jlibs.core.lang
Class BeanUtil

java.lang.Object
  jlibs.core.lang.BeanUtil

public class BeanUtil
extends Object

This class contains helper methods for working with java beans

Author:

Santhosh Kumar T

Field Summary

static String	GET prefix used by non-boolean getter methods
static String	IS prefix used by boolean getter methods
static String	SET prefix used by setter methods

Constructor Summary

BeanUtil()

Method Summary

static Method	getGetterMethod(Class<?> beanClass, String property) Returns getter method for property in specified beanClass
static Method	getGetterMethod(Class<?> beanClass, String property, Class propertyType) Returns getter method for property in specified beanClass
static String	getMethodSuffix(String property)
static <T> T	getProperty(Object bean, String property) Returns the value of the specified property in given bean
static String	getPropertyName(String methodName)
static Class	getPropertyType(Class<?> beanClass, String property) Returns the type of property in given beanClass
static Method	getSetterMethod(Class<?> beanClass, String property) Returns setter method for property in specified beanClass
static Method	getSetterMethod(Class<?> beanClass, String property, Class propertyType) Returns setter method for property in specified beanClass
static void	setProperty(Object bean, String property, Object value) Sets the value of the specified property in given bean

Methods inherited from class java.lang.Object

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

Field Detail

GET

public static final String GET

prefix used by non-boolean getter methods

See Also:

Constant Field Values

IS

public static final String IS

prefix used by boolean getter methods

See Also:

Constant Field Values

SET

public static final String SET

prefix used by setter methods

See Also:

Constant Field Values

Constructor Detail

BeanUtil

public BeanUtil()

Method Detail

getMethodSuffix

public static String getMethodSuffix(String property)

getPropertyName

public static String getPropertyName(String methodName)

getGetterMethod

public static Method getGetterMethod(Class<?> beanClass,
                                     String property)

Returns getter method for property in specified beanClass

Parameters:

beanClass - bean class

property - name of the property

Returns:

getter method. null if property is not found

See Also:

getGetterMethod(Class, String, Class)

getGetterMethod

public static Method getGetterMethod(Class<?> beanClass,
                                     String property,
                                     Class propertyType)

Returns getter method for property in specified beanClass

Parameters:

beanClass - bean class

property - name of the property

propertyType - type of the property. This is used to compute getter method name.

Returns:

getter method. null if property is not found

See Also:

getGetterMethod(Class, String)

getSetterMethod

public static Method getSetterMethod(Class<?> beanClass,
                                     String property)

Returns setter method for property in specified beanClass

Parameters:

beanClass - bean class

property - name of the property

Returns:

setter method. null if property is not found, or it is readonly property

See Also:

getSetterMethod(Class, String, Class)

getSetterMethod

public static Method getSetterMethod(Class<?> beanClass,
                                     String property,
                                     Class propertyType)

Returns setter method for property in specified beanClass

Parameters:

beanClass - bean class

property - name of the property

propertyType - type of the property. This is used to compute setter method name.

Returns:

setter method. null if property is not found, or it is readonly property

See Also:

getSetterMethod(Class, String)

getPropertyType

public static Class getPropertyType(Class<?> beanClass,
                                    String property)

Returns the type of property in given beanClass

Parameters:

beanClass - bean class

property - name of the property

Returns:

null if the property is not found. otherwise returns the type of the property

getProperty

public static <T> T getProperty(Object bean,
                                String property)
                     throws InvocationTargetException

Returns the value of the specified property in given bean

Parameters:

bean - bean object

property - property name whose value needs to be returned

Returns:

value of the property.

Throws:

InvocationTargetException - if method invocation fails

NullPointerException - if property is not found in bean

setProperty

public static void setProperty(Object bean,
                               String property,
                               Object value)
                        throws InvocationTargetException

Sets the value of the specified property in given bean

Parameters:

bean - bean object

property - property name whose value needs to be set

value - value to be set

Throws:

InvocationTargetException - if method invocation fails

NullPointerException - if property is not found in bean or it is readonly property