org.codehaus.groovy.grails.commons.metaclass
Class WeakGenericDynamicProperty

java.lang.Object
  org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicProperty
      org.codehaus.groovy.grails.commons.metaclass.WeakGenericDynamicProperty

All Implemented Interfaces:

DynamicProperty

public class WeakGenericDynamicProperty
extends AbstractDynamicProperty

A generic dyanmic property for any type used a soft hashmap implementation for generic properties registered as global in the MetaClass

Since:

Oct 27, 2005

Author:

Graeme Rocher

Constructor Summary

WeakGenericDynamicProperty(String propertyName, Class type, boolean readOnly)

WeakGenericDynamicProperty(String propertyName, Class type, FunctionCallback initialValueGenerator, boolean readOnly)
Variant that allows supply of a lazy-initialization function for the initial value.

WeakGenericDynamicProperty(String propertyName, Class type, Object initialValue, boolean readOnly)

Method Summary

Object	get(Object object) Call the getter on the given object
void	set(Object object, Object newValue) Call the setter on the given object

Methods inherited from class org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicProperty

getPropertyName, isPropertyMatch

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakGenericDynamicProperty

public WeakGenericDynamicProperty(String propertyName,
                                  Class type,
                                  Object initialValue,
                                  boolean readOnly)

Parameters:

propertyName - The name of the property

type - The type of the property

initialValue - The initial value of the property

readOnly - True for read-only property

WeakGenericDynamicProperty

public WeakGenericDynamicProperty(String propertyName,
                                  Class type,
                                  boolean readOnly)

Parameters:

propertyName - The name of the property

type - The type of the property

readOnly - True for read-only property

WeakGenericDynamicProperty

public WeakGenericDynamicProperty(String propertyName,
                                  Class type,
                                  FunctionCallback initialValueGenerator,
                                  boolean readOnly)

Variant that allows supply of a lazy-initialization function for the initial value.

This function is called only on the first access to the property for a given object, unless the function returns null in which case it will be called again if another request is made.

Parameters:

propertyName - The name of the property

type - The type of the property

readOnly - True for read-only property

initialValueGenerator - Callback function which will be called for initial value of property

Method Detail

get

public Object get(Object object)

Description copied from interface: DynamicProperty

Call the getter on the given object

Specified by:

get in interface DynamicProperty

Specified by:

get in class AbstractDynamicProperty

Parameters:

object - The target object

Returns:

The result of the getter

set

public void set(Object object,
                Object newValue)

Description copied from interface: DynamicProperty

Call the setter on the given object

Specified by:

set in interface DynamicProperty

Specified by:

set in class AbstractDynamicProperty

Parameters:

object - The target object

newValue - The new value of the property