private static class MySQLDemoStoreFactory<K, V> extends CacheJdbcPojoStoreFactory<K, V> {
         //{@inheritDoc}
         @Override public CacheJdbcPojoStore<K, V> create() {


            MysqlDataSource dataSource = new MysqlDataSource();
            dataSource.setURL("jdbc:mysql://localhost/DB");
            dataSource.setUser("root");
            dataSource.setPassword("pass");
            setDataSource(dataSource);
            return super.create();

        }

    }

try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
            // Configure cache store.
            CacheConfiguration<EmployeeKey, Employee> cfg =
                CacheConfig.cache("EmpCache", new MySQLDemoStoreFactory<EmployeeKey, Employee>());

            try (IgniteCache<EmployeeKey, Employee> cache = ignite.getOrCreateCache(cfg)) {
                // Preload cache from database.
                preload(cache);