org.apache.tapestry5.internal.services
Class AbstractComponentMethodInvocation

java.lang.Object
  org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation

All Implemented Interfaces:

Invocation, ComponentResourcesAware, ComponentMethodInvocation

public abstract class AbstractComponentMethodInvocation
extends Object
implements ComponentMethodInvocation

Constructor Summary

AbstractComponentMethodInvocation(ComponentMethodInvocationInfo info, ComponentResources resources)

Method Summary

ComponentResources	getComponentResources() Returns the resources associated with this component class.
String	getMethodName() Returns the name of the method being invoked.
int	getParameterCount() Returns the number of parameters passed to the method.
Class	getParameterType(int index) Returns the type of the parameter at the index.
Object	getResult() The return value after Invocation.proceed(), which may be null.
Class	getResultType() Returns the type of the method result, which may be a primitive type (i.e., int.class) or even void (void.class).
<T extends Throwable> T	getThrown(Class<T> throwableClass) After invoking Invocation.proceed(), used to obtain the thrown (checked) exception, if assignable to the provided type.
protected abstract void	invokeAdvisedMethod() Implemented to reinvoke the method on the advised method of the component.
boolean	isFail() If true, then the proceeded invocation threw a checked exception.
void	overrideResult(Object newResult) Overrides the result.
void	overrideThrown(Exception thrown) Overrides the thrown exception.
void	proceed() This first call is to the first advice.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tapestry5.ioc.Invocation

getParameter, override

Constructor Detail

AbstractComponentMethodInvocation

public AbstractComponentMethodInvocation(ComponentMethodInvocationInfo info,
                                         ComponentResources resources)

Method Detail

getComponentResources

public ComponentResources getComponentResources()

Description copied from interface: ComponentResourcesAware

Returns the resources associated with this component class.

Specified by:

getComponentResources in interface ComponentResourcesAware

getMethodName

public String getMethodName()

Description copied from interface: Invocation

Returns the name of the method being invoked.

Specified by:

getMethodName in interface Invocation

getResultType

public Class getResultType()

Description copied from interface: Invocation

Returns the type of the method result, which may be a primitive type (i.e., int.class) or even void (void.class).

Specified by:

getResultType in interface Invocation

getParameterCount

public int getParameterCount()

Description copied from interface: Invocation

Returns the number of parameters passed to the method.

Specified by:

getParameterCount in interface Invocation

getParameterType

public Class getParameterType(int index)

Description copied from interface: Invocation

Returns the type of the parameter at the index.

Specified by:

getParameterType in interface Invocation

proceed

public void proceed()

This first call is to the first advice. When we run out of advice, we re-invoke.

Specified by:

proceed in interface Invocation

invokeAdvisedMethod

protected abstract void invokeAdvisedMethod()

Implemented to reinvoke the method on the advised method of the component.

isFail

public boolean isFail()

Description copied from interface: Invocation

If true, then the proceeded invocation threw a checked exception.

Specified by:

isFail in interface Invocation

getThrown

public <T extends Throwable> T getThrown(Class<T> throwableClass)

Description copied from interface: Invocation

After invoking Invocation.proceed(), used to obtain the thrown (checked) exception, if assignable to the provided type.

Specified by:

getThrown in interface Invocation

Parameters:

throwableClass - the type of exception to match

Returns:

the exception, if the proceeded invocation threw a checked exception, and the exception is assignable to the provided type. In other cases, null is returned.

overrideThrown

public void overrideThrown(Exception thrown)

Description copied from interface: Invocation

Overrides the thrown exception. The passed exception should be a checked exception of the method. Note that for runtime exceptions, or even Errors, those can just be thrown. Sets the fail flag.

Specified by:

overrideThrown in interface Invocation

getResult

public Object getResult()

Description copied from interface: Invocation

The return value after Invocation.proceed(), which may be null.

Specified by:

getResult in interface Invocation

overrideResult

public void overrideResult(Object newResult)

Description copied from interface: Invocation

Overrides the result. Clears the thrown exception (if any).

Specified by:

overrideResult in interface Invocation