Is there any way to apply price adder with Agile SDK?

Trying below code but getting error: Cell [PriceDetails.Material Price Adder 1] is read only.

Same user can apply price adder in web client

Map responsePriceMap = new HashMap();

responsePriceMap.put(ProjectConstants.ATT_PRICEDETAILS_MATERIAL_PRICE_ADDER_1, new Money(new Double(10), "USD"));

IProject project = (IProject) session.getObject(IProject.OBJECT_TYPE, "PRJ00009");

  ITable analysisTable = project.getTable(ProjectConstants.TABLE_ANALYSIS);

  Iterator analysisItr = analysisTable.iterator();

  while(analysisItr.hasNext())

  {

  IRow analysisRow = (IRow) analysisItr.next();

  ITable pricing_table =

  (ITable)analysisRow.getValue(ProjectConstants.ATT_ANALYSIS_PRICING);

  Iterator pricingItr = pricing_table.iterator();

  while(pricingItr.hasNext())

  {

  IRow pricingRow = (IRow) pricingItr.next();

  pricingRow.setValues(responsePriceMap);

  }

  }