src/main/java/ognl/Ognl.java
public static void setValue(ExpressionAccessor expression, OgnlContext context,
                                Object root, Object value)
    {
        expression.set(context, root, value);
    }
public static void setValue(ExpressionAccessor expression, OgnlContext context,
                                Object root, Object value)
    {
        expression.set(context, root, value);
    }
Sets the value given using the pre-compiled expression on the specified root
object.

@param expression
The pre-compiled expression, as found in {@link Node#getAccessor()}.
@param context
The ognl context.
@param root
The object to set the expression value on.
@param value
The value to set.