Reputation: 196
Does anyone know of an equivalent for Eclipse 4.4's Store information about method parameters (usable via reflection) compiler property in Intellij Idea 13 (or older, but I doubt it would be available)?
Edit: This link shows how to do it with maven, but I would still like to know how it's done in Idea Run Eclipse with M2 Maven build ignores "Store method parameter names" definition
Upvotes: 11
Views: 5401
Reputation: 5662
Try this to validate. I have copied it from the article.
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Parameter;
import static java.lang.System.out;
/**
* Uses JDK 8 Parameter class to demonstrate metadata related to the parameters
* of the methods and constructors of the provided class (includes private,
* protected, and public methods, but does not include methods inherited from
* parent classes; those classes should be individually submitted).
*
* @author Dustin
*/
public class Main {
private static void displayParametersMetadata(final String className) {
try {
final Class clazz = Class.forName(className);
// Get all class's declared methods (does not get inherited methods)
final Method[] declaredMethods = clazz.getDeclaredMethods();
for (final Method method : declaredMethods) {
writeHeader(
"Method " + method.toGenericString()
+ " has " + method.getParameterCount() + " Parameters:");
int parameterCount = 0;
final Parameter[] parameters = method.getParameters();
for (final Parameter parameter : parameters) {
out.println(
"\targ" + parameterCount++ + ": "
+ (parameter.isNamePresent() ? parameter.getName() : "Parameter Name not provided,")
+ (isParameterFinal(parameter) ? " IS " : " is NOT ")
+ "final, type " + parameter.getType().getCanonicalName()
+ ", and parameterized type of " + parameter.getParameterizedType()
+ " and " + (parameter.isVarArgs() ? "IS " : "is NOT ")
+ "variable.");
}
}
} catch (ClassNotFoundException cnfEx) {
out.println("Unable to find class " + className);
}
}
private static void writeHeader(final String headerText) {
out.println("\n==========================================================");
out.println("= " + headerText);
out.println("==========================================================");
}
/**
* Indicate whether provided Parameter is final.
*
* @param parameter Parameter to be tested for 'final' modifier.
* @return {@code true} if provided Parameter is 'final'.
*/
private static boolean isParameterFinal(final Parameter parameter) {
return Modifier.isFinal(parameter.getModifiers());
}
public static void main(final String[] arguments) {
displayParametersMetadata("TestProperties");
}
}
And the test class:
import java.util.List;
/**
* Created with IntelliJ IDEA.
* User: zpontikas
* Date: 7/10/2014
* Time: 17:02
*/
public class TestProperties {
public String getSomeStringValue(String thisIsAProperty) {
return thisIsAProperty;
}
public static List<Integer> getSomeLists(final List<Integer> anotherProName) {
return anotherProName;
}
public void manyProperties(final String onePropertyString,final int anotherIntProperty, final boolean thisIsBool) {
}
}
Upvotes: 18