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

java.lang.Object
  org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethods
      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