Utilizes Jmesa feature as an underlying mechanism so serves managing representation of data in tabular form, filter,sort, paginate, export your. – The Export represents the export type that the user invoked. What you need to do is check to see if an export is being done. If so then just let JMesa output to the response. There are no filters to set up. You can find out.
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Mjesa means we won’t have to hard-code a part of the image URL. With this, no onClick method will be generated for the column header, preventing users from accidentally causing a mess.
We’ll also need a bit of new code in the search results page in the project, this is actually a different search results page, as you, oh sharp-eyed reader, have already noticed: Join me in exploring JMesa! The application-specific concrete class, after all this, can be pretty simple: User-Friendly Format Column We continue by introducing a more user-friendly value into the format column. We will display the value of each HelloWorld item’s toString method in an additional column We will display more user-friendly values in the format column We will ensure that columns that cannot be reasonably sorted are made unsortable We will add columns containing links to edit and delete pages for the HelloWorld items We will display images in the edit and delete columns We will not display the Pk property of each item, but will pass its value to edit and delete pages as needed We will enable the user to retrieve a comma-separated-values CSV copy of the table contents We will enable the user to retrieve an Excel spreadsheet copy of the table contents We will disable filtering and highlighting We will reorganize the toolbar items in a different order Believe it or not, implementing each of these features will be quite easy!
Let’s start with some requirements: We continue by introducing a more user-friendly value into the format column. This is our opportunity to introduce CoreContext and WebContext, two important classes that plug our code into the JMesa infrastructure. Since this is functionality I use a lot, let’s design it for reuse, refactoring out reusable code jmeza one class, and code tailored to this project into another.
Now I don’t have to like tables: Running the Table With JMesa. It provides color striping of table rows and onMouseOver row highlighting. The JMesa default is astounding, but no default is ever exactly like you want it. Isn’t that the sort of thing Ajax is supposed to help us avoid?
It usually comes down to something like this: Edport was tested with Tomcat 6, but should work with any servlet container. As complex as it might seem, it’s actually the easiest part of the process.
For page organization, not so much. We’ll also need a bit of new ezport in the search results page in the project, this is actually a different search results page, as you, oh sharp-eyed reader, have already noticed:. On the very first page of the JMesa web site we find four lines of code that we can appropriate and refashion for a Spring controller: OK, we played around with some of JMesa’s images and CSS style sheets to make it fit in with our color scheme, but that really shouldn’t count.
Now we have the images and the links.
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Finally, we use the Spring jmesa-servlet. Since the details of table creation are encapulated in a factory, this is uncluttered: This has a lot of code note the abstract methodsin part because I know I usually want edit and delete columns.
The whole thing seems so error-prone note to self: A hands-on introduction to frameworks and containers. If it is exported, the results will be written directly to the output stream of the response; if not, they’ll be rendered as a string containing our HTML table:. Installing the Eclipse project is not difficult; the included Ant build file and these instructions assume Tomcat as the deployment target I’m using version 6.
This makes possible many amazing features.
Fiuxed Fixed a bug with the DroplistFilterEditor would not use the filter label, but nmesa uses the value. In fact, we’ll learn even more if we put this page in a context.
Installation of the Eclipse Project Installing the Eclipse project is not difficult; the included Ant build file and these instructions assume Tomcat as the deployment target I’m using version 6.
Before we can get to JMesa, though, we’ll need a few things: Don’t get me wrong: Creating tables with JMesa is very easy. The application-specific concrete class, after all this, can be pretty simple:. This is just one more branch on the decision tree we saw in the previous controller:. It contains a preference called “html.