reflection Archives - Page 7 of 7

Get property value from string using reflection

I am trying implement the Data transformation using Reflection1 example in my code. The GetSourceValue function has a switch comparing various types, but ...

April 15, 2022
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How to create a generic array in Java?

Due to the implementation of Java generics, you can’t have code like this: public class GenSet<E> { private E a...

April 14, 2022
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How do I use reflection to call a generic method?

What’s the best way to call a generic method when the type parameter isn’t known at compile time, but instead is obtained dynamically ...

April 14, 2022
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What is reflection and why is it useful?

What is reflection, and why is it useful? I’m particularly interested in Java, but I assume the principles are the same in any ...

April 10, 2022
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What is reflection and why is it useful?

The name reflection is used to describe code which is able to inspect other code in the same system (or itself). For example, ...

April 8, 2022
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Java Reflection – Object is not an instance of declaring class

April 5, 2022
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How to create a generic array in Java?

I have to ask a question in return: is your GenSet “checked” or “unchecked”? What does that mean? Checked: strong typing. GenSet knows explicitly what type of objects ...

April 5, 2022
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Instantiating object of type parameter

After type erasure, all that is known about T is that it is some subclass of Object. You need to specify some factory to create instances ...

April 5, 2022
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Reflection generic get field value

Like answered before, you should use: Object value = field.get(objectInstance); Another way, which is sometimes prefered, is calling the getter dynamically. example code: ...

April 4, 2022
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