Hibernate example source code file (Child1Entity.java)

This example Hibernate source code file (Child1Entity.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

arraylist, audited, child1entity, child1entity, generatedvalue, id, integer, integer, joincolumn, joincolumn, list, override, string, string, util

The Hibernate Child1Entity.java source code

package org.hibernate.envers.test.entities.manytomany.sametable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import org.hibernate.annotations.WhereJoinTable;
import org.hibernate.envers.Audited;

/**
 * @author Adam Warski (adam at warski dot org)
 */
@Entity
@Audited
public class Child1Entity {
    @Id
    @GeneratedValue
    private Integer id;

    private String child1Data;

    public Child1Entity() {
    }

    public Child1Entity(String child1Data) {
        this.child1Data = child1Data;
    }

    public Child1Entity(String child1Data, Integer id) {
        this.child1Data = child1Data;
        this.id = id;
    }

    @ManyToMany(fetch = FetchType.LAZY)
	@JoinTable(
		name = "children",
		joinColumns = @JoinColumn(name = "child1_id"),
		inverseJoinColumns = @JoinColumn(name = "parent_id", insertable = false, updatable = false)
	)
	@WhereJoinTable(clause = "child1_id is not null")
	private List<ParentEntity> parents = new ArrayList();

    public Integer getId() {
        return id;
    }

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

    public String getChild1Data() {
        return child1Data;
    }

    public void setChild1Data(String child1Data) {
        this.child1Data = child1Data;
    }

    public List<ParentEntity> getParents() {
        return parents;
    }

    public void setParents(List<ParentEntity> parents) {
        this.parents = parents;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Child1Entity that = (Child1Entity) o;

        if (child1Data != null ? !child1Data.equals(that.child1Data) : that.child1Data != null) return false;
        //noinspection RedundantIfStatement
        if (id != null ? !id.equals(that.id) : that.id != null) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = id != null ? id.hashCode() : 0;
        result = 31 * result + (child1Data != null ? child1Data.hashCode() : 0);
        return result;
    }

    public String toString() {
        return "C1E(id = " + id + ", child1Data = " + child1Data + ")";
    }
}