Java Question Simple Library Compiler and @DependsOn

[canalrun]

Hello,
I am using the Simple Library Compiler to build a wrapper for Amazon ads. I'm basing everything on the AdMob wrapper source code posted by Erel several years ago.

I need to reference an external jar. I see the @DependsOn attribute to include in the Java file. However when I add this to the Java file and compile in the Simple Library Compiler I receive the following error (the image below shows the Simple Library Compiler and output).

Starting step: Compiling Java code.
javac 1.7.0_45
C:\Users\Barry\AndroidDev\Basic4Android\SimpleLibraryCompiler\AmazonAds\src\canalrun\b4a\amznwrapper\AMZNWrapper.java:29: error: cannot find symbol
@DependsOn(values={"amazon-ads"})
^
  symbol: class DependsOn
1 error

Error.

I have also attached my Java file. Below is the portion that generates the error.

@Version(1.0f)
@ShortName("AmznAd")
@Events(values={"ReceiveAd", "FailedToReceiveAd (ErrorCode As String)"})
@ActivityObject
@DontInheritEvents
@Permissions(values={"android.permission.INTERNET", "android.permission.ACCESS_NETWORK_STATE"})
@DependsOn(values={"amazon-ads"})

public class AMZNWrapper extends ViewWrapper<AdLayout> {
    private AdLayout adView; // The ad view used to load and display the ad.
    private static final String LOG_TAG = "AMZNWrapper"; // Tag used to prefix all log messages

Thanks any help.
Barry.

 

[giga]

is amazon-ads in your libs folder?

 

[canalrun]

is amazon-ads in your libs folder?

Thanks. Yep.

The purpose of the @DependsOn attribute within the .java source file is to generate a dependency referencing an external jar within the output XML file?

For example, in my case, the XML file output by the Simple Library Compiler should include the line:

    <dependsOn>amazon-ads</dependsOn>

If I manually add this line to the XML file, everybody is happy. The external library is found and the wrapper I am developing works (sort of).

I'm either doing something wrong or the Simple Library Compiler doesn't support this attribute and it's giving me the "unknown symbol" error.

If I look in my current B4A AdLibs directory. Within the Admob.xml file I find the line:
<dependsOn>GoogleAdMobAdsSdk</dependsOn>

There is also the file GoogleAdMobAdsSdk.jar in this directory.

I don't have the source code for this version of the Admob wrapper, but I'm assuming it has the attribute statement @DependsOn(values={"GoogleAdMobAdsSdk"}) within it. With the "value" being the name of the jar file to reference.

In the examples included with the SLC, Flurry has the statement @DependsOn – so I'm confident the SLC supports this. I don't have all the included jars for the Flurry example, but if I comment out the lines of source code which depend on an external library, it doesn't choke with the "unknown symbol" error at the @DependsOn statement and adds <dependsOn> ... to the output xml.

Barry.

 

[Erel]

I recommend you to write the Java code in Eclipse. Eclipse will help you with such errors.

You need to add this line:

import anywheresoftware.b4a.BA.DependsOn;

 

[canalrun]

Thanks. The import statement solved the problem.

I think you are right about using Eclipse. I was trying to sneak by with Notepad++. Eclipse has quite a few useful features for development.

I remember seeing a post that mentioned using SLC as a tool from within Eclipse. I will have to search for that.

 

[giga]

Using Notepad++ I missed that one.

Erel is 100% correct. Eclipse picks this up and other BA imports. Once you add B4AShared.jar to your external build path it would have imported it.
Is this what you are looking for regarding eclipse:

I only use Eclipse and SLC.

http://www.b4x.com/android/forum/th...uild-libraries-without-eclipse.29918/#content

 

[b4xscripter]

I think I have some problem understanding well the DependsOn statement....

In my case I pretend to compile this code to create my library. I need to import an external .jar file, as you can see in my code.

Can anyone tell me what should I put in the DependsOn?
Thank you a lot!!!!!

package anywheresoftware.b4a.MongoDBClient;

import anywheresoftware.b4a.BA.Permissions;
import anywheresoftware.b4a.BA.ShortName;
import anywheresoftware.b4a.BA.*;
import android.telephony.*; 


// MONGO

package app;

import com.mongodb.BasicDBObject;
import com.mongodb.BasicDBList;
import com.mongodb.BulkWriteOperation;
import com.mongodb.BulkWriteResult;
import com.mongodb.Cursor;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ParallelScanOptions;
import com.mongodb.ServerAddress;

// MONGO


import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.List;
import java.util.Set;



@Permissions(values={"android.permission.INTERNET"})
@ShortName("MongoDBClient")
@DependsOn(values={"some java library "})
@ActivityObject


public class MongoDBClient {
 
public MongoDBClient()        
{
    
}
    

public String find(String miCollection,String query) throws UnknownHostException{
                MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
                DB db = mongoClient.getDB( "santander" );
                DBCollection coll = db.getCollection(miCollection);

                Object o = com.mongodb.util.JSON.parse(query);
                DBCursor cursor = coll.find((DBObject) o);
                System.out.println(cursor);
                return cursor.toArray().toString();
                            
                            
}
  public static void main(String[] args) throws Exception {
     
   MongoDBClient mc = new MongoDBClient();
   System.out.println(mc.find("t_input_hh","{}"));  
  }
 
}

 

[b4xscripter]

well, I need to put only the .jar file...

@DependsOn(values={"mongo-java-driver-2.13.1"})

Best regards