Java Archive

Spring Boot Using Hikari Connection Pool

# Spring Boot Using Hikari Connection Pool Connection Pool In software engineering, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required. Connection pools are used to enhance the performance of executing commands on a database. Opening and maintaining a […]

Dynamic Call Store Procedure and Function Database

spring-boot-call-store-procedure Dynamic calling store procedure and store function in database Dynamic calling store procedure and function 1. Via Callable Statement 2. Via SimpleJdbcCall spring-boot-starter-jdbc See Code Snippets Store Procedure DELIMITER $$ USE `training_sp`$$ DROP PROCEDURE IF EXISTS `create_product`$$ CREATE DEFINER=`root`@`localhost` PROCEDURE `create_product`(id VARCHAR(255), p_code VARCHAR(255),p_name VARCHAR(255),weight BIGINT) BEGIN INSERT INTO product(id, CODE,NAME,weight) VALUES(id,p_code,p_name,weight); END$$ DELIMITER […]

Implementation Dynamic Specification Using RSQL-Parser Example

Introducing Changes Is Enemy, But We Must Prepared . – I have been code with spring boot and thymeleaf, When the *User Interface * add a new search criteria the backend code (my repository, service and controller) must changed too. Honestly I don’t like that. to much changing :(. I try searching library to handle […]

Simple Implementations Tesseract OCR on Android

Tesseract is an optical character recognition engine for various operating systems. It is free software, released under the Apache License, Version 2.0, and development has been sponsored by Google since 2006. Tesseract is considered one of the most accurate open source OCR engines currently available Wikipedia Image processing is widely used in helping to resolve […]

Small Case But Solve BolierPlate Of My Code StringUtils Apache Common Lang.

StringUtils is Operations on String that are null safe. Snipset code below was a my code history. //when i was in collage String result=”putracode”: if(data ==null && data.length>0 ){ result=data; } //First Time in Job String result= (data ==null && data.length>0 ? data ; “putracode”); //And Now String result=StringUtils.defaultIfBlank(data,”putracode”); Look More Simple.. 😀 StringUtils Helpme […]

FastDateFormat is Fast by Apache Commons Lang Example

FastDateFormat is a fast and thread-safe version of SimpleDateFormat.To obtain an instance of FastDateFormat, use one of the static factory methods: getInstance(String, TimeZone, Locale), getDateInstance(int, TimeZone, Locale),getTimeInstance(int, TimeZone, Locale), or getDateTimeInstance(int, int, TimeZone, Locale) Since FastDateFormat is thread safe, you can use a static member instance: private static final FastDateFormat DATE_FORMATTER = FastDateFormat.getDateTimeInstance(FastDateFormat.LONG, FastDateFormat.SHORT); This […]

Simple way to get a random String or Numeric Using RandomUtils and RandomStringUtils

Take a look for RandomStringUtils and RandomUtils. Apache Common-langs make a simple way to do it. RandomUtils is a Utility library that supplement the sandart Random class. RandomStringUtils is an operations for random Strings. Currently private high surrogate characters are ignored. These are Unicode characters that fall between the values 56192 (db80) and 56319 (dbff) […]

Simple way to get Java System Properties Using Apache Commons Lang3

SystemUtils help us to know java system properties. We Don’t need get manually. let check this snipset code And here are the results of our code snippet above: Visit My Repository for full code

How do I Calculate java.util.date using Apache Common Lang3

Do you have a little bored using Java Util Date? Say it to do little operation using java Util Date. example parsing String to Date, add days , add month, round Date, truncate date ceiling date and more operation. Using standart java code we will add some code to these operation. Now I Have a […]

How To use Strings Google Guava

Strings is a part of google Guava librarys. Strings is Static utility methods pertaining to String or CharSequence instances. Strings helps us to : Check Null Value Pad String Repeat String Check Prefix or Sufix Let See The example code below : And here are the results of our code snippet above: Visit My Repository […]