data. I was inspired by mapstruct in Java, but opted for users to annotate / add ...
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Scala code that loops through Java annotations decorating Scala classes
I have code written in Scala that reads annotations decorating other Scala classes. These annotations are written in Java. The sticking point is that annotations don't allow advanced data structures, ...
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Print Python docstrings when module is executed interactively
I have written a module, which should only be used by means of import, then call the functions as required.
I do not want this module to do anything when ran interactively, other than printing out ...
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Performance impact of using reflection instead of an "Options" class
I am trying to refactor a service by providing some options on what to bring back. I can't decide what is best way to go between the below
A. Use a class for the options
Create a new class for the ...
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Library/API: simple springboot / jdbc query builder and ORM
I have been using and developing a simple ORM and query builder library that I have found useful in it's practical application. I am pretty sure there are improvements to be made, and I welcome any ...
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Pagination links for various lists using Spring-HATEOAS
I'm using Spring HATEOAS to create some links on my REST API. However, the entities i'm returning are very close, so the code to generate the links are the same:
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Retrieving Primary Key from Entity Framework entity
Entity Framework (version 6) generates classes based on your tables that look like this (where each property represents a field in the table):
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'Tag' packages and make them discoverable
We have another team who is going to expose class packages for use to scan and pickup details from. If they should add some new packages or rename old ones I don't want to have to recode a thing. I am ...
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ORM with magic getters/setters
I'm playing around with PHP, trying to write a small ORM. Having worked with Magento quite a bit lately, I've fallen in love with the automagic getters/setters that Magento, I think, inherited from ...
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Entity Component System (ECS) in Java
While trying to write a game engine, I came up with this ECS / Component Based Architecture for its physics and drawing logic. I want to get some feedback on its architecture. I am using reflection ...
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Generics and aggregated evaluation of validation rules
I have a custom system for data validation; it handles anything from method parameters, return values, objects, etc. The core of this system is IValidationRule and ...
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C# MVC Generic Custom Model Binder
I recently created a custom model binder as a training exercise and wanted to see how I could improve it. It currently uses recursion and works great, but I was wondering how I could convert this to ...
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Generate random instance of given Class
I was running some rightsizing tests and had to blast random objects of my various class types. Here is the code I came up with.
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