Tweet.java

package model;

import java.util.Calendar;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

@Entity
@Table(name = "tweet")
public class Tweet {

	@Id
	@SequenceGenerator(name = "seq_tweet", sequenceName = "seq_tweet", initialValue = 1, allocationSize = 1)
	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq_tweet")
	@Column(name = "id")
	private int id;

	@Column(name = "conteudo")
	private String conteudo;

	@Column(name = "data_postagem")
	@Temporal(TemporalType.TIMESTAMP)
	private Calendar data;

	@ManyToOne
	@JoinColumn(name = "id_usuario", referencedColumnName = "id")
	private Usuario usuario;

	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getConteudo() {
		return conteudo;
	}
	public void setConteudo(String conteudo) {
		this.conteudo = conteudo;
	}
	public Calendar getData() {
		return data;
	}
	public void setData(Calendar data) {
		this.data = data;
	}
	public Usuario getUsuario() {
		return usuario;
	}
	public void setUsuario(Usuario usuario) {
		this.usuario = usuario;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((conteudo == null) ? 0 : conteudo.hashCode());
		result = prime * result + ((data == null) ? 0 : data.hashCode());
		result = prime * result + id;
		result = prime * result + ((usuario == null) ? 0 : usuario.hashCode());
		return result;
	}
	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Tweet other = (Tweet) obj;
		if (conteudo == null) {
			if (other.conteudo != null)
				return false;
		} else if (!conteudo.equals(other.conteudo))
			return false;
		if (data == null) {
			if (other.data != null)
				return false;
		} else if (!data.equals(other.data))
			return false;
		if (id != other.id)
			return false;
		if (usuario == null) {
			if (other.usuario != null)
				return false;
		} else if (!usuario.equals(other.usuario))
			return false;
		return true;
	}

}