![]() Our Groovy Script will continuously monitor the same directory in the file system at regular intervals for the new files. We will parse (read and process) the line entries from the file and add an Order for each line into the Database to store it permanently.įor the sake of our example, imagine a system that dumps such a flat file in our file system at regular intervals. We will see an example of an Order Processing System where we will get the details related to an order in a flat file (a pipe separated / delimited) file where each line contains the information pertaining to an order. If you are an experienced Java professional for more than 5 years and have explored Groovy for sometime, you would undoubtedly agree with the above statement. ![]() Groovy is a programming language which can be used as a Scripting language due to its very simplified syntax which is very easy to use. In general, the scripting languages have one thing in common – their simplified syntax and ease of use as that is the main attracting point to the users (or developers) who aims to get the job done quickly and efficiently. However there are various scripting languges and tools with their owns pros and cons depending on the features they have to offer, the simplified syntax they have in store, the limitations they have by nature etc., Script is an executable program which is accomplished to automate the mundane tasks in a simple and easy manner that requires a minimal or no human intervention thereby resulting in time saving. We use MySQL V 5.6 for Windows, with JDBC driver for MySQL - MySQL JDBC Connector 5.1.29. 4.For our example Order Processing System, we will use MySQL open source database. If we call fLocal again, we'll just create a new variable. So now we can see that even though we have created one q variable, that variable isn't available anymore in other scopes. Since we create q with the def keyword, we won't be able to access it via the global scope.Įvidently, we can access q using the fLocal function: logger = Logger.getLogger("oovy") The reason why it's failing is that q is a local variable, which belongs to the scope of function fLocal. ("- Local variable doesn't exist outside") So, let's try and define a global variable y and a function-local variable: logger = Logger.getLogger("oovy") This way, we define this variable to be part of the scope where the thread is running. ![]() ![]() Specifically, we'll be looking at keyword def. ![]()
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