Solved Access methods in different plugin

I have a custom currency plugin I created, and it has give-money, take money, etc. methods in it. Now, I need to access those methods in another plugin. I know this is possible, but I don't know how. Thanks!

 

Mysticate
If you have the .jar, than use it as library and add it to your build path, just like you did with the craftbukkit.jar
If you don't have it, you can use java reflection

 

GameplayJDK Yes I know that! I'm not a total noob But how would I access those methods?!

 

Get the plugin with PluginManager.getPlugin() and then cast it to whatever the main class of the plugin is.

 

garrison ok, but how would I do that? Can you post some code?

 

Mysticate
You'd import the classes you need and use them

 

There are javadocs.
http://jd.bukkit.org

 

Garrison

 

Mysticate
PluginManager (from the Beta docs)

 

GameplayJDK I understand how to get a plugin, but how do you cast it to the main class?

 

Mysticate
To call a method you have to use reflection since you do not know if there is a method like the one you are looking for in the plugins main..
But I prefer using it as library.
It's easier to call a method like that: de.GameplayJDK.AnyPlugin.PluginMain.theMagicMethod("Hello");

 

Mysticate
make the method static?

 

Mysticate

Code:

 PluginYouWant plugin = (PluginYouWant)PluginManager.getPlugin("PluginYouWantName");

This is a method in Java called typecasting and it's very useful when working with inheritance. Since the plugin class you are trying to get from the other plugin extends JavaPlugin (or whatever), you are able to typecast .getPlugin(), which typically returns an instance of JavaPlugin, to something that extends JavaPlugin, and in this case, PluginYouWant.class.

There's a lot of stuff about typecasting on google, but here is something useful
http://javarevisited.blogspot.com/2012/12/what-is-type-casting-in-java-class-interface-example.html

 

DrEinsteinium But how do I access a method in another class?

 

Mysticate
If it's private you can only access it with reflection (I'm not familiar with reflection..). If it's public you can access it by instantiating the class and then call it "new Theclass.methodYouWant()". If it's public static, just call it "Theclass.methodYouWant()"

 

GameplayJDK
Sure bit can you post code? I don't really understand where to put what you said or how to use it

 

Mysticate

Code:java

public class MyStuff {
 
// in case you have this:
private void doStuff() {
}
// you can only access doStuff() from within the same class
 
// in case you have this:
public void doStuff() {
}
//you can only access doStuff() like that:
new MyStuff().doStuff();
 
//in case you have this:
public static void doStuff() {
}
// You can access it from eveywhere:
MyStuff.doStuff();
 
}

 

GameplayJDK but can you do that from any plugin, given that you do the get plugin thing from above? And what happens if the plugin you're accessing it from and the plugin it's in have the same name?

 

Mysticate
You can do it limited I think. But in this case I'd use the other plugin as library. It's much easier then to use methods.

 

My methods are to take money, give it, check it, etc. how would I do that in a library GameplayJDK

 

Mysticate
1) In the plugin the methods to give/get/remove/... money are, make sure they are all public (or public static)
2) Export the plugin
3) Add it to the build path of the other one (like you did with the craftbukkit.jar)
4) Now you should be able to access the methods like shown above

 

GameplayJDK so I'd do the import plugin thing that someone mentioned before, then use your methods above?

 

Mysticate
Not exactly the same methods. They are samples for your methods in the other plugin. Samples for the methods you want to call.
You will call them like the methods from bukkit.

 

Code:java

 myexampleplugin plugin = (myexampleplugin)PluginManager.getPlugin("myesampleplugin");
new Money().TakeMoney();
 
^^ Is that how i'd do it from another plugin if the method takemoney was in Money?
 

GameplayJDK

I don't get it; it underlines the whole exampleplugin plugin thing... and when I do the new Money() thing, it just looks for a class inside the plugin i'm accessing it from.

Anyone?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Mysticate
Have you imported the class Money?

 

ExternalPlugin expl;
public void onEnable() {
expl = (ExternalPlugin) getPluginManager().getPlugin("ExternalPluginsName");
}

 

Barinade GameplayJDK Mysticate You should have a reference to the instance of Money in your main plugin class of your library. Try using code like this:

LibraryPlugin class (The main class of your library)

Code:

private Money money;
 
@Override
public void onEnable()
{
money = new Money();
}
 
public Money getMoneyInstance()
{
return this.money;
}

Your external plugin class (The main class of your plugin that is accessing your library)

Code:

LibraryPlugin moneyplugin;
@Override
public void onEnable()
{
  // Here is that example of typecasting.
  moneyplugin = (LibraryPlugin)this.getPluginManager().getPlugin("LibraryPluginName");
  // Now you have 'moneyplugin' as a reference to your library's class you can use it to access getMoneyInstace
  moneyplugin.getMoneyInstance().takeMoney();
}

I hope this clears things up for you.

 

YESSS IT WORKS!!!!!!!!!!!!

 

Mysticate I'm glad it worked out