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Arrays of methods

Posted on 1997-05-26
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Last Modified: 2010-05-18
How would you implement an array of methods? I have tried getMethods() & invoke() but can't get that to work. Are there other ways of doing it?
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Question by:pdrake
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5 Comments
 
LVL 6

Expert Comment

by:jpk041897
ID: 1220907
Both class and method are mannaged as pointer internaly, have you tried storing the value for this.method in an array of Objects?


0
 
LVL 1

Expert Comment

by:mlimotte
ID: 1220908
You can make an interface with a single method:

public interface MethodInterface {
   public myMethod(String[] args);
}

and then make an array of Objects that implement the method.

MethodInterface[] methodArray = new MethodInterface[10];

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LVL 6

Expert Comment

by:jpk041897
ID: 1220909
Take a look at:

http://www.panix.com/~rangerx/packages.html

it has a class library that will probably help a lot.

Let me know if it solves your problem.
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Accepted Solution

by:
hosseinakhlaghpour earned 50 total points
ID: 1220910

You should instantiate the class and passed the parameters as an object[]
The following is some part of my code which works fine.

class2load = Class.forName(...);
classInstance = class2load.newInstance();

If the method does not get any parameter you can leave the params=null

      Object[] params = null;

      ......
      .......

      Method classMethod = null;
      Method[] classMethods = class2load.getMethods();

      for(int indx4classMethods = 0; indx4classMethods != classMethods.length; indx4classMethods++)
      {
            if(classMethods[indx4classMethods].getName().equals(methodName))
            {
                  classMethod = classMethods[indx4classMethods];
            }
      }

      Object returnObject = classMethod.invoke(classInstance, params);

0
 

Author Comment

by:pdrake
ID: 1220911
This seems a little messy. While I was waiting for an answer I figured out how to implement the array of methods I needed with an interface instead of .reflect and .Class. It's probably less powerful but perfectly satisfies my requirements. Thank you.
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