Downloading And Uploading Data on Google App Engine Using Java Application

Reading Time: 3 minutes We need to download data as a CSV from the app engine data store. This would help us get the data back from the app engine, just in case you want to move away or update from the data store. We’ll go through a step by step example for using this tool with a Java application. 1. Download Google App Engine SDK for Python from here. Unzip this Continue Reading

Connect with LinkedIn in java

Reading Time: < 1 minute We needed to post LinkedIn updates in our gwt based application. LinkedIn-J is a java wrapper over LinkedIn API’s. We used this to post LinkedIn updates in our application. We have also used signpost-core. It stands for simple oauth messages signing for java. It exoposes a simple interface to sign HTTP requests using a given OAuth token and secret. For getting this work we downloaded Continue Reading

Filter Query Results With Objectify

Reading Time: < 1 minute Objectify is a Java data access API specifically designed for the Google App Engine datastore. It is an easy way to use Google Datastore. In this blog we are going to filter a single attribute for multiple values. Now lets start with creating an entity. The first step is to define your entity class. Here is an example of employee. public class Employee { @Id Continue Reading

Google Web Toolkit (GWT) : Your first step !

Reading Time: 3 minutes Google Web Toolkit (GWT) is a development toolkit for building and optimizing complex browser-based applications. It is an open-source, Java-based framework for creating Ajax web applications. It is created and used by Google. With GWT, you can develop and debug AJAX applications in the Java language using the Java development tools of your choice. When you deploy your application to production, the GWT compiler translates Continue Reading