org.springframework.extensions.surf

Class ModelHelper

java.lang.Object

org.springframework.extensions.surf.ModelHelper

public final class ModelHelper
extends Object

Static Utility class that provides reflection against the public properties of a given object.

This class provides methods for checking whether a given property name is declared as a model variable.

Model variables are defined on ModelObject derived types as variables that begin with a "PROP_" prefix.

The code walks the class chain and picks out which variables are model specific and which ones are custom. The results are stored in look-up tables so that subsequent lookups will simply hit the cache. This is perfectly fine since model definitions do not change at runtime.

Author:

muzquiano, kevinr

Constructor Summary

Constructors

Constructor and Description
ModelHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isCustomProperty(ModelObject object, String propertyName) Determines whether the given property is a custom property for the given object
static boolean	isModelProperty(ModelObject object, String propertyName) Determines whether the given property is a non-custom (or model) property for the given object.
static String	newGUID() Builds a new GUID
static void	resetId(ModelObject object, String id) Allows model object ids to be set manually

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelHelper

public ModelHelper()

Method Detail

isCustomProperty

public static boolean isCustomProperty(ModelObject object,
                       String propertyName)

Determines whether the given property is a custom property for the given object

Parameters:

object - the object

propertyName - the property name

Returns:

true, if is custom property

isModelProperty

public static boolean isModelProperty(ModelObject object,
                      String propertyName)

Determines whether the given property is a non-custom (or model) property for the given object.

Parameters:

object - the object

propertyName - the property name

Returns:

true, if is model property

newGUID

public static String newGUID()

Builds a new GUID

Returns:

the string

resetId

public static void resetId(ModelObject object,
           String id)

Allows model object ids to be set manually

Parameters:

object - ModelObject

id - String