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1	1	= Introduction =
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	3	+ Variable is a container that holds a value and can be called in the iXPath Scenario. The importance of variables is to make flexibility in using some values without referring to their origins.
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	5	+There are 2 types of  variables:
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	7	+* System variables
	8	+* Local variables
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	10	+To call a variable, we should put it inside ${}. Eg: for a variable named ‘iXVar’, it can be called as ${iXVar}.
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	12	+== System variables ==
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	14	+System variables define some default values in the system, and they can be called by users several times.
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	16	+Here is the list of system variables :
	17	+
	18	+1. At the declaration of the scenario:
	19	+1*. iXSession: it returns the ID of the current session.
	20	+1*. iXSessionPath: gets the Path of the session folder.
	21	+1*. env: name of the environment.
	22	+1*. inputFile: this variable collect all input files in one list.
	23	+1. For a **mail listener : **
	24	+1*. iXFrom: refers to the sender of the mail.
	25	+1*. iXSubject: refers to the mail subject.
	26	+1. For an **AS2 listener **:
	27	+1*. iXFrom: return the value of the AS2 sender.
	28	+1. All connectors declare a system variable of type BpmnFile, the connector variable uses a bunch of functions to handle the list of BpmnFiles that will be detailed in the table below :
	29	+1*. (((
	30	+|(% style="width:161px" %)Function|(% style="width:397px" %)Description|(% style="width:352px" %)Use
	31	+|(% style="width:161px" %)Get(i) |(% style="width:397px" %)Get a file with index number "i" from the BpmnFile list, the indexes begin from 0 as the first element, and so on. |(% style="width:352px" %)(((
	32	+if we have an XmlToXml connector named "XmlToXml1" we can get second bpmn file as :
	33	+
	34	+${XmlToXml1.get(1)}
	35	+)))
	36	+|(% style="width:161px" %) |(% style="width:397px" %) |(% style="width:352px" %)
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	39	+)))
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