In a previous post we learned how to use a together block to keep elements together. We can also layout elements in a different way: using hidden lines. We define our elements and by using the keyword [hidden] in our line definition the elements are layout as if there was a line, but we don’t see it. This gives us great flexibility on how we layout our elements.
We have a lot of ways to customize our PlantUML diagrams. We can change the colors and we can even set gradients as color. A gradient has two colors and a direction. The direction of the gradient is set by the separator between the two colors. We can use the following separators to set the gradient direction:
An SQL injection attack consists of insertion or “injection” of a malicious data via the SQL query input from the client to the application. In our example project we have a small Spring Boot based blog application. This application exposes an endpoint to fetch blog articles based on the author:
If a class implements the Closeable interface Groovy adds the withCloseable method to the class. The withCloseable method has a closure as argument. The code in the closure is executed and then the implementation of the close method of the Closeable interface is invoked. The Closeable object is passed as argument to the closure, so we can refer to it inside the closure.
PlantUML has some features that come from the underlying software to create diagrams. Graphviz is used by PlantUML and we can use Graphviz features in our PlantUML diagrams. For example we can align multi-line text of labels to be either center (default), left or right aligned using a Graphviz feature. When we want to text to be center aligned we simply use the new-line character \n. If we want to have our text left aligned we use \l instead of \n. And to right align the text we use \r.
Conference report with takeaways from the Fronteers conference
We’ll try to summarize the nicest takeaways from the past couple of days. Continue reading →
With Asciidoctor markup we can position images in our document. We can even float images, so text can next to an image, inside only below or about the image. We can also define multiple images to float, so the images are displayed on the same line next to each other. Any text that follows these images is also displayed next to the images. If we want only to have floating images, but the text starting under the images we can place the images inside an open block and assign the block the role float-group.