Jordi Henrique Silva jordisilvazup

Java Software Engineer focused on microservices development. Personal profile: https://github.com/jordihofc/

rponte / HowToUseIt.java

Last active December 30, 2023 14:37

THEORY: Example of a simple Single Thread Pool implementation in Java

	public class HowToUseIt {

	/**
	* Usually we'll have a single instance per client
	*/
	private static final SingleThreadPool THREAD_POOL = new SingleThreadPool();

	public void executeAsync() {
	try {

rponte / Intervalo.java

Last active January 17, 2023 14:24

Exemplo de tiny object para representar Intervalo de Datas (Date Range) em Java

	package br.com.triadworks.tinyobjects;

	import java.util.Date;

	public class Intervalo {

	private static int ONE_DAY_IN_MILLISECONDS = 24 * 60 * 60 * 1000;

	private Date inicio;
	private Date fim;

rponte / Sorteio.java

Last active January 19, 2023 19:34

Algoritimos: Encontrar menor lance (valor) único em uma lista

	import static java.util.Comparator.naturalOrder;
	import static java.util.function.Function.identity;
	import static java.util.stream.Collectors.counting;
	import static java.util.stream.Collectors.groupingBy;
	import java.util.stream.Collectors;
	import java.util.stream.Comparator;
	import java.util.*;

	public class Sorteio {

rponte / 01_criteria.java

Last active January 17, 2023 14:26

HQL vs Criteria example

	Criteria criteria = getSession().createCriteria(PagueLeve.class);

	criteria.createAlias("itens", "itens", Criteria.INNER_JOIN);
	criteria.add(Restrictions.ge("dataFinal", venda.getInicio())) // start1 <= end2
	.add(Restrictions.le("dataInicial", venda.getFim())) // start2 <= end1
	.add(Restrictions.in("itens.codigo", venda.getCodigosDosProdutosAssociados()));

	criteria.setProjection(Projections.distinct(
	Projections.projectionList()
	.add(Projections.property("codigo").as("codigo"))