diff --git a/src/com/rjconsultores/ventaboletos/entidad/TipoEventoExtra.java b/src/com/rjconsultores/ventaboletos/entidad/TipoEventoExtra.java
index 17950652b..cce2496a2 100644
--- a/src/com/rjconsultores/ventaboletos/entidad/TipoEventoExtra.java
+++ b/src/com/rjconsultores/ventaboletos/entidad/TipoEventoExtra.java
@@ -30,6 +30,14 @@ import javax.persistence.TemporalType;
 @SequenceGenerator(name = "TIPO_EVENTO_EXTRA_SEQ", sequenceName = "TIPO_EVENTO_EXTRA_SEQ", allocationSize = 1)
 public class TipoEventoExtra implements Serializable {
 
+	public static short OPERACION_NORMAL = 1;
+	public static short OPERACION_AJUSTE = 2;
+	public static short OPERACION_CAMBIO_CHEQUE = 3;
+	
+	
+	public static String TIPO_CREDITO = "1";
+	public static String TIPO_DEBITO = "0";
+	
 	private static final long serialVersionUID = 1L;
 	@Id
 	@Basic(optional = false)