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 com.avbravo.myappweb.provider; /** * * @author avbravo */ import com.avbravo.avbravoutils.JsfUtil; import javax.annotation.PostConstruct; import javax.ejb.ConcurrencyManagement; import javax.ejb.ConcurrencyManagementType; import javax.ejb.Lock; import javax.ejb.LockType; import javax.ejb.Singleton; import com.mongodb.MongoClient; @Singleton @ConcurrencyManagement(ConcurrencyManagementType.CONTAINER) public class MongoClientProvider { private MongoClient mongoClient = null; @Lock(LockType.READ) public MongoClient getMongoClient() { return mongoClient; } @PostConstruct public void init() { try { /* String database=""; String username=""; String password=""; String host="localhost"; String port="27017"; char[] charArray = password.toCharArray(); MongoCredential credential = MongoCredential.createCredential(username, database, charArray); mongoClient = new MongoClient(new ServerAddress(host,port), Arrays.asList(credential)); */ mongoClient = new MongoClient(); } catch (Exception e) { JsfUtil.addErrorMessage("init() " + e.getLocalizedMessage()); } } }