map data type usage

u00171

• February 23, 2012 00:00

• Answered

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Hi,

I would like to know how to use map, specifically initializing it. For example I do not know why I get "Unexpected null value" error:


map[string, string] values;
function void myFunc(string key, string value)
{
if(values==null)
values[key] = "";

values[key] = value;
}

Thanks.

• 

  admin

  • February 29, 2012 12:18

  0

  Comment actions Permalink

  Hi U00171,
  
  can you be more specific? For me Reformat with code:
  
  

  
  //#CTL2
  
  map[string, string] values;
  
  function void myFunc(string key, string value)
  {
  if(values==null)
  values[key] = "";
  
  values[key] = value;
  }
  
  function integer transform() {
  	myFunc(lowerCase($in.0.field1), upperCase($in.0.field1));
  	return OK;
  }
  

  
  
  Works as expected. What version of Clover you use?
  
  Cannot it be that your "key" parameter is null? So error is not indicating null map, but null value used as key?

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