SOA Service Client : Global Alternate

How to add/remove Global Alternate using SOA Service?
Before answering please understand please visit What is Global Alternate?

//Consider modObj1 ->part to which global alternate is to be added
//Consider modObj2 -> Alternate part
//Alternate part can  be multiple
How to Add Global Alternate

private static void addRelatedGlobalAlternates(ModelObject modObj1, ModelObject modObj2)
{

 Item primaryPart = (Item) modObj1;
 Item[] alternatePartArr = new Item[1];
 alternatePartArr[0] = (Item) modObj2;

     // Call the Service to add alternate

 GlobalAlternateListInput globalAlternateListInput = new GlobalAlternateListInput();

 globalAlternateListInput.gAltItems = alternatePartArr;
 globalAlternateListInput.item = primaryPart;

        GlobalAlternateListInput[] globalAlternateListInputArr = new GlobalAlternateListInput[1];
 globalAlternateListInputArr[0] = globalAlternateListInput;

 // GlobalAlternateService is from package com.teamcenter.services.internal.strong.structuremanagement
 GlobalAlternateService globalAlternateService = GlobalAlternateService.getService(connection);
 GlobalAlternateResponse globalAlternateresponse = globalAlternateService.addRelatedGlobalAlternates(globalAlternateListInputArr);
}

How to Remove Global Alternate

private static void removeRelatedGlobalAlternates(ModelObject modObj1, ModelObject modObj2)

    {

        Item primaryPart = (Item) modObj1;
        Item[] alternatePartArr = new Item[1];
        alternatePartArr[0] = (Item) modObj2;

       // Call the Service to delete alternate
        GlobalAlternateListInput globalAlternateListInput = new GlobalAlternateListInput();
        globalAlternateListInput.gAltItems = alternatePartArr;
        globalAlternateListInput.item = primaryPart;

        GlobalAlternateListInput[] globalAlternateListInputArr = new GlobalAlternateListInput[1];
        globalAlternateListInputArr[0] = globalAlternateListInput;

        GlobalAlternateService globalAlternateService = GlobalAlternateService.getService(connection);
        GlobalAlternateResponse globalAlternateresponse = globalAlternateService.removeRelatedGlobalAlternates(globalAlternateListInputArr);
    }