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

java.lang.Object
  extended by org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethods
      extended by org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethodsInterceptor
All Implemented Interfaces:
ConstructorInterceptor, DynamicMethods, Interceptor, PropertyAccessInterceptor
Direct Known Subclasses:
GroovyDynamicMethodsInterceptor

public abstract class AbstractDynamicMethodsInterceptor
extends AbstractDynamicMethods
implements Interceptor, PropertyAccessInterceptor, ConstructorInterceptor

Implements an the Interceptor interface to add support for using ProxyMetaClass to define dynamic methods

Since:
Oct 24, 2005
Author:
Graeme Rocher

Field Summary
 
Fields inherited from class org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethods
clazz, dynamicConstructors, dynamicMethodInvocations, dynamicProperties, staticMethodInvocations
 
Constructor Summary
AbstractDynamicMethodsInterceptor()
           
AbstractDynamicMethodsInterceptor(Class theClass)
           
AbstractDynamicMethodsInterceptor(Class theClass, boolean inRegistry)
           
 
Method Summary
 Object afterConstructor(Object[] args, Object instantiatedInstance)
          Executed after the constructor passing the args and the instantiated instance
 Object afterInvoke(Object object, String methodName, Object[] arguments, Object result)
          This code is executed after the method is optionally called.
 Object beforeConstructor(Object[] args, InvocationCallback callback)
          Executed before the real constructor.
 Object beforeGet(Object object, String property, InvocationCallback callback)
          Intercepts a getXXX call and returns a result.
 Object beforeInvoke(Object target, String methodName, Object[] arguments, InvocationCallback callback)
          This code is executed before the method is optionally called.
 void beforeSet(Object object, String property, Object newValue, InvocationCallback callback)
          Intercepts a setXXX call
 
Methods inherited from class org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethods
addDynamicConstructor, addDynamicMethodInvocation, addDynamicProperty, addStaticMethodInvocation, getDynamicMethod, getDynamicProperty, getProperty, invokeConstructor, invokeMethod, invokeStaticMethod, setProperty
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

AbstractDynamicMethodsInterceptor

public AbstractDynamicMethodsInterceptor()

AbstractDynamicMethodsInterceptor

public AbstractDynamicMethodsInterceptor(Class theClass,
                                         boolean inRegistry)
                                  throws IntrospectionException
Throws:
IntrospectionException

AbstractDynamicMethodsInterceptor

public AbstractDynamicMethodsInterceptor(Class theClass)
                                  throws IntrospectionException
Throws:
IntrospectionException
Method Detail

afterConstructor

public Object afterConstructor(Object[] args,
                               Object instantiatedInstance)
Description copied from interface: ConstructorInterceptor
Executed after the constructor passing the args and the instantiated instance

Specified by:
afterConstructor in interface ConstructorInterceptor
Parameters:
args - The arguments
instantiatedInstance - The instantiated instance
Returns:
The instantiated or replaced instance

beforeConstructor

public Object beforeConstructor(Object[] args,
                                InvocationCallback callback)
Description copied from interface: ConstructorInterceptor
Executed before the real constructor. The callback object should be marked if invokation of the real constructor should be performed

Specified by:
beforeConstructor in interface ConstructorInterceptor
Parameters:
args - The constructor args
callback - The callback object
Returns:
The instantiated object or null

beforeInvoke

public Object beforeInvoke(Object target,
                           String methodName,
                           Object[] arguments,
                           InvocationCallback callback)
Description copied from interface: Interceptor
This code is executed before the method is optionally called.

Specified by:
beforeInvoke in interface Interceptor
Parameters:
target - receiver object for the method call
methodName - name of the method to call
arguments - arguments to the method call
callback - The callback object
Returns:
any arbitrary result that replaces the result of the original method call only if the callback object is marked relays this result.

afterInvoke

public Object afterInvoke(Object object,
                          String methodName,
                          Object[] arguments,
                          Object result)
Description copied from interface: Interceptor
This code is executed after the method is optionally called.

Specified by:
afterInvoke in interface Interceptor
Parameters:
object - receiver object for the called method
methodName - name of the called method
arguments - arguments to the called method
result - result of the executed method call or result of beforeInvoke if method was not called
Returns:
any arbitrary result that can replace the result of the original method call. Typically, the result parameter is returned.

beforeGet

public Object beforeGet(Object object,
                        String property,
                        InvocationCallback callback)
Description copied from interface: PropertyAccessInterceptor
Intercepts a getXXX call and returns a result. The result is replaced by the real value if doGet() return false

Specified by:
beforeGet in interface PropertyAccessInterceptor
Parameters:
object - The target object
property - The property to get
callback - The callback object
Returns:
A value supplied by the interceptor

beforeSet

public void beforeSet(Object object,
                      String property,
                      Object newValue,
                      InvocationCallback callback)
Description copied from interface: PropertyAccessInterceptor
Intercepts a setXXX call

Specified by:
beforeSet in interface PropertyAccessInterceptor
Parameters:
object - The target object
property - The property to set
newValue - The new value
callback - The callback object


Copyright (c) 2005-2006 The Grails project