org.licas.util

Class ObjectInvoker

java.lang.Object

org.licas.util.ObjectInvoker

public class ObjectInvoker
extends java.lang.Object

This class provides methods to invoke an object method using reflection.

Author:

Kieran Greer

Constructor Summary

Constructors

Constructor and Description
ObjectInvoker()

Method Summary

Modifier and Type	Method and Description
static java.lang.Object	invokeMethod(MethodInfo methodInfo, java.lang.Object invokeObj) Use reflection to invoke the method.
static java.lang.reflect.Method	retrieveMethod(java.lang.Class objClass, java.lang.String methodName) Try to retrieve the method from the object, matching to the method name only.
static java.lang.reflect.Method	retrieveMethod(java.lang.Class objClass, java.lang.String methodName, java.lang.String replyClass) Try to retrieve the method from the object.
static java.lang.reflect.Method	retrieveMethod(java.lang.Class objClass, java.lang.String methodName, java.lang.String replyClass, java.util.ArrayList<java.lang.String> paramTypes) Try to retrieve the method from the object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectInvoker

public ObjectInvoker()

Method Detail

retrieveMethod

public static java.lang.reflect.Method retrieveMethod(java.lang.Class objClass,
                                                      java.lang.String methodName)
                                               throws java.lang.Exception

Try to retrieve the method from the object, matching to the method name only.

Parameters:

objClass - the class for the object that executes the method.

methodName - the method name.

Returns:

the method that matches the spec or null if none exists.

Throws:

java.lang.Exception - any error.

retrieveMethod

public static java.lang.reflect.Method retrieveMethod(java.lang.Class objClass,
                                                      java.lang.String methodName,
                                                      java.lang.String replyClass)
                                               throws java.lang.Exception

Try to retrieve the method from the object.

Parameters:

objClass - the class for the object that executes the method.

methodName - the method name.

replyClass - the reply type. This is optional.

Returns:

the method that matches the spec or null if none exists.

Throws:

java.lang.Exception - any error.

retrieveMethod

public static java.lang.reflect.Method retrieveMethod(java.lang.Class objClass,
                                                      java.lang.String methodName,
                                                      java.lang.String replyClass,
                                                      java.util.ArrayList<java.lang.String> paramTypes)

Try to retrieve the method from the object.

Parameters:

objClass - the class for the object that executes the method.

methodName - the method name.

replyClass - the reply type. This is optional.

paramTypes - list of parameter types. Can be empty.

Returns:

the method that matches the spec or null if none exists.

invokeMethod

public static java.lang.Object invokeMethod(MethodInfo methodInfo,
                                            java.lang.Object invokeObj)
                                     throws MethodNotFoundException,
                                            java.lang.Exception

Use reflection to invoke the method.

Parameters:

methodInfo - the method info details.

invokeObj - the object to invoke the method on.

Returns:

the result of the execution.

Throws:

MethodNotFoundException - for a method declaration mismatch.

java.lang.Exception - any other error.