code: @Pure
  	public IExpressionBuilder getInitialValue() {
  		IExpressionBuilder exprBuilder = this.expressionProvider.get();
  		exprBuilder.eInit(getSarlField(), new Procedures.Procedure1<XExpression>() {
  				public void apply(XExpression expr) {
  					getSarlField().setInitialValue(expr);
  				}
  			}, getTypeResolutionContext());
  		return exprBuilder;
  	}
docs: Change the initialValue.
  @param value the value of the initialValue. It may be <code>null</code>.