Java Question Create static libraries

[corwin42]

With B4A 2.50 it is possible to compile code modules to a library and the methods in it can be called in a static way (you don't need to Dim an object to call these methods)

I think this is possible because of the class declaration in the xml:

<class b4a_type="StaticCode">

Is this supported somehow by the BADoclet.class or will there be a newer version of it so we can create static methods for our own libraries and we don't need to Dim a dummy object for calling such methods?

 

[Erel]

There is no change. You cannot (safely) use this attribute from a Java library.

You can create static methods and access them with instance variables. I don't see any major advantage for accessing these methods from the type directly.

 

[corwin42]

I think the only advantage would be that you don't need the Dim for the instance variable.

I just wondered if it is possible because I created a class with only static methods in it and there is no possibility to call them "the static way" but it is possible when you create a library from a code module.

 

[zolive33]

I think the only advantage would be that you don't need the Dim for the instance variable.

I just wondered if it is possible because I created a class with only static methods in it and there is no possibility to call them "the static way" but it is possible when you create a library from a code module.

Yes it's possible (I just tried). Under Eclipse, in xml file, you have to modify the definition of the class by adding b4a_type="StaticCode". I think that all objects must static.

:sign0013: I'm not good in english!

Example :

ZOTest.java

import anywheresoftware.b4a.BA.ShortName;

@ShortName("ZOTest")

public class ZOTest
{
  public static final int Var_A = 1;
  public static final int Var_B = 2;
}

MyLib.xml

<class b4a_type="StaticCode">
        <name>zolive33.b4a.Library.MyLib.ZOTest</name>
        <shortname>ZOTest</shortname>
        <owner>process</owner>
        <field>
            <name>Var_B</name>
            <comment></comment>
            <returntype>int</returntype>
        </field>
        <field>
            <name>Var_A</name>
            <comment></comment>
            <returntype>int</returntype>
        </field>
    </class>

B4A :

Msgbox ("test : " & ZOTest.Var_B ,"OK")