In addition to providing capabilities for text queries, Redis OM also provides you the ability to perform numeric equality and numeric range queries. Let us assume a model of:
[Document]
public class Employee
{
[Indexed]
public string Name { get; set; }
[Indexed(Aggregatable = true)]
public int Age { get; set; }
[Indexed(Aggregatable = true)]
public double Sales { get; set; }
[Searchable(Aggregatable = true)]
public string Department { get; set; }
}Assume that we've connected to Redis already and retrieved a RedisCollection and seeded some data as such:
var employees = provider.RedisCollection<Employee>();
var e1 = new Employee {Name = "Bob", Age = 35, Sales = 100000, Department = "EMEA Sales"};
var e2 = new Employee {Name = "Alice", Age = 52, Sales = 300000, Department = "Partner Sales"};
var e3 = new Employee {Name = "Marcus", Age = 42, Sales = 250000, Department = "NA Sales"};
var e4 = new Employee {Name = "Susan", Age = 27, Sales = 200000, Department = "EMEA Sales"};
var e5 = new Employee {Name = "John", Age = 38, Sales = 275000, Department = "APAC Sales"};
var e6 = new Employee {Name = "Theresa", Age = 30, Department = "EMEA Ops"};
employees.Insert(e1);
employees.Insert(e2);
employees.Insert(e3);
employees.Insert(e4);
employees.Insert(e5);
employees.Insert(e6);We can now perform queries against the numeric values in our data as you would with any other collection using LINQ expressions.
var underThirty = employees.Where(x=>x.Age < 30);
var middleTierSales = employees.Where(x=>x.Sales > 100000 && x.Sales < 300000);You can of course also pair numeric queries with Text Queries:
var emeaMidTier = employees.Where(x=>x.Sales>100000 & x.Sales <300000 && x.Department == "EMEA");If an Indexed field is marked as Sortable, or Aggregatable, you can order by that field using OrderBy predicates.
var employeesBySales = employees.OrderBy(x=>x.Sales);
var employeesBySalesDescending = employees.OrderByDescending(x=>x.Sales);