End to End Technology Solutions
Stream concept is introduced in java 1.8 and present in java.util.stream package.It is used to process the object from collection or any group of objects or data source. We can easily understand java stream concept by it’s name stream, In stream water flows from one water source to destination and we can perform some operations Continue Reading »
1. Lets list things we need to discuss:- Set our goal clear. Understand value of feature for End-User. Keep a track of all the test scenarios and new findings. After testing check have we covered all the checkpoints. UI checkpoints. Last but not least, give app/web_app to another tester who is not a part for Continue Reading »
Hibernate mappings are one of the key features of Hibernate. They establish the relationship between two database tables as attributes in your model. That allows you to easily navigate the associations in your model and Criteria queries. You can establish either unidirectional or bidirectional i.e you can either model them as an attribute on only one Continue Reading »
In this blog, we are going to discuss about the Eventbus library. What is EventBus: EventBus Is open Source android library that simplifies communication between Activities, Fragments, Threads, Services, with Less code, better quality.When we develop an android application we need to manage a lot of intercommunication between android components which some time’s become very Continue Reading »
We have already discussed near pre-connection phase in our previous blog. Check this reference : https://innovationm.co/nearby-api-pre-connection-phase/ Now, in this blog, we will have a look at the post-connection phase. After the connection between advertiser and discoverer is made successfully, post-connection phase starts. In the post-connection phase, there is no distinction between advertiser and discoverer. Both can Continue Reading »
Ehcache is an open-source, standards-based cache for boosting performance, simplifying scalability and offloading your database. EhCache is used to improve performance by reducing the load on underlying resources. It can also be used for RESTful server caching, application persistence, and distributed caching. In simple words, cache means a store of things that will be required Continue Reading »
In this blog, we are going discuss about MVP Design Pattern for android which is a better and modified alternate of MVC. Note: I am trying to make this(MVP) concept as easy as possible because everyone might have different opinions for MVP. So, do not get confused because it is simply a design pattern to Continue Reading »
Retrofit is REST API Client for Java. It is developed by Square Inc. It uses OkHttp library for HTTP Request. It is a simple library that is used for network transaction. It is a very easy and fast library to retrieve and upload the data via Rest based web service. Adding Dependency in Build.gradle- dependencies Continue Reading »
Nearby Connections API is one of the many APIs available in google play services. This framework was introduced in early 2015. Initially, it allowed only those devices to share data which connected to the same wifi network. After June 2017, in the version 11.0, it also made use of Wifi hotspots, Bluetooth and BLE Continue Reading »
Last year 2017 Google announced a more secure and robust architecture to allow smooth database access while harnessing the full power of SQLite called Room Library. The Room Persistence library helps your app to create a cache on your device. In this blog, we are going to discuss Room Library and its implementation. Persistence in Android? Continue Reading »
In this tutorial will discuss about Hibernate Query Language. HQL is an object-oriented query language. Hibernate Query Language(HQL) is same as Structured Query language(SQL), except that in HQL we use entity class name instead of table name. HQL provides its own syntax and grammar Ex. From Employee emp . Where Employee is an entity class Continue Reading »
Spring Security provides comprehensive security services for J2EE – based enterprise software applications. It is powerful, flexible and pluggable. It is not Proxy server, firewall, OS level Security, Intrusion Detection System, and JVM Security. OAuth is open authorization protocol, which allows accessing resources of the resource owner by enabling the client applications on HTTP Continue Reading »
Welcome to the tutorial of Functional Interface and Lambda expression. In this tutorial we will discuss fundamental concept of functional interface and lambda expression. Functional Interface : Functional Interface is just a interface with one abstract method, but it can have any number of default and static method. Runnable and Comparable interface are the Continue Reading »
What is Spring Boot? What is Spring Framework? What are their goals? How can we compare them? There must be a lot of question in your mind. We will discuss each and every question here. At the end of blog you will get to know about all these questions. There is one interesting fact that Continue Reading »
In this blog, we are going to discuss first Intent in short and then create chooser and email sending process using intent. Intent An intent is an object that provides runtime binding between seprate components (such as two activity etc). It can be used as signal to the android operating system that certain event Continue Reading »
