Class AsyncObjectSearchResult

• API Hierarchy
  • GSObject *
    • GameObject
      • AsyncQueryHelper
        • AsyncObjectSearchResult

• An AsyncObjectSearchResult represents an asynchronous search of objects in the game world.
• HowTo/Search for objects in the world provides a detailed tutorial on asynchronous searches.

Related Messages

• Messages sent to and from TrackMark objects are listed below:

Major	Minor	Source	Destination	Description
ObjectSearch	AsyncResult	AsyncObjectSearchResult	Broadcast	Search is complete, and GetResults may be called.
ObjectSearch	AsyncLoadComplete	AsyncObjectSearchResult	Broadcast	Loading of search result has been completed. See World.GetGameObjectByID().
ObjectSearch	Failure	AsyncObjectSearchResult	Broadcast	Search has failed, call GetSearchErrorCode for more information.
ObjectSearch	Expired	AsyncObjectSearchResult	Broadcast	New search results are available, and this result has expired. Not posted by default - see World.GetNamedObjectList().

Methods

GetResults

public native NamedObjectInfo[] GetResults(void)

Parameters

• None

Returned Value

• Array of search results

Syntax

NamedObjectInfo[] results = searchObj.GetResults();
for (int i = 0; i < results.size(); ++i)
{
  NamedObjectInfo result = results[i];
  Interface.Log("Result " + i + ": '" + result.localisedUsername + "'");
  // Process each result in some useful way...
}

Notes

• The caller must wait for the search to complete, indicated by the ObjectSearch/AsyncResult message.
• If the search is not complete, calling this method will result in an exception.

GetQueryErrorCode

public native int GetQueryErrorCode(void)

See GetSearchErrorCode

GetSearchErrorCode

public native int GetSearchErrorCode(void)

Parameters

• None

Returned Value

• Error code for the query

Syntax

wait()
{
  on "ObjectSearch", "Failure", msg:
    if (msg.src != searchObj)
      continue;
    Interface.Log("Search error " + searchObj.GetSearchErrorCode();
    break;
}

Notes

• When a ObjectSearch/Failure message is posted, this method will return an error code.
• Error codes are defined in the ERROR_ constants for AsyncQueryHelper.

Code Examples

thread void SearchForTrains()
{
  // Start a search for any traincars within the world
  AsyncObjectSearchResult searchObj = World.GetNamedObjectList(AssetCategory.TrainCar, "");
  
  // Sniff for search related messages, and then wait for either completion or failure
  Sniff(searchObj, "ObjectSearch", "", true);
  Message msg;
  wait()
  {
    on "ObjectSearch", "Failure", msg:
      if (msg.src == searchObj)
        break;
      continue;
    
    on "ObjectSearch", "AsyncResult", msg:
      if (msg.src == searchObj)
        break;
      continue;
  };
  
  // Check the results
  int errCode = searchObj.GetSearchErrorCode();
  if (errCode != AsyncObjectSearchResult.ERROR_NONE)
  {
    // TODO: Add any error handling here, such as waiting and reattempting the
    // search later, showing an error message, throwing script exceptions, etc.
    return;
  }
  
  // Get the search results
  NamedObjectInfo[] results = searchObj.GetResults();
  
  // TODO: Add any processing of the results here
}

Related Methods

• World.GetGameObjectByID()
• World.GetNamedObjectList()