Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package bd; import static bd.gg.MSG_ACEPTADO; import clases.CPersona; import com.mongodb.BasicDBObject; import com.mongodb.DBCursor; import java.util.ArrayList; import java.util.HashMap; import org.bson.types.ObjectId; /** * * @author WARREN */ public class DPersona implements Operaciones { private String table = "persona"; String verificar(CPersona x) { // if(x.getPersona()==null)return "No existe Persona"; return MSG_ACEPTADO; } @Override public String insertar(Object o) { CPersona x = (CPersona) o; String ver = verificar(x); if (ver.compareTo(MSG_ACEPTADO) != 0) return ver; conecion con = new conecion(table); BasicDBObject datos = new BasicDBObject(x.get_datos()); con.get_colletion().insert(datos); con.end(); return datos.getString("_id"); } @Override public String eliminar(Object o) { CPersona x = (CPersona) o; conecion con = new conecion(table); BasicDBObject datos = new BasicDBObject("_id", x.getId()); con.get_colletion().remove(datos); con.end(); return datos.getString("_id"); } @Override public String modificar(Object o) { CPersona x = (CPersona) o; String ver = verificar(x); if (ver.compareTo(MSG_ACEPTADO) != 0) return ver; conecion con = new conecion(table); BasicDBObject datos = new BasicDBObject(x.get_datos()); con.get_colletion().update(new BasicDBObject("_id", x.getId()), datos); con.end(); return x.getId().toString(); } @Override public ArrayList listar() { ArrayList datos = new ArrayList(); CPersona x = new CPersona(); conecion con = new conecion(table); DBCursor cursor = con.get_colletion().find(); try { while (cursor.hasNext()) { x = new CPersona(); BasicDBObject agg = (BasicDBObject) cursor.next(); x.set_datos((HashMap) agg.toMap()); x.setId((String) agg.getString("_id")); datos.add(x); } } finally { cursor.close(); } con.end(); return datos; } @Override public Object buscar_id(String id_find) { ArrayList datos = new ArrayList(); CPersona x = new CPersona(); conecion con = new conecion(table); BasicDBObject id = new BasicDBObject("_id", new ObjectId(id_find)); DBCursor cursor = con.get_colletion().find(id); try { while (cursor.hasNext()) { x = new CPersona(); x.set_datos((HashMap) cursor.next().toMap()); datos.add(x); } } finally { cursor.close(); } con.end(); if (datos.size() == 0) return null; return datos.get(0); } @Override public ArrayList listar(String clave, String valor) { ArrayList datos = new ArrayList(); CPersona x = new CPersona(); conecion con = new conecion(table); BasicDBObject id = new BasicDBObject(clave, valor); DBCursor cursor = con.get_colletion().find(id); try { while (cursor.hasNext()) { x = new CPersona(); x.set_datos((HashMap) cursor.next().toMap()); datos.add(x); } } finally { cursor.close(); } con.end(); return datos; } @Override public ArrayList listar(HashMap map) { ArrayList datos = new ArrayList(); CPersona x = new CPersona(); conecion con = new conecion(table); BasicDBObject id = new BasicDBObject(map); DBCursor cursor = con.get_colletion().find(id); try { while (cursor.hasNext()) { x = new CPersona(); x.set_datos((HashMap) cursor.next().toMap()); datos.add(x); } } finally { cursor.close(); } con.end(); return datos; } }