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Thread: Connecting netbeans with sql database

  1. #1
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    Default Connecting netbeans with sql database

    I've connected my database to netbeans and it automatically generated some code for me. This is one of the files of code it created.
    /*
     * To change this template, choose Tools | Templates
     * and open the template in the editor.
     */
    package stud_info;
     
    import java.io.Serializable;
    import java.util.Collection;
    import javax.persistence.Basic;
    import javax.persistence.CascadeType;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.NamedQueries;
    import javax.persistence.NamedQuery;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;
    import javax.xml.bind.annotation.XmlRootElement;
    import javax.xml.bind.annotation.XmlTransient;
     
    /**
     *
     * @author vianna
     */
    @Entity
    @Table(name = "student")
    @XmlRootElement
    @NamedQueries({
        @NamedQuery(name = "Student.findAll", query = "SELECT s FROM Student s"),
        @NamedQuery(name = "Student.findByStudId", query = "SELECT s FROM Student s WHERE s.studId = :studId"),
        @NamedQuery(name = "Student.findByLastName", query = "SELECT s FROM Student s WHERE s.lastName = :lastName"),
        @NamedQuery(name = "Student.findByFirstName", query = "SELECT s FROM Student s WHERE s.firstName = :firstName"),
        @NamedQuery(name = "Student.findByGender", query = "SELECT s FROM Student s WHERE s.gender = :gender")})
    public class Student implements Serializable {
        private static final long serialVersionUID = 1L;
        @Id
        @Basic(optional = false)
        @Column(name = "Stud_Id")
        private Integer studId;
        @Basic(optional = false)
        @Column(name = "LastName")
        private String lastName;
        @Basic(optional = false)
        @Column(name = "FirstName")
        private String firstName;
        @Basic(optional = false)
        @Column(name = "Gender")
        private String gender;
        @OneToMany(cascade = CascadeType.ALL, mappedBy = "studId")
        private Collection<Address> addressCollection;
        @OneToMany(cascade = CascadeType.ALL, mappedBy = "studId")
        private Collection<AcademicDetails> academicDetailsCollection;
     
        public Student() {
        }
     
        public Student(Integer studId) {
            this.studId = studId;
        }
     
        public Student(Integer studId, String lastName, String firstName, String gender) {
            this.studId = studId;
            this.lastName = lastName;
            this.firstName = firstName;
            this.gender = gender;
        }
     
        public Integer getStudId() {
            return studId;
        }
     
        public void setStudId(Integer studId) {
            this.studId = studId;
        }
     
        public String getLastName() {
            return lastName;
        }
     
        public void setLastName(String lastName) {
            this.lastName = lastName;
        }
     
        public String getFirstName() {
            return firstName;
        }
     
        public void setFirstName(String firstName) {
            this.firstName = firstName;
        }
     
        public String getGender() {
            return gender;
        }
     
        public void setGender(String gender) {
            this.gender = gender;
        }
     
        @XmlTransient
        public Collection<Address> getAddressCollection() {
            return addressCollection;
        }
     
        public void setAddressCollection(Collection<Address> addressCollection) {
            this.addressCollection = addressCollection;
        }
     
        @XmlTransient
        public Collection<AcademicDetails> getAcademicDetailsCollection() {
            return academicDetailsCollection;
        }
     
        public void setAcademicDetailsCollection(Collection<AcademicDetails> academicDetailsCollection) {
            this.academicDetailsCollection = academicDetailsCollection;
        }
     
        @Override
        public int hashCode() {
            int hash = 0;
            hash += (studId != null ? studId.hashCode() : 0);
            return hash;
        }
     
        @Override
        public boolean equals(Object object) {
            // TODO: Warning - this method won't work in the case the id fields are not set
            if (!(object instanceof Student)) {
                return false;
            }
            Student other = (Student) object;
            if ((this.studId == null && other.studId != null) || (this.studId != null && !this.studId.equals(other.studId))) {
                return false;
            }
            return true;
        }
     
        @Override
        public String toString() {
            return "stud_info.Student[ studId=" + studId + " ]";
        }
     
    }

    I want to use the database information to make array objects but I dont know where to go from there so that i can assign variables or even get the results of some of the functions in the automated code. Can someone please explain how I go about doing this please?


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Connecting netbeans with sql database

    Also posted at Connecting netbeans with sql database - Dev Shed
    If you don't understand my answer, don't ignore it, ask a question.

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