Tutorial by Topics: usi

Sqoop incremental import comes into picture because of a phenomenon called CDC i.e. Change Data Capture. Now what is CDC? CDC is a design pattern that captures individual data changes instead of dealing with the entire data. Instead of dumping our entire database, using CDC, we could capture ju...

The Scripting.FileSystemObject is much more robust that the legacy methods in this topic. It should be preferred in almost all cases.

AnnotationDetails@OneToOneSpecifies a one to one relationship with a corresponding object.@OneToManySpecifies a single object that maps to many objects.@ManyToOneSpecifies a collection of objects that map to a single object.@EntitySpecifies an object that maps to a database table.@TableSpecifies wh...

In the first versions of iText, there was only one font class: Font. With this font, you could create a Font object for fourteen fonts from five font families: Helvetica (regular, bold, oblique, bold-oblique), Times Roman (regular, bold, italic, bold-italic), Courier (regular, bold, oblique, bold...

Creating a document in which you have to switch between styles frequently tends to be tedious in iText 5. You need to create a lot of Chunk objects and you always have to make a trade-off between applying the styles directly to every new Chunk or creating a helper method that creates the Chunk for...

The iText 5 class names PdfPTable and PdfPCell were chosen because we already had classes named Table and Cell to create table and cell objects at the highest programming level. There was also a class named PdfTable to be used by iText internally. Those classes had a lot of flaws and they were dep...

The code to convert a plain text file to a PDF document is pretty simple whether you use iText 5 or iText 7. In iText 7, you have the advantage that you can define the alignment at the level of the document. In iText 5, you have to set the alignment for every separate Paragraph object. To underst...

In iText 5, you can't use the add() method to add a Paragraph to a Document if you want to organize the content in columns. We can't reuse the code of the Text2Pdf.java (iText 5) example. Instead we have to create a ColumnText object, we have to add all the Paragraph objects to this object, and o...

In the original design for iText, it was possible to create a high-level Document object, and then have different DocListener objects listening to that Document object. This was achieved by using different writers: a PdfWriter, an HTMLWriter, and an RtfWriter. When using a PdfWriter, a PdfDocument...

The Codeigniter Sessions class uses browser cookies to save data that will persist across multiple page loads. Reference: https://codeigniter.com/user_guide/libraries/sessions.html

adb push [-p] LOCAL REMOTE adb pull [-a] [-p] REMOTE [LOCAL] ParametersDetailsLOCALA file or directory that is located on the user's computerREMOTEA file or directory that is located on the user's Android device-aAlso copy the file the remote file's timestamp and file mode data-pDisplay tra...

Virtual Directory / Nested Application with Views Pitfall If you're going to be using Express to render views using a View Engine, you'll need to pass the virtualDirPath value in to your views `res.render('index', { virtualDirPath: virtualDirPath });` The reason for doing this is to make yo...