aswi2020vldc-gitlab/src/main/java/vldc/aswi/domain/EntityParent.java @ d411f143

package vldc.aswi.domain;

import javax.persistence.*;

import lombok.Data;

/**
 * Class which is extended for all domain entities containing common attributes.
 */
@MappedSuperclass
@Data
public class EntityParent {

    /** Specific identificator for every table. */
    @Id
    @Column(name="ID")
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id;

    /**
     * Equal method for comparing two objects.
     * @param obj - Comparing object.
     * @return true if objects are same.
     */
    @Override
    public boolean equals(Object obj) {
        if(this == obj) {
            return true;
        }

        if(obj == null || obj.getClass()!= this.getClass()) {
            return false;
        }

        // type casting of the argument.
        EntityParent parent = (EntityParent) obj;

        if (parent.getId() == null) {
            return false;
        }

        return (parent.getId() == this.getId());
    }
}