CODEWITHSUNDEEP
javawicketdataview
darshakat
darshakat

Reputation: 689

Any possibility to display Map<String, String> in a apache wicket table (DataView), without getting key list

I create a table in html page.

There are two columns in that table.

  1. wicket:id = “key_column”
  2. wicket:id = “value_column”

I'm going to display map data (key and value).

How I solved this is ..

TreeMap<String, String> map = new Treemap<~>();
map = getDataFormProvider();

List<String> keyList = new ArrayList<~>();

for (String key : map.keySet()) {
    keyList.add(key);
}

DataView<String> dataView = new DataView<~>("displayPanel", new ListDataProvider(keyList)) {
    @Override
    protected void populateItem(Item item) {
        String key = (String) item.getModelObject();
        item.add(new Label("key_column", key));
        item.add(new Label("value_column", map.get(key)));
    }
};

Is there any possibility to display map as a table directly without getting keyList like above?

Upvotes: 1

Views: 1445

Answers (1)

polypiel
polypiel

Reputation: 2341

Not really. But you can reduce the code passing the list of entries:

DataView<Entry<String, String>> dataView = new DataView<~>("displayPanel", new ListDataProvider(new ArrayList<Entry<String, String>(map.entrySet())) {
    @Override
    protected void populateItem(Item item) {
        Entry<String, String> entry = item.getModelObject();
        item.add(new Label("key_column", entry.getKey()));
        item.add(new Label("value_column", entry.getValue()));
    }
});

Upvotes: 2

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