Technology blogs for Developers by Developer.

How to get Data in sorted form in spring mongodb Create Query Object and pass your Query Criteria into Query Query query=new Query (criteria); Then Query.sort().on(“sortOnTheBasicOf”, Order . ASCENDING ); Order. ASCENDING for get result in asending order and Order . DESCENDING to get result in Desending order.. sortOnTheBasicOf à Pass the entity name by which you want to sort Pass this query to Your Mangotemplate and Your Class from which You want to get Result  mongoTemplate.find(query, YourEntityClassName.class); Then You Got Desired Out put Cheers !!!!!!!!!!!!!!!!!

Suppose  I have order table and I want to find out best five selling product. Create a method that returns best product of ValueObject Type . ValueObject Type basically contain id and corresponding values to those ids as shown below: public class ValueObject implements Comparable<ValueObject>{ private Object id; private int value; public Object getId() { return id; } public void setId(Object id) { this.id = id; } public int getValue() { return value; } public void setValue(int value) { this.value = value; } @Override public String toString() { return "ValueObject [id=" + id + ", value=" + value + "]"; } @Override public int compareTo(ValueObject o) { if(o instanceof ValueObject){ return o.getValue()-this.getValue(); } else{ throw new ClassCastException(); } } } Now, you can call mapReduce method on MongoTemplate which retur