de.alpharogroup.reflection

Class ReflectionUtils

java.lang.Object

de.alpharogroup.reflection.ReflectionUtils

public final class ReflectionUtils
extends Object

The Class ReflectionUtils.

Version:

1.0

Author:

Asterios Raptis

Constructor Summary

Constructors

Constructor and Description
ReflectionUtils()

Method Summary

Modifier and Type	Method and Description
static List<String>	getFieldNames(Class<?> cls) Gets all fieldnames from the given class as an String array.
static String[]	getMethodNames(Class<?> cls) Gets all methodnames from the given class as an String array.
static Map<String,String>	getMethodNamesWithPrefixFromFieldNames(List<String> fieldNames, String prefix) Generates a Map with the fieldName as key and the method as value.
static List<String>	getModifiers(Field field) Gets the modifiers from the given Field as a list of String objects.
static Object	getNewInstance(Object obj) Creates a new instance from the same type as the given object.
static <T> T	newInstance(Class<T> clazz) Creates a new instance from the same type as the given Class.
static <T> T	newInstance(T obj) Creates a new instance from the same type as the given object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtils

public ReflectionUtils()

Method Detail

getFieldNames

public static List<String> getFieldNames(Class<?> cls)

Gets all fieldnames from the given class as an String array.

Parameters:

cls - The class object to get the fieldnames.

Returns:

Gets all fieldnames from the given class as an String array.

getMethodNames

public static String[] getMethodNames(Class<?> cls)

Gets all methodnames from the given class as an String array.

Parameters:

cls - The class object to get the methodnames.

Returns:

Gets all methodnames from the given class as an String array.

getMethodNamesWithPrefixFromFieldNames

public static final Map<String,String> getMethodNamesWithPrefixFromFieldNames(List<String> fieldNames,
                                                                              String prefix)

Generates a Map with the fieldName as key and the method as value. Concatenates the given prefix and the fieldname and puts the result into the map.

Parameters:

fieldNames - A list with the fieldNames.

prefix - The prefix for the methodname.

Returns:

the method names with prefix from field names

getModifiers

public static List<String> getModifiers(Field field)

Gets the modifiers from the given Field as a list of String objects.

Parameters:

field - The field to get the modifiers.

Returns:

A list with the modifiers as String objects from the given Field.

getNewInstance

public static Object getNewInstance(Object obj)
                             throws ClassNotFoundException,
                                    InstantiationException,
                                    IllegalAccessException

Creates a new instance from the same type as the given object.

Parameters:

obj - the obj

Returns:

the new instance

Throws:

ClassNotFoundException - the class not found exception

InstantiationException - the instantiation exception

IllegalAccessException - the illegal access exception

newInstance

public static <T> T newInstance(Class<T> clazz)
                         throws InstantiationException,
                                IllegalAccessException,
                                ClassNotFoundException

Creates a new instance from the same type as the given Class.

Type Parameters:

T - the generic type

Parameters:

clazz - the Class object

Returns:

the new instance

Throws:

ClassNotFoundException - the class not found exception

InstantiationException - the instantiation exception

IllegalAccessException - the illegal access exception

newInstance

public static <T> T newInstance(T obj)
                         throws InstantiationException,
                                IllegalAccessException,
                                ClassNotFoundException

Creates a new instance from the same type as the given object.

Type Parameters:

T - the generic type

Parameters:

obj - the obj

Returns:

the new instance

Throws:

ClassNotFoundException - the class not found exception

InstantiationException - the instantiation exception

IllegalAccessException - the illegal access exception