Package com.jbstrap.core.utils

Class ReflectionUtils

java.lang.Object

com.jbstrap.core.utils.ReflectionUtils

public final class ReflectionUtils
extends Object

Since:

4.0

Author:

JBStrap

Method Summary

Modifier and Type	Method	Description
static boolean	calledFromMethod(String methodName)
static <T> T	getField(Object obj, String fieldName)
static Object	invoke(Object obj, String methodName, Object... params)
static void	setField(Object obj, String fieldName, Object data)

Methods inherited from class java.lang.Object

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

Method Details

setField

public static void setField(Object obj,
 String fieldName,
 Object data)

Parameters:

obj - The object where the value will be set

fieldName - The name of the field, that will have its value set

data - The value to be set

Throws:

IllegalStateException - If the field value couldn't be set

NullPointerException - If the object or field name was defined as null

getField

public static <T> T getField(Object obj,
 String fieldName)

Type Parameters:

T - The type of the returned value

Parameters:

obj - The source object

fieldName - The name of the field

Returns:

The field value

Throws:

NullPointerException - If the specified object value is null

IllegalStateException - If the field value was not found

invoke

public static Object invoke(Object obj,
 String methodName,
 Object... params)
                     throws NoSuchMethodException,
IllegalAccessException,
InvocationTargetException

Parameters:

obj - The object where the method will be used

methodName - The name of the method

params - The method parameters

Returns:

The methods return value

Throws:

NoSuchMethodException - If the specified method was not found

IllegalAccessException - If the invoking code has no access rights to the specified method

InvocationTargetException - If the target couldn't be found

calledFromMethod

public static boolean calledFromMethod(String methodName)

Parameters:

methodName - The name of the method

Returns:

true, if the method is in the chain, otherwise false