EDIT

package eu.etaxonomy.taxeditor.workbench;

import java.util.List;

import javax.inject.Inject;

import javax.inject.Named;

import org.eclipse.e4.core.di.annotations.Execute;

import org.eclipse.e4.ui.model.application.commands.MBindingTable;

import org.eclipse.e4.ui.model.application.commands.MKeyBinding;

public class WorkbenchProcessor {

    @Inject

    @Named("org.eclipse.ui.contexts.window")

    private MBindingTable bindingTable;

    @Inject

    @Named("eu.etaxonomy.taxeditor.workbench.keybinding.save")

    private MKeyBinding saveBinding;

    @Execute

    public void execute() {

        //swap legacy CTRL+S with the one defined in our model fragment

        //to allow using our SaveHandler for all save actions

        List<MKeyBinding> bindings = bindingTable.getBindings();

        MKeyBinding legacySaveBinding = null;

        for (MKeyBinding mKeyBinding : bindings) {

            String keySequence = mKeyBinding.getKeySequence();

            if(keySequence.equals("CTRL+S")){

                legacySaveBinding = mKeyBinding;

                break;

            }

        }

        if(legacySaveBinding!=null){

            bindings.remove(legacySaveBinding);

        }

        bindings.add(saveBinding);

    }

}