org.refcodes.runtime.utils

Class ReflectionUtility

java.lang.Object

org.refcodes.runtime.utils.ReflectionUtility

public final class ReflectionUtility
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReflectionUtility.BeanAttributeImpl Class describing a beans's attribute.
static class	ReflectionUtility.NonExistingValueClass This class indicates a non existing value in the name-to-value mapping

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALIAS_GET
static String	ALIAS_HAS
static String	ALIAS_IS
static String	ALIAS_SET
static String	ALIAS_TOSTRING
static ReflectionUtility.NonExistingValueClass	NON_EXISTING_VALUE

Method Summary

Modifier and Type	Method and Description
static boolean	hasGetterAttribute(Object anObject, String anAttributeName, Class<?> aReturnType) This method tests whether the given java beans getter attribute is found for the given object
static boolean	hasSetterAttribute(Object anObject, String anAttributeName, Class<?> anAttributeType) This method tests whether the given java beans setter attribute is found for the given object
static void	setAttribute(Object anObject, ReflectionUtility.BeanAttributeImpl anAttributeValueStruct) This method sets a java beans attribute for the given object.
static void	setAttribute(Object anObject, String anAttributeName, Object anAttributeValue) This method sets a java beans attribute for the given object.
static BeanAttribute[]	toBeanAttributes(Object anObject) This method uses reflection on order to analyze a given object.

Methods inherited from class java.lang.Object

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

Field Detail

ALIAS_SET

public static final String ALIAS_SET

See Also:

Constant Field Values

ALIAS_GET

public static final String ALIAS_GET

See Also:

Constant Field Values

ALIAS_HAS

public static final String ALIAS_HAS

See Also:

Constant Field Values

ALIAS_IS

public static final String ALIAS_IS

See Also:

Constant Field Values

ALIAS_TOSTRING

public static final String ALIAS_TOSTRING

See Also:

Constant Field Values

NON_EXISTING_VALUE

public static final ReflectionUtility.NonExistingValueClass NON_EXISTING_VALUE

Method Detail

toBeanAttributes

public static BeanAttribute[] toBeanAttributes(Object anObject)

This method uses reflection on order to analyze a given object. The java beans attributes and their values are retrieved and returned in an array of name-to-value pairs.

Parameters:

anObject - The object to be analyzed.

Returns:

An array of objects containing the java beans name-to-value pairs.

setAttribute

public static void setAttribute(Object anObject,
                                String anAttributeName,
                                Object anAttributeValue)
                         throws NoSuchMethodException

This method sets a java beans attribute for the given object. The corresponding java beans method must begin with a 'set', the following letter must be in upper case and it must only take one argument being of the same (or super-) type as the attribute's type.

Parameters:

anObject - The object which's java beans method is to be called.

anAttributeName - The attribute name of the java beans method.

anAttributeValue - The value of the attribute to be set.

Throws:

NoSuchMethodException - Description of the Exception

setAttribute

public static void setAttribute(Object anObject,
                                ReflectionUtility.BeanAttributeImpl anAttributeValueStruct)
                         throws NoSuchMethodException

This method sets a java beans attribute for the given object.

Parameters:

anObject - The object which's attribute is to be set.

anAttributeValueStruct - The name-to-value struct for the attrubute to be set.

Throws:

NoSuchMethodException - Description of the Exception

hasSetterAttribute

public static boolean hasSetterAttribute(Object anObject,
                                         String anAttributeName,
                                         Class<?> anAttributeType)

This method tests whether the given java beans setter attribute is found for the given object

Parameters:

anObject - The object which is to be tested.

anAttributeName - The attribute name.

anAttributeType - The expected (sub-) type of the attribute

Returns:

True if the object has a method with the given java beans name which can be called with an argument of the given type.

hasGetterAttribute

public static boolean hasGetterAttribute(Object anObject,
                                         String anAttributeName,
                                         Class<?> aReturnType)

This method tests whether the given java beans getter attribute is found for the given object

Parameters:

anObject - The object which is to be tested.

anAttributeName - The attribute name.

aReturnType - The expected (sub-) type of the return value

Returns:

True if the object has a method with the given java beans name which returns the given (super-) type.