diff --git a/src/com/rjconsultores/ventaboletos/dao/util/AidfGenerator.java b/src/com/rjconsultores/ventaboletos/dao/util/AidfGenerator.java
new file mode 100644
index 000000000..ff0d70cae
--- /dev/null
+++ b/src/com/rjconsultores/ventaboletos/dao/util/AidfGenerator.java
@@ -0,0 +1,68 @@
+package com.rjconsultores.ventaboletos.dao.util;
+
+import java.io.Serializable;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.apache.log4j.Logger;
+import org.hibernate.HibernateException;
+import org.hibernate.engine.SessionImplementor;
+import org.hibernate.id.IdentifierGenerator;
+/**
+ * Classe que trata a geração do ID da tabela Aidf.
+ * 
+ * Foi abandonado o uso da sequence pois existiam lacunas nos numeros e já havia atingido o tamanho máximo de 3 dígitos, com isso
+ * sendo necessário aproveitar os número que não haviam sido utilizados
+ * 
+ * @author gleimar
+ *
+ */
+public class AidfGenerator implements IdentifierGenerator {
+
+	private static Logger log = Logger.getLogger(AidfGenerator.class);
+	
+	@Override
+	public Serializable generate(SessionImplementor session, Object object) throws HibernateException {
+
+		int qtdMaxima = 999;
+		long idEncontrado = -1;
+		
+		Connection connection = session.connection();
+		PreparedStatement ps;
+		
+		int i=1;
+		
+		try {
+			
+			ps = connection.prepareStatement("select count(*) as qtd from aidf where aidf_id = :1");
+		
+			for(; (idEncontrado == -1) && (i <= qtdMaxima);i++){	
+				ps.setInt(1, i);
+				ResultSet rs = ps.executeQuery();
+				rs.next();
+				int qtd = rs.getInt("qtd");
+				
+				if (qtd == 0){
+					idEncontrado = i;
+				}
+			}
+			
+		} catch (SQLException e) {
+			log.error("erro ao buscar id aidf",e);
+			throw new HibernateException(e);
+		}
+		
+		
+		if (i == qtdMaxima){
+			throw new HibernateException("A qtd de IDs permitidos para AIDF foi atingido:"+qtdMaxima);
+		}
+		
+		if (idEncontrado == -1){
+			throw new HibernateException("Houve algum erro ao buscar um novo ID para AIDF");
+		}
+		return idEncontrado;
+	}
+
+}
diff --git a/src/com/rjconsultores/ventaboletos/entidad/Aidf.java b/src/com/rjconsultores/ventaboletos/entidad/Aidf.java
index d67c1b3bc..83d0b4d52 100644
--- a/src/com/rjconsultores/ventaboletos/entidad/Aidf.java
+++ b/src/com/rjconsultores/ventaboletos/entidad/Aidf.java
@@ -8,15 +8,15 @@ import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
 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;
 
+import org.hibernate.annotations.GenericGenerator;
+
 /**
  * Aidf generated by hbm2java
  */
@@ -24,6 +24,10 @@ import javax.persistence.TemporalType;
 @Table(name = "AIDF")
 public class Aidf implements java.io.Serializable {
 
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
 	private Long aidfId;
 	private AidfTipo aidfTipo;
 	private AidfEspecie aidfEspecie;
@@ -93,9 +97,10 @@ public class Aidf implements java.io.Serializable {
         return true;
     }
 	
-	@SequenceGenerator(name = "AIDF_SEQ", sequenceName = "AIDF_SEQ", allocationSize = 1)
+	
 	@Id
-	@GeneratedValue(strategy = GenerationType.AUTO, generator = "AIDF_SEQ")
+	@GenericGenerator(name="aidfgen_id", strategy="com.rjconsultores.ventaboletos.dao.util.AidfGenerator")
+	@GeneratedValue(generator="aidfgen_id")
 	@Column(name = "AIDF_ID", unique = true, nullable = false, precision = 15, scale = 0)
 	public Long getAidfId() {
 		return aidfId;