The delete() method deletes an item in the database with the specified key. Delete operations are asynchronous only.

For example, to delete an item you might use code similar to the following:

OperationFuture<Boolean> delOp =
    client.delete("samplekey");

try {
    if (delOp.get().booleanValue()) {
        System.out.printf("Delete succeeded\n");
    }
    else {
        System.out.printf("Delete failed\n");
    }

}
catch (Exception e) {
    System.out.println("Failed to delete " + e);
}