de.javagl.common.beans

Class BeanUtils

java.lang.Object

de.javagl.common.beans.BeanUtils

public class BeanUtils
extends Object

Utility methods related to Java Beans

Method Summary

Modifier and Type	Method and Description
static String	getDescription(String propertyName) Converts the given property name into a description.
static List<String>	getMutablePropertyNamesOptional(Class<?> beanClass) Returns an unmodifiable list of all property names of the given bean class for which a read method and a write method exists.
static Class<?>	getPropertyTypeOptional(Class<?> beanClass, String propertyName) Returns the type of the property with the given name in the given bean class.
static Method	getReadMethodOptional(Class<?> beanClass, String propertyName) Returns the read method for the property with the given name in the given bean class.
static Method	getWriteMethodOptional(Class<?> beanClass, String propertyName) Returns the write method for the property with the given name in the given bean class.
static Object	invokeReadMethodOptional(Object bean, String propertyName) Invokes the read method for the property with the given name on the given object, and returns the result.
static void	invokeWriteMethodOptional(Object bean, String propertyName, Object value) Invokes the write-method on the given object for the property with the given name, passing in the given value.
static void	setAllOptional(Object targetBean, Object sourceBean) Set all properties of the target bean to the values obtained from the source bean.

Methods inherited from class java.lang.Object

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

Method Detail

setAllOptional

public static void setAllOptional(Object targetBean,
                                  Object sourceBean)

Set all properties of the target bean to the values obtained from the source bean.

This method will extract all properties of the target bean class using getMutablePropertyNamesOptional(Class). For each property, the corresponding read-method of the source bean class will be called to obtain the value. This value will then be passed to the target bean by calling the write-method for the property.

Any checked exception that may be thrown internally will silently be ignored.

Parameters:

targetBean - The target bean

sourceBean - The source bean

getDescription

public static String getDescription(String propertyName)

Converts the given property name into a description. This is done by converting the first letter to upper case, and inserting a space before each other upper case letter. For example, the propertyName inputFileName will be converted into the String Input File Name.

Parameters:

propertyName - The property name

Returns:

The description string for the property name.

invokeWriteMethodOptional

public static void invokeWriteMethodOptional(Object bean,
                                             String propertyName,
                                             Object value)

Invokes the write-method on the given object for the property with the given name, passing in the given value.

Any checked exception that may be thrown internally will silently be ignored.

Parameters:

bean - The object to call the method on

propertyName - The property name

value - The value to pass to the method

invokeReadMethodOptional

public static Object invokeReadMethodOptional(Object bean,
                                              String propertyName)

Invokes the read method for the property with the given name on the given object, and returns the result.

Any checked exception that may be thrown internally will silently be ignored, and null will be returned in this case.

Parameters:

bean - The object to invoke the method on

propertyName - The name of the property to query

Returns:

The result of the method invocation

getMutablePropertyNamesOptional

public static List<String> getMutablePropertyNamesOptional(Class<?> beanClass)

Returns an unmodifiable list of all property names of the given bean class for which a read method and a write method exists. If the bean class can not be introspected, an empty list will be returned.

Parameters:

beanClass - The bean class

Returns:

The property names

getPropertyTypeOptional

public static Class<?> getPropertyTypeOptional(Class<?> beanClass,
                                               String propertyName)

Returns the type of the property with the given name in the given bean class. Returns null if there is no such property, or the property is an indexed property that does not allow non-indexed access.

Parameters:

beanClass - The bean class

propertyName - The property name

Returns:

The type of the property, or null if there is no such property.

getWriteMethodOptional

public static Method getWriteMethodOptional(Class<?> beanClass,
                                            String propertyName)

Returns the write method for the property with the given name in the given bean class.

Parameters:

beanClass - The bean class

propertyName - The property name

Returns:

The write method, or null if no appropriate write method is found.

getReadMethodOptional

public static Method getReadMethodOptional(Class<?> beanClass,
                                           String propertyName)

Returns the read method for the property with the given name in the given bean class.

Parameters:

beanClass - The bean class

propertyName - The property name

Returns:

The read method for the property, or null if no appropriate read method is found.