Filter Child Collections using Criteria API or JPQl.
package com.jpa; import java.io.Serializable; import java.util.List; import javax.persistence.CascadeType; import javax.persistence.Entity; import javax.persistence.FetchType; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.OneToMany; @Entity class Department implements Serializable { private static final long serialVersionUID = 5311019741003844465L; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private int id; private String name; @OneToMany(mappedBy = "department", cascade = CascadeType.ALL, fetch = FetchType.EAGER) List employee; public List getEmployee() { return employee; } public void setEmployee(List employee) { this.employee = employee; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String deptName) { ...