yakworks.commons.lang

Class ReflectionUtils

java.lang.Object

yakworks.commons.lang.ReflectionUtils

public class ReflectionUtils
extends java.lang.Object

Provides methods to help with reflective operations

Since:

1.0

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.Map<java.lang.Class<?>,java.lang.Class<?>>	PRIMITIVE_TYPE_COMPATIBLE_CLASSES

Constructor Summary

Constructors

Constructor and Description
ReflectionUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	isAssignableFrom(java.lang.Class<?> leftType, java.lang.Class<?> rightType) Tests whether or not the left hand type is compatible with the right hand type in Groovy terms, i.e.
static boolean	isGetter(java.lang.String name, java.lang.Class<?>[] args) Returns true if the name of the method specified and the number of arguments make it a javabean property
static boolean	isSetter(java.lang.String name, java.lang.Class[] args)
static void	makeAccessible(java.lang.reflect.Field field) Make the given field accessible, explicitly setting it accessible if necessary.
static void	makeAccessible(java.lang.reflect.Method method) Make the given method accessible, explicitly setting it accessible if necessary.

Methods inherited from class java.lang.Object

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

Field Detail

PRIMITIVE_TYPE_COMPATIBLE_CLASSES

public static final java.util.Map<java.lang.Class<?>,java.lang.Class<?>> PRIMITIVE_TYPE_COMPATIBLE_CLASSES

Constructor Detail

ReflectionUtils

public ReflectionUtils()

Method Detail

makeAccessible

public static void makeAccessible(java.lang.reflect.Field field)

Make the given field accessible, explicitly setting it accessible if necessary. The setAccessible(true) method is only called when actually necessary, to avoid unnecessary conflicts with a JVM SecurityManager (if active). Based on the same method in Spring core.

Parameters:

field - the field to make accessible

See Also:

AccessibleObject.setAccessible(java.lang.reflect.AccessibleObject[], boolean)

makeAccessible

public static void makeAccessible(java.lang.reflect.Method method)

Make the given method accessible, explicitly setting it accessible if necessary. The setAccessible(true) method is only called when actually necessary, to avoid unnecessary conflicts with a JVM SecurityManager (if active). Based on the same method in Spring core.

Parameters:

method - the method to make accessible

See Also:

AccessibleObject.setAccessible(java.lang.reflect.AccessibleObject[], boolean)

isAssignableFrom

public static boolean isAssignableFrom(java.lang.Class<?> leftType,
                                       java.lang.Class<?> rightType)

Tests whether or not the left hand type is compatible with the right hand type in Groovy terms, i.e. can the left type be assigned a value of the right hand type in Groovy.

This handles Java primitive type equivalence and uses isAssignableFrom for all other types, with a bit of magic for native types and polymorphism i.e. Number assigned an int. If either parameter is null an exception is thrown

Parameters:

leftType - The type of the left hand part of a notional assignment

rightType - The type of the right hand part of a notional assignment

Returns:

True if values of the right hand type can be assigned in Groovy to variables of the left hand type.

isGetter

public static boolean isGetter(java.lang.String name,
                               java.lang.Class<?>[] args)

Returns true if the name of the method specified and the number of arguments make it a javabean property

Parameters:

name - True if its a Javabean property

args - The arguments

Returns:

true if it is a javabean property method

isSetter

public static boolean isSetter(java.lang.String name,
                               java.lang.Class[] args)