jpukg

package com.javaxp;

import java.io.File;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.InboundChannelAdapter;
import org.springframework.integration.annotation.Poller;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.channel.DirectChannel;

Theartbug

Advanced topics

Functional Interfaces

• usecase for wildcards
• lambda expressions have types
• good for library building

// has ingoing type T and return type R
Function<T, R> -> R apply(T arg)

toraritte

Configure PostgreSQL to allow remote connections

NOTE: This post is a personal update to Neeraj Singh's post. [PostgreSQL must also be configured to allow remote connections][1], otherwise the connection request will fail, even if all firewalls rules are correct and PostgreSQL server is listening on the right port.

Steps

Outline

^{Couldn't create links, but this is a rather long answer so this may helps.}

disusered

## Batch Create Assertion Duplicate
curl -X "POST" "http://localhost:4000/api/batch/assertions" \
     -H 'Content-Type: application/json; charset=utf-8' \
     -H 'Cookie: jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJjYXJsb3NAYmFkZ2V0cmVlLmNvbSIsImlkIjoyfQ.yL0nNX_l3VtPjgZdVk7-1Q7TD4XF_IiVk2VgwhwoOqs; ueberauth_linkedin_state=INKFNIWeDa6TbzGP9aI/VA==' \
     -d $'{
  "data": [
    {
      "issuer_id": "4",
      "user_email": "diego@edvolution.io",
      "message": "Mensaje",

jpukg

// Simple Java program
public class Person {

    private int age;
    private boolean isFemale;

    Person(int age, boolean isFemale) {
        this.age = age;
        this.isFemale = isFemale;
    }

jpukg

import com.yammer.dropwizard.util.Duration;

import com.google.common.cache.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.*;

import static com.google.common.base.Throwables.propagateIfInstanceOf;

public class LocalAppConfigStorage implements AppConfigStorage {

jpukg

#!/bin/bash

## Script start time
START=$(date +%s)

## Total run time
DURRATION=$((60 * 60 * 24))

## Total running time
UPTIME=$(($(date +%s) - $START))

jpukg

#!/bin/sh

#
# a simple way to parse shell script arguments
# 
# please edit and use to your hearts content
# 


ENVIRONMENT="dev"

jpukg

	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
		<property name="dataSource" ref="myDS" />
	</bean>

	<tx:annotation-driven transaction-manager="transactionManager" />

	<aop:config>
		<aop:pointcut id="defaultServiceMethodTxPointcut"
			expression="execution(!@org.springframework.transaction.annotation.Transactional * *(..)) 

Grin941

ACID

How does a relational database work

A beginner’s guide to ACID and database transactions

A beginner’s guide to database locking and the lost update phenomena

A beginner’s guide to read and write skew phenomena