Package com.storedobject.common

Class SimpleMethodInvoker

java.lang.Object

com.storedobject.common.SimpleMethodInvoker

All Implemented Interfaces:

MethodInvoker

public class SimpleMethodInvoker
extends Object
implements MethodInvoker

A class that implements the MethodInvoker functional interface to facilitate the invocation of specific methods from a given class. The class provides mechanisms to resolve and invoke methods based on naming conventions such as "get", "is", or direct method names. If the method cannot be found or any errors occur, the invocation defaults to a null operation.

Author:

Syam

Constructor Summary

Constructors

Constructor	Description
SimpleMethodInvoker(Class<?> objectClass, String name)	Constructs a SimpleMethodInvoker by attempting to resolve a method in the specified class using a series of naming conventions.
SimpleMethodInvoker(Method method)	Constructs a SimpleMethodInvoker instance by associating it with the specified Method.

Method Summary

Modifier and Type	Method	Description
String	getAttributeName()	Retrieves the name of an attribute associated with this method.
Class<?>	getReturnType()	Determines the return type of the `invoke` method defined in the implementing class.
Method	getTail()	Retrieves the tail method associated with the implementation.
Object	invoke(Object object)	Invokes a method on the provided object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.storedobject.common.MethodInvoker

function, function, invoke, string, string

Constructor Details

SimpleMethodInvoker

public SimpleMethodInvoker(Method method)

Constructs a SimpleMethodInvoker instance by associating it with the specified Method. This method will be used for invocation through the invoker instance.

Parameters:

method - the Method to be invoked. It must not be null.

SimpleMethodInvoker

public SimpleMethodInvoker(Class<?> objectClass,
 String name)

Constructs a SimpleMethodInvoker by attempting to resolve a method in the specified class using a series of naming conventions. It first tries to find a method prefixed with "get", then "is", and finally it attempts to locate a method with the exact provided name. If a matching method is found, it is used as the target for invocation; otherwise, the method field is set to null.

Parameters:

objectClass - the class from which the method will be resolved. It must not be null.

name - the base name of the method to resolve. This is expected to be the method name without the "get" or "is" prefix, if applicable. Must not be null or empty.

Method Details

getAttributeName

public String getAttributeName()

Description copied from interface: MethodInvoker

Retrieves the name of an attribute associated with this method.

Specified by:

getAttributeName in interface MethodInvoker

Returns:

a string representing the attribute name, or null if no attribute name is defined.

getTail

public Method getTail()

Description copied from interface: MethodInvoker

Retrieves the tail method associated with the implementation. The tail method typically represents an additional or final processing method in the context of the functional interface's behavior.

Specified by:

getTail in interface MethodInvoker

Returns:

the Method instance representing the tail method, or null if no such method is defined.

getReturnType

public Class<?> getReturnType()

Description copied from interface: MethodInvoker

Determines the return type of the `invoke` method defined in the implementing class. If the `invoke` method cannot be located or an exception occurs, defaults to returning String.class.

Specified by:

getReturnType in interface MethodInvoker

Returns:

the Class object representing the return type of the `invoke` method or String.class if the method is not found or an error occurs.

invoke

public Object invoke(Object object)

Description copied from interface: MethodInvoker

Invokes a method on the provided object.

Specified by:

invoke in interface MethodInvoker

Parameters:

object - the object on which the method is to be invoked

Returns:

the result of the method invocation, or null if the invocation fails