org.apache.tapestry5.internal.plastic
Class AbstractMethodInvocation

java.lang.Object
  org.apache.tapestry5.internal.plastic.AbstractMethodInvocation

All Implemented Interfaces:

AnnotationAccess, MethodInvocation, MethodInvocationResult

public abstract class AbstractMethodInvocation
extends Object
implements MethodInvocation

Constructor Summary

protected

AbstractMethodInvocation(Object instance, InstanceContext instanceContext, MethodInvocationBundle bundle)

Method Summary

protected void	clearCheckedException() Invoked from the implementation of MethodInvocation.setReturnValue(Object).
boolean	didThrowCheckedException() Returns true if the method invocation threw a checked exception.
<T extends Annotation> T	getAnnotation(Class<T> annotationType) Returns an instantiated annotation, or null if the target does not have the indicated annotation.
<T extends Throwable> T	getCheckedException(Class<T> exceptionType) Retrieves the checked exception assignable to the indicated type, or null if the invocation did not throw a checked exception or the thrown exception is not assignable.
Object	getInstance() The instance on which the method was originally invoked.
InstanceContext	getInstanceContext()
Method	getMethod() Returns the method being invoked.
<T extends Annotation> boolean	hasAnnotation(Class<T> annotationType) Checks to see if the target has an annotation of the given type.
MethodInvocation	proceed() Proceed with the method invocation, either chaining into the next MethodAdvice added to the method, or ultimately into the actual method implementation.
protected abstract void	proceedToAdvisedMethod() This is implemented in a runtime-generated subclass.
void	rethrow() If the invocation threw a checked exception, then this method throws that exception wrapped as the cause of a new RuntimeException.
MethodInvocation	setCheckedException(Exception exception) Sets the checked exception; this can be used to indicate failure for the method, or to cancel the thrown exception (by setting the exception to null).

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.plastic.MethodInvocation

getParameter, setParameter, setReturnValue

Methods inherited from interface org.apache.tapestry5.plastic.MethodInvocationResult

getReturnValue

Constructor Detail

AbstractMethodInvocation

protected AbstractMethodInvocation(Object instance,
                                   InstanceContext instanceContext,
                                   MethodInvocationBundle bundle)

Method Detail

clearCheckedException

protected void clearCheckedException()

Invoked from the implementation of MethodInvocation.setReturnValue(Object).

rethrow

public void rethrow()

Description copied from interface: MethodInvocationResult

If the invocation threw a checked exception, then this method throws that exception wrapped as the cause of a new RuntimeException. Otherwise, this method does nothing.

Specified by:

rethrow in interface MethodInvocationResult

didThrowCheckedException

public boolean didThrowCheckedException()

Description copied from interface: MethodInvocationResult

Returns true if the method invocation threw a checked exception.

Specified by:

didThrowCheckedException in interface MethodInvocationResult

getCheckedException

public <T extends Throwable> T getCheckedException(Class<T> exceptionType)

Description copied from interface: MethodInvocationResult

Retrieves the checked exception assignable to the indicated type, or null if the invocation did not throw a checked exception or the thrown exception is not assignable.

Specified by:

getCheckedException in interface MethodInvocationResult

getInstance

public Object getInstance()

Description copied from interface: MethodInvocation

The instance on which the method was originally invoked.

Specified by:

getInstance in interface MethodInvocation

getInstanceContext

public InstanceContext getInstanceContext()

Specified by:

getInstanceContext in interface MethodInvocation

proceed

public MethodInvocation proceed()

Description copied from interface: MethodInvocation

Proceed with the method invocation, either chaining into the next MethodAdvice added to the method, or ultimately into the actual method implementation. The method may throw a checked exception, which will be caught and be reported as MethodInvocationResult.didThrowCheckedException().

Specified by:

proceed in interface MethodInvocation

Returns:

this method invocation, for a fluent API

setCheckedException

public MethodInvocation setCheckedException(Exception exception)

Description copied from interface: MethodInvocation

Sets the checked exception; this can be used to indicate failure for the method, or to cancel the thrown exception (by setting the exception to null).

Specified by:

setCheckedException in interface MethodInvocation

Parameters:

exception - new checked exception, or null

Returns:

this method invocation, for a fluent API

hasAnnotation

public <T extends Annotation> boolean hasAnnotation(Class<T> annotationType)

Description copied from interface: AnnotationAccess

Checks to see if the target has an annotation of the given type.

Specified by:

hasAnnotation in interface AnnotationAccess

getAnnotation

public <T extends Annotation> T getAnnotation(Class<T> annotationType)

Description copied from interface: AnnotationAccess

Returns an instantiated annotation, or null if the target does not have the indicated annotation.

Specified by:

getAnnotation in interface AnnotationAccess

getMethod

public Method getMethod()

Description copied from interface: MethodInvocation

Returns the method being invoked.

Specified by:

getMethod in interface MethodInvocation

proceedToAdvisedMethod

protected abstract void proceedToAdvisedMethod()

This is implemented in a runtime-generated subclass.