Method

Method Manipulation using Mirror. Just to inform, method lookup is also done on superclasses.

Reflecting

Reflecting a method by name (will return null if not found):


Class clazz;

Method m = new Mirror().on(clazz).reflect().method("methodName").withoutArgs();

Reflect a method by arguments (will return null if not found):


Class clazz;

Method m = new Mirror().on(clazz).reflect().method("methodName")

           .withArgs(String.class, Object.class);

Reflecting a uniquely named method (will return null if not found or throw MirrorException if more than one is found):


Class clazz;

Method m = new Mirror().on(clazz).reflect().method("methodName").withAnyArgs();

Reflecting all methods of a class (will return an empty list if none found):


Class clazz;

List<Method> l = new Mirror().on(clazz).reflectAll().methods();

Reflecting all getters of a class (will return an empty list if none found):


Class clazz;

List<Method> l = new Mirror().on(clazz).reflectAll().getters();

Reflecting all setters of a class (will return an empty list if none found):


Class clazz;

List<Method> l = new Mirror().on(clazz).reflectAll().setters();

Reflecting all methods of class that matches a Matcher<Method> (will return an empty list if none found):


Class clazz;

List<Method> l = new Mirror().on(clazz).reflectAll()

                               .methods().matching(new YourCustomMatcher());

You can also map your methods to other types:


Class clazz;

List<String> l = new Mirror().on(clazz).reflectAll()

                           .methods().mappingTo(new YourMethodToStringMapper());

Invoking Methods

Invoking a static method:


Class clazz;

Object returnValue = new Mirror().on(clazz).invoke().method("methodName")

                     .withArgs(value1, value2);

Invoking an instance method:


Object target;

Object returnValue = new Mirror().on(target).invoke().method("methodName").withoutArgs();

You can also pass a java.lang.reflect.Method instead of a methodName String: Invoking an instance method:


Method aMethod;

Object target;

Object returnValue = new Mirror().on(target).invoke().method(aMethod)

                        .withArgs(value1, value2);

Invoking a setter method:


Field field;

Object target;

new Mirror().on(target).invoke().setterFor(field).withValue(value1);

new Mirror().on(target).invoke().setterFor("fieldName").withValue(value1);

Invoking a getter method:


Field field

Object target;

Object returnValue = new Mirror().on(target).invoke().getterFor(field);

Object returnValue = new Mirror().on(target).invoke().getterFor("fieldName");