default implementation of readlineCallBack - Maple Help

Online Help

All Products    Maple    MapleSim

Home : Support : Online Help : Programming : OpenMaple : Java Application Programming Interface : EngineCallBacksDefault Class : OpenMaple/Java/EngineCallBacksDefault/readlineCallBack

EngineCallBacksDefault.readlineCallBack - default implementation of readlineCallBack

Calling Sequence

String readlineCallBack( Object data, boolean debug ) throws MapleException




arbitrary data that was passed to the Engine constructor



true if readline was called from the debugger



readlineCallBack is a member function of the com.maplesoft.openmaple.EngineCallBacksDefault class.  This class implements the EngineCallBacks interface.


This default implementation raises a MapleException stating that readlineCallBack is not implemented.


import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example


    public static void main( String notused[] ) throws MapleException


    String mapleArgs[];

    Engine engine;

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

    engine = new Engine( mapleArgs, new EngineCallBacksDefault(),

        null, null );



        engine.evaluate( "readline();" );


    catch ( MapleException me )


        System.out.println( me.getMessage() );




Executing this code produces the following output.

Error, (in readline) readline was not implemented by the application

See Also

ExternalCalling/Java/MapleException, OpenMaple, OpenMaple/Java/Engine, OpenMaple/Java/Engine/Engine, OpenMaple/Java/EngineCallBacks, OpenMaple/Java/EngineCallBacks/readlineCallBack, OpenMaple/Java/EngineCallBacksDefault, readline

Download Help Document

Was this information helpful?

Please add your Comment (Optional)
E-mail Address (Optional)
What is ? This question helps us to combat spam