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Mapping variables

Freemarker official documentation

RunMyProcess Freemarker Functions

Basic Mapping

Let's say you have a variable "firstname1" in your process, and you want to store its value into "firstname2", how to do this into RunMyProcess?

First possibility

You enter, either in input variables or output variables of an activity

firstname2 = ${firstname1}

Second possibility

You click on the 'open an editing window' link and you write

<#assign tmp = firstname1>
${tmp}

it means : store the value of 'firstname1' into 'tmp' then return 'tmp' value, that will be assigned to 'firstname2'

2011-06-14_122309.png

Parsing a structure

OK, now let's say you want to parse a structure and access to a specific item.

JSONObject

Here's my structure :

If i click on 'my_json', i see this :

As you can see, a json structure starts with '{' and ends with '}' and contains couples of key:value

To create a variable my_address containing the address above, i'll write :

my_address = ${my_json.address}

JSONArray

Now let's try to parse an array :

As you can see, this is an array with 2 elements (index 0 then index 1)

If i want to retrieve the address of the first element, i'll write :

my_address = ${my_array[0].address}

Note : I access to the first element with my_array[0], which is a json structure, then I add .address