jhipster-question-bank/src/main/java/com/example/questionbank/domain/Question.java

package com.example.questionbank.domain;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import jakarta.persistence.*;
import jakarta.validation.constraints.*;
import java.io.Serial;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

/**
 * A Question.
 */
@Entity
@Table(name = "question")
@SuppressWarnings("common-java:DuplicatedBlocks")
public class Question implements Serializable {

    @Serial
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")
    @Column(name = "id")
    private Long id;

    @NotNull
    @Size(min = 5, max = 2000)
    @Column(name = "prompt", length = 2000, nullable = false)
    private String prompt;

    @Size(max = 2000)
    @Column(name = "explanation", length = 2000)
    private String explanation;

    @NotNull
    @Column(name = "active", nullable = false)
    private Boolean active;

    @OneToMany(fetch = FetchType.LAZY, mappedBy = "question")
    @JsonIgnoreProperties(value = { "question" }, allowSetters = true)
    private Set<Choice> choices = new HashSet<>();

    @ManyToOne(optional = false)
    @NotNull
    private Subject subject;

    // jhipster-needle-entity-add-field - JHipster will add fields here

    public Long getId() {
        return this.id;
    }

    public Question id(Long id) {
        this.setId(id);
        return this;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getPrompt() {
        return this.prompt;
    }

    public Question prompt(String prompt) {
        this.setPrompt(prompt);
        return this;
    }

    public void setPrompt(String prompt) {
        this.prompt = prompt;
    }

    public String getExplanation() {
        return this.explanation;
    }

    public Question explanation(String explanation) {
        this.setExplanation(explanation);
        return this;
    }

    public void setExplanation(String explanation) {
        this.explanation = explanation;
    }

    public Boolean getActive() {
        return this.active;
    }

    public Question active(Boolean active) {
        this.setActive(active);
        return this;
    }

    public void setActive(Boolean active) {
        this.active = active;
    }

    public Set<Choice> getChoices() {
        return this.choices;
    }

    public void setChoices(Set<Choice> choices) {
        if (this.choices != null) {
            this.choices.forEach(i -> i.setQuestion(null));
        }
        if (choices != null) {
            choices.forEach(i -> i.setQuestion(this));
        }
        this.choices = choices;
    }

    public Question choices(Set<Choice> choices) {
        this.setChoices(choices);
        return this;
    }

    public Question addChoice(Choice choice) {
        this.choices.add(choice);
        choice.setQuestion(this);
        return this;
    }

    public Question removeChoice(Choice choice) {
        this.choices.remove(choice);
        choice.setQuestion(null);
        return this;
    }

    public Subject getSubject() {
        return this.subject;
    }

    public void setSubject(Subject subject) {
        this.subject = subject;
    }

    public Question subject(Subject subject) {
        this.setSubject(subject);
        return this;
    }

    // jhipster-needle-entity-add-getters-setters - JHipster will add getters and setters here

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof Question)) {
            return false;
        }
        return getId() != null && getId().equals(((Question) o).getId());
    }

    @Override
    public int hashCode() {
        // see https://vladmihalcea.com/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
        return getClass().hashCode();
    }

    // prettier-ignore
    @Override
    public String toString() {
        return "Question{" +
            "id=" + getId() +
            ", prompt='" + getPrompt() + "'" +
            ", explanation='" + getExplanation() + "'" +
            ", active='" + getActive() + "'" +
            "}";
    }
}