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How to read variable (xml) from workflowEvent
In workflow event , there xml variable which contains data.
I want to read those data to get some info out of it . How can i parse this data because when i try to check in event schema this variable is not present because data is not stored in data schema.
Thanks,
Kaushal
Thanks Marcel for pointing how to use it , I guess instance variable in java script , can you please help with one example so i can explore further. Thanks
Hello Kaushal,
You can consider them as global variables which can be used not only by downstreem activities but anywhere in in the wf instance see more below:
JavaScript scripts and templates
How to use an instance variable in a workflow Split activity
PS:
- you can also pass them from one runtime to another of the same wf 
Marcel
thanks for example. I am able to get the variable accessible in another activity of workflow. but i can access these variable value if its static or one. how to read variable against the each column below is example:
1. there is variable element (xml) in workflowevent against each activity
2. when i read variable under each values its remain same for each instance.
output i want to retrieve
Event id , Cell_offest
39664368 72057.....
419..., 720....
JavaScript to get the data:
var query = xtk.queryDef.create(
<queryDef schema={vars.targetSchema} operation="select" distinct = "true">
<select>
<node expr="@activity"/>
</select>
</queryDef>
);
var resul = query.ExecuteQuery();
for each(var r in resul)
{
logInfo( "Activity name " + r.@activity + " Schema Name : " + vars.schema);
}
logInfo:
02/10/2017 16:36:31 js Activity name fileExport Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name extract2 Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name queryEvents Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name writer22 Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name lock Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name extract Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name writer2 Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name delivery2 Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name schedule Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name query Schema Name : xtk:workflowEvent
02/10/2017 16:36:31 js Activity name start Schema Name : xtk:workflowEvent
if changing to instance.vars.schema, all data appears as null
02/10/2017 16:41:32 js Activity name start4 Schema Name : undefined
02/10/2017 16:41:32 js Activity name fileExport Schema Name : undefined
02/10/2017 16:41:32 js Activity name extract2 Schema Name : undefined
02/10/2017 16:41:32 js Activity name queryEvents Schema Name : undefined
02/10/2017 16:41:32 js Activity name writer22 Schema Name : undefined
02/10/2017 16:41:32 js Activity name lock Schema Name : undefined
02/10/2017 16:41:32 js Activity name extract Schema Name : undefined
02/10/2017 16:41:32 js Activity name writer2 Schema Name : undefined
02/10/2017 16:41:32 js Activity name delivery2 Schema Name : undefined
02/10/2017 16:41:32 js Activity name schedule Schema Name : undefined
02/10/2017 16:41:32 js Activity name query Schema Name : undefined
02/10/2017 16:41:32 js Activity name start Schema Name : undefined
02/10/2017 16:41:32 js Activity name signal Schema Name : undefined
Hello Kaushal,
-why you need to use xtkQuerDef? You can access current workflow instance, event,task ... variables by eg typing instance.vars.CELL_OFFSET... what ever is created by developer or by any activity, event automatically.
-why targetSchema is undefined? because i presume your only activity in wf is javascript activity you need to have any of query activities
--> read group, query, rdbms, file import ... to have this variable initialized in vars.tergetSchema
Without query activity you get undefined
PS:
Bytheway you have helped me too. Where have you found vars.targetingSchema I was looking for variable that holds temp table schema name and had to get this information differently
Marcel
