adhipg

CREATE TABLE IF NOT EXISTS `country` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `iso` char(2) NOT NULL,
  `name` varchar(80) NOT NULL,
  `nicename` varchar(80) NOT NULL,
  `iso3` char(3) DEFAULT NULL,
  `numcode` smallint(6) DEFAULT NULL,
  `phonecode` int(5) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1;

eugenp

package org.baeldung.web.hateoas;

import javax.servlet.http.HttpServletResponse;

import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.springframework.web.util.UriComponentsBuilder;

import com.google.common.base.Preconditions;

johntdyer

// PUT YOUR AWS ACCOUNT NUMBER HERE
var AWS_ACCOUNT_ID= '12345';

// PUT YOUR SQS QUEUE NAME HERE
var AWS_SQS_QUEUE_NAME='catch-dlr-dyer-testing';

var QUEUE_URL = 'https://sqs.us-east-1.amazonaws.com/' + AWS_ACCOUNT_ID + '/' + AWS_SQS_QUEUE_NAME;
var AWS = require('aws-sdk');
var sqs = new AWS.SQS({region : 'us-east-1'});

luizrobertofreitas

@SpringBootApplication
public class Application {
 
  @PostConstruct
  void started() {
    TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
  }
 
  public static void main(String[] args) {
    SpringApplication.run(Application.class, args);

Allan-Gong

// Ways to transform List<Optional<T>> to List<T> (excluding empty ones)

// 1. Using filter()
List<String> filteredList = listOfOptionals.stream()
  .filter(Optional::isPresent)
  .map(Optional::get)
  .collect(Collectors.toList());

// 2. Using flatMap()
List<String> filteredList = listOfOptionals.stream()

Toparvion

Problem

Suppose you have two classes that should be registered with Spring context exclusively, e.g. only one of the beans must exist in the context at any time based on some boolean property value. Of course you can do it by adding explicit if condition into your @Configuration class. But if the classes have no common interface it may be quite cumbersome. As an alternative you can use @ConditionalOnProperty annotation on your classes, e.g.:

@Service
@ConditionalOnProperty(name = "use-left-service", havingValue = "true", matchIfMissing = false)
public class LeftService

dblevins

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Date;

/**
 * This pattern has the following benefits:
 *
 *  - Date formats are referenced as a strong type
 *  - Code completion on patterns