Mastering JavaServer Faces 2.2

Deleting a table row

Deleting a table row can be easily implemented by performing the following steps:

1. Define a method in the managed bean that receives information about the row that should be deleted, and remove it from the collection that feeds the table.

   For example, for a Set collection, the code will be as follows (HashSet<Players>):

   public void deleteRowHashSet(Players player) {
     dataHashSet.remove(player);       
   }

   For Map<String, Players>, the code will be as follows:

   public void deleteRowHashMap(Object key) {
     dataHashMap.remove(String.valueOf(key));       
   }

2. Besides columns containing data, add a new column in the table named Delete. Each row can be a link to the deleteXXX method.

   For example, we can delete a value from Set (HashSet<Players>), as shown in ...