![]() Given a class name and an indication of which members are of interest, theĬlassSpy example uses the get*s() methods to determine the list of all public elements, including any which are inherited. This example is relatively compact however the printMembers() method is slightly awkward due to the fact that the interface has existed since the earliest implementations of reflection and it could not be modified to include the more useful getGenericString() method when generics were introduced. setUrls (ClasspathHelper.forJavaClassPath ()) ) Set types reflections.getTypesAnnotatedWith (Scannable.class) Share Improve this answer Follow edited at 12:48 Apurv 3,713 3 30 51 answered at 8:25 Renato 12.Example of Reflection API ReflectionDemo. Example: Reflections reflections new Reflections ( new ConfigurationBuilder (). Below is the simple example to demonstrate the usage of this concept. The following tables provide a summary of all the member-locating methods and their characteristics.Ĭlass Methods for Locating Fields Class APIĬlass Methods for Locating Methods Class APIĬlass Methods for Locating Constructors Class API Since we see the basic theoretical concept about the reflection so itâs a good time to take an example for better understanding. We may choose to add consistency by prefixing our table names with tbl so that a table with student data is called tblstudentdata. For instance, in many cases, we have a naming convention for database tables. Also there are distinct methods for accessing members declared directly on the class versus methods which search the superinterfaces and superclasses for inherited members. Java reflection is extremely powerful and can come in very handy in a number of ways. Reflection is a runtime API for inspecting and changing the behavior of methods, classes, and interfaces. ![]() ![]() There are two categories of methods provided inĬlass for accessing fields, methods, and constructors: methods which enumerate these members and methods which search for particular members.
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