Package com.vaadin.swingkit.core

Class HandledInvocations

java.lang.Object

com.vaadin.swingkit.core.HandledInvocations

public class HandledInvocations
extends Object

Class to handle and synchronize calls from Swing app to Vaadin app. It registers available methods that can be called and deals with the invocation to the corresponding method.

Author:

Vaadin Ltd

Constructor Summary

Constructors

Constructor	Description
HandledInvocations()	Constructor of the class.

Method Summary

Modifier and Type	Method	Description
protected Method	descriptionToMethod(MethodDescription desc, ClassLoader cl)	Transform a MethodDescription and its related ClassLoader.
MethodDescription[]	getHandledInvocations()	Get the handled (registered) MethodDescription by this handler.
Object	invoke(MethodInvocation methodInvocation)	Calls the corresponding method invocation if it is found on the registered method descriptions of the handler.
boolean	isHandled(MethodInvocation methodInvocation)	Checks if the MethodInvocation is handled (registered) by the handler.
void	register(MethodDescription description, SwingVaadinInvocation<?> runner)	Register a pair MethodDescription and SwingVaadinInvocation
void	register(String className, String returnType, String methodName, String[] argTypes, SwingVaadinInvocation<?> runner)	Register a pair MethodDescription and SwingVaadinInvocation from the MethodDescription fields.

Methods inherited from class java.lang.Object

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

Constructor Details

HandledInvocations

public HandledInvocations()

Constructor of the class. It initializes the methodCache and registrations fields.

Method Details

register

public void register(MethodDescription description,
 SwingVaadinInvocation<?> runner)

Register a pair MethodDescription and SwingVaadinInvocation

Parameters:

description - MethodDescription describing the method to be invoked

runner - SwingVaadinInvocation that implements the invocation of the method

register

public void register(String className,
 String returnType,
 String methodName,
 String[] argTypes,
 SwingVaadinInvocation<?> runner)

Register a pair MethodDescription and SwingVaadinInvocation from the MethodDescription fields.

Parameters:

className - Class name of the method

returnType - Return type of the method

methodName - Method name

argTypes - Arguments types of the method

runner - SwingVaadinInvocation that implements the invocation of the method

invoke

public Object invoke(MethodInvocation methodInvocation)
              throws ClassNotFoundException,
IOException

Calls the corresponding method invocation if it is found on the registered method descriptions of the handler.

Parameters:

methodInvocation - MethodInvocation

Returns:

Result of the invocation

Throws:

ClassNotFoundException - If Class not found during invoke call

IOException - If IOException during invoke call

isHandled

public boolean isHandled(MethodInvocation methodInvocation)

Checks if the MethodInvocation is handled (registered) by the handler.

Parameters:

methodInvocation - MethodInvocation to discover if it is registered by the handler

Returns:

true if the MethodInvocation is already registered by the handler.

descriptionToMethod

protected Method descriptionToMethod(MethodDescription desc,
 ClassLoader cl)
                              throws ClassNotFoundException,
NoSuchMethodException

Transform a MethodDescription and its related ClassLoader. The class loader should be a SwingVaadinCallable.

Parameters:

desc - The MethodDescription of the method.

cl - The ClassLoader valid for the method.

Returns:

A Method related to the MethodDescription

Throws:

ClassNotFoundException - If the class cannot be retrieved from the MethodDescription and the ClassLoader

NoSuchMethodException - If a matching method is not found or if the name is "init"or "clinit".

getHandledInvocations

public MethodDescription[] getHandledInvocations()

Get the handled (registered) MethodDescription by this handler.

Returns:

The list of registered MethodDescription