ExemploEntity

import java.util.Objects;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "UNIDADE_FEDERATIVA")
public class UnidadeFederativa{

    @Id
    @Column(name = "ID_UF")
    private Long idUf;

    @Column(name = "DS_UF")
    private String dsUf;

    public Long getId() {
        return idUf;
    }

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

    public String getDsUf() {
        return dsUf;
    }

    public void setDsUf(String dsUf) {
        this.dsUf = dsUf;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        UnidadeFederativa that = (UnidadeFederativa) o;
        return Objects.equals(idUf, that.idUf) &&
                Objects.equals(dsUf, that.dsUf);
    }

    @Override
    public int hashCode() {
        return Objects.hash(idUf, dsUf);
    }
}