Amazon S3 (Simple Storage Service) is a storage service provided by AWS (Amazon Web Services). We can use S3 to store and retrieve any amount of data on the web world-wide. To know more about this service, you can refer to the official documentation of AWS S3 from here. This tutorial will show you, how Continue Reading »
In this blog, we are going to discuss about Fragment object states, Fragment transactions and Fragment BackStack behavior. Let’s first look at the different states of a fragment object. A fragment exists as : Java object When we write, Fragment f = new Fragment(); It exists as a simple java object but at this point Continue Reading »
In this tutorial, we will discuss about how to integrate mongoDB with java client. 1. What is MongoDB ? MongoDB is a very popular NoSql open source database. It works on collection rather than table and document rather than row and column that provides, high performance, high availability, and easy scalability. Sample document : { Continue Reading »
Routing concept is very importance in almost every web application’s architecture, which could not be left out in the React. Power of routing enables us to make a full fleshed single page applications with React. We can make use of React-Router for Routing in React. Setup and Installation We need: Node.js and npm. create a new project. React Router Continue Reading »
AOP framework is one of the key components of the Spring framework. AOP provides a facility to enable middleware services with the Spring application in a loosely coupled manner. Middleware services are the additional services that makes our application to be executed in a stable manner in all the situations. Middleware services can be Continue Reading »
Spring Data JPA is not a JPA provider but is a specification. It is a library / framework that adds an extra layer of abstraction on the top of our JPA provider. It simply “hides” the Java Persistence API (and the JPA provider) behind its repository abstraction. JPA is the sun specification for persisting Continue Reading »
JasperReports is an open source reporting engine. It provides ability to deliver rich content onto to the printer, the screen, or into various formats such as PDF, HTML, XLS, RTF, ODT, CSV, TXT and XML files. It is a Java library and can be used in a variety of Java-enabled applications to generate dynamic content. Continue Reading »
All the react component goes through a lifecycle which enables you to perform a specific task at any specific time. In order to achieve that you can override the life cycle methods. Methods prefixed with will are called right before something occurs (events), and methods prefixed with did are called right after something occurs. Let us understand Continue Reading »
Why we use Log4j ? Log4j is used for logging. Logging is the process of writing log message in any file, db,console etc( any central place). If we use SOP (System.out.print() ) statement to print the log message then we can have some disadvantage : 1. We can print log message on console only. So Continue Reading »
Apache commons CSV library is a java library that can be used to read and write CSV files in a very simple and easy way. Another advantage is that this java library is open source and freely available to use. Add the library to your project as : Maven dependency : You just need Continue Reading »
This blog is about database transaction handling and its design pattern in android. It also gives a brief knowledge on how to handle Exception. Here we have a main method which is responsible to get database instance -> start Database Transaction -> Mark Transaction Successful -> Commit or Rollback Transaction -> Close database. This main Continue Reading »
In this blog, we will learn how to consume web service in our react application.We are going to use axios as HTTP client for making HTTP Requests, so before dive in let’s understand little bit about axios, it’s features and how we can make http requests using axios. Axios Axios is a promise based HTTP Continue Reading »
Spring Batch Spring Batch is a processing framework designed for robust and parallel execution of multiple job. It follows the standard batch architecture in which a job repository takes care of scheduling and interacting with the job. Spring Batch Job Spring batch job reads input data, processes the input data, and writes the processed data Continue Reading »
Apache Subversion (SVN) SVN stands for Apache Subversion, a software versioning and revision control system distributed as open source under the Apache License. In order to demonstrate the process of adding an Android Studio project into SVN, let’s first create a new project in Android Studio and name it HelloWorldProject. The project structure looks like this Continue Reading »
Reducing Size of Bitmap Introduction- Images come in all shapes and sizes. In many cases they are larger than required size for a typical application user interface. For example, the system Gallery application displays photos taken using your Android devices’s camera which are typically much higher resolution than the screen density of your device. So Continue Reading »