Engine.restart - Maple Programming Help

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Engine.restart

restart the kernel

 

Calling Sequence

Description

Examples

Calling Sequence

void restart() throws MapleException

Description

• 

The restart method causes the Maple session represented by the Engine object to clear its internal memory so that Maple acts (almost) as if just started.

• 

Any Algebraic objects will have their dispose method called.  These objects can no longer be used to reference the values they represented before restart was called.

• 

The restart method of Engine performs the same function as the restart function in Maple.

• 

In the event of an error, restart raises a MapleException.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

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

    {

        String[] mapleArgs = { "java" };

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

        Numeric n = engine.newNumeric( 1000 );

        List l = (List)engine.evaluate( "[1,2,3,4]:" );

        RTable r = (RTable)engine.evaluate( "Array( 1..10, 1..10 ):" );

        engine.evaluate( "a := 10;" );

        System.out.println( n.isDisposed() );

        System.out.println( l.isDisposed() );

        System.out.println( r.isDisposed() );

        engine.restart();

        engine.evaluate( "a;" );

        System.out.println( n.isDisposed() );

        System.out.println( l.isDisposed() );

        System.out.println( r.isDisposed() );

    }

}

Executing this code produces the following output.

a := 10

false

false

false

a

true

true

true

See Also

ExternalCalling/Java/MapleException

OpenMaple

OpenMaple/Java/API

OpenMaple/Java/Engine

restart