Syntax to get List of domain Object

list can be used on the Criteria object as shown below.
criteria.list()

How to get a List of a Domain class using Hibernate's Criteria Query.

If we have a domain class Category as shown below.

Catgeory.class
package com.ekiras.domain;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;

@Entity
@Table(name="category")
public class Category {

public Category(){}
public Category(Long id){
this.id = id;
}
public Category(Long id, String name){
this.id = id;
this.name = name;
}

@Id
@Column(nullable=false, name="id")
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;

@Column(nullable=false, name="name")
private String name;

// Getters and Setters

}

We can get the list of all the categories using Criteria Query in the following ways

  • Simplest way to get a list of a Domain class (Category) in our example is
    sessionFactory.getCurrentSession().createCriteria(Category.class).list();
  • You can use pagination in the following way with list()
    @SuppressWarnings("unchecked")
    public List<Category>; list(Integer offset){
    return sessionFactory.getCurrentSession()
    .createCriteria(Category.class)
    .setFirstResult(offset!=null?offset:0)
    .setMaxResults(10)
    .list();
    }
  • Use this method as a generic method to get a list of all the records of a domain in the database.
    @SuppressWarnings("rawtypes")
    public List list(Class clazz){
    return (List)getSession().createCriteria(clazz).list();
    }
  • You can Order your list according to any property like
    public List<Category> list(Integer offset){
    return getSession()
    .createCriteria(Category.class)
    .addOrder(Order.desc("id"))
    .list();
    }