I need to save some additional state into textfield, something similar
to form context. I would have simply done:
public class TextFieldWithMap extends TextField {
@Parameter(defaultPrefix="prop")
private Map<String, Object> _dataMap;
public void setDataMap(Map<String, Object> aDataMap) {
_dataMap = aDataMap;
}
public Object getDataValue(String aKey) {
try { return _dataMap.get(aKey); }
catch(NullPointerException npe) { return null; }
}
}
but TextField is a final class. Instead, I had to duplicate Tapestry
code and extend AbstractTextField:
public class TextFieldWithMap extends AbstractTextField {
@Parameter(defaultPrefix="prop")
private Map<String, Object> _dataMap;
// This is very UGLY (copied from TextField)
@Override
protected final void writeFieldTag(MarkupWriter aWriter, String aValue)
{
aWriter.element(
"input","type", "text","name",
getControlName(),"id", getClientId(),
"value", aValue,"size", getWidth());
}
// This too, is very UGLY (copied from TextField)
final void afterRender(MarkupWriter writer) {
writer.end();
}
public void setDataMap(Map<String, Object> aDataMap) {
_dataMap = aDataMap;
}
public Object getDataValue(String aKey) {
try { return _dataMap.get(aKey); }
catch(NullPointerException npe) { return null; }
}
}
My TextFieldWithMap component works as expected, I'm only asking what
are the reasons for TextField being a final class, and is my way of
building TextFieldWithMap typical "Tapestry 5" approach or should I do
it differently.
-adam
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
