Package pi.util

Class ReflectionUtil

java.lang.Object

pi.util.ReflectionUtil

public final class ReflectionUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static List<Field>	getAllFields(List<Field> fields, Class<?> type)	Recursively gets all fields of the specified type, respecting parent classes.
static <T> T	getDefaultValue(Class<T> clazz)
static Collection<Method>	getEvents(Class<?> type)	Gets the events for the specified type.
static <T> Field	getField(Class<T> cls, String fieldName)
static <T> Field	getField(Class<T> cls, String fieldName, boolean recursive)
static Method	getMethod(String name, Class<?> type, Class<?>... parameterTypes)	Recursively gets a method by the specified name respecting the parent classes and the parameters of the declaration.
static List<Method>	getMethodsAnnotatedWith(Class<?> type, Class<? extends Annotation> annotation)
static <T> Method	getSetter(Class<T> cls, String fieldName)
static <T> Collection<Method>	getSetters(Class<T> cls)
static <V> V	getStaticValue(Class<?> cls, String fieldName)
static <T, C> boolean	isWrapperType(Class<T> primitive, Class<C> potentialWrapper)
static <T> boolean	setEnumPropertyValue(Class<T> cls, Object instance, Field field, String propertyName, String value)
static <T> boolean	setFieldValue(Class<T> cls, Object instance, String fieldName, String value)
static <T, C> boolean	setValue(Class<C> cls, Object instance, String fieldName, T value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getField

public static <T> Field getField(Class<T> cls,
 String fieldName)

getField

public static <T> Field getField(Class<T> cls,
 String fieldName,
 boolean recursive)

getStaticValue

public static <V> V getStaticValue(Class<?> cls,
 String fieldName)

getAllFields

public static List<Field> getAllFields(List<Field> fields,
 Class<?> type)

Recursively gets all fields of the specified type, respecting parent classes.

Parameters:

fields - The list containing all fields.

type - The type to retrieve the fields from.

Returns:

All fields of the specified type, including the fields of the parent classes.

getMethod

public static Method getMethod(String name,
 Class<?> type,
 Class<?>... parameterTypes)

Recursively gets a method by the specified name respecting the parent classes and the parameters of the declaration.

Parameters:

name - The name of the method.

type - The type on which to search for the method.

parameterTypes - The types of the parameters defined by the method declaration.

Returns:

The found method or null if no such method exists.

setValue

public static <T,
C> boolean setValue(Class<C> cls,
 Object instance,
 String fieldName,
 T value)

setEnumPropertyValue

public static <T> boolean setEnumPropertyValue(Class<T> cls,
 Object instance,
 Field field,
 String propertyName,
 String value)

getSetter

public static <T> Method getSetter(Class<T> cls,
 String fieldName)

getSetters

public static <T> Collection<Method> getSetters(Class<T> cls)

isWrapperType

public static <T,
C> boolean isWrapperType(Class<T> primitive,
 Class<C> potentialWrapper)

setFieldValue

public static <T> boolean setFieldValue(Class<T> cls,
 Object instance,
 String fieldName,
 String value)

getMethodsAnnotatedWith

public static List<Method> getMethodsAnnotatedWith(Class<?> type,
 Class<? extends Annotation> annotation)

getEvents

public static Collection<Method> getEvents(Class<?> type)

Gets the events for the specified type.

This will search for all methods that have a parameter of type EventListener and match the LITIENGINE's naming conventions for event subscription (i.e. the method name starts with one of the prefixes "add" or "on".

Parameters:

type - The type to inspect the events on.

Returns:

All methods on the specified type that are considered to be events.

See Also:

• EventListener

getDefaultValue

public static <T> T getDefaultValue(Class<T> clazz)