net.openhft.saxophone.json.handler

Interface ResetHook

All Superinterfaces:

JsonHandlerBase

public interface ResetHook
extends JsonHandlerBase

Reset hook is called at the end of JsonParser.reset() call. JsonParser is designed to be reused, because it's allocation costs are pretty high, but parser's handlers couldn't be updated after construction, ResetHook allows to reuse the handlers implementation too.

Example usage:

 class MapConstructor implements ObjectKeyHandler, StringValueHandler, ResetHook {
     private Map<String, String> map = new HashMap<String, String>();
     private String key;

     public Map<String, String> getMap() {
         return map;
     }

     &#64;Override
     public boolean onObjectKey(CharSequence key) {
         key = key.toString();
         return true;
     }

     &#64;Override
     public boolean onStringValue(CharSequence value) throws InvalidArgumentException {
         if (key == null)
             throw new InvalidArgumentException("Only objects are expected");
         map.put(key, value.toString());
         key = null;
         return true;
     }

     &#64;Override
     public void onReset() {
         map = new HashMap&lt;String, String&gt;();
     }
 }
 

Method Summary

Modifier and Type	Method and Description
void	onReset() Performs an action on JsonParser.reset() call.

Method Detail

onReset

void onReset()

Performs an action on JsonParser.reset() call.

Unchecked exceptions, that might be thrown in this method, are relayed to the JsonParser.reset() caller.