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13	13
14	14	To call a variable, we should put it inside ${}. Eg: for a variable named ‘iXVar’, it can be called as ${iXVar}.
15	15
16		-== System variables ==
	16	+== System variables ==
17	17
18	18	System variables define some default values in the system, and they can be called by users several times.
19	19
...	...	@@ -33,7 +33,7 @@
33	33	1*. (((
34	34	(% style="width:884px" %)
35	35	|(% style="width:150px" %)**Function**|(% style="width:365px" %)**Description**|(% style="width:367px" %)**Use**
36		-|(% style="width:150px" %)Get( x ) |(% style="width:365px" %)Get a file with index number "x" from the BpmnFile list, the indexes begin from 0 as the first element, and so on.|(% style="width:367px" %)(((
	36	+|(% style="width:150px" %)Get(i) |(% style="width:365px" %)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:367px" %)(((
37	37	if we have an XmlToXml connector named "XmlToXml1" we can get __the second__ BpmnFile as :
38	38
39	39	${XmlToXml1.get(1)}
...	...	@@ -59,8 +59,9 @@
59	59	)))
60	60	)))
61	61
62		-== Local variables ==
63	63
	63	+== Local variables ==
	64	+
64	64	Local variable is a type of variable that can be newly created and used for a certain need.
65	65
66	66	So as to create a local variable "newVar" with a value equals to "var number 1", we should write this piece of XSL code :
...	...	@@ -70,43 +70,17 @@
70	70
71	71	{{/code}}
72	72
73		-The call of this new variable in the scenario is similar to previous system variables:  **${newVar}.**
	74	+The call of this new variable in the scnario is similar to previous system variables:  **${newVar}.**
74	74
75		-To get 'newVar' inside an XSL file :
	76	+To get 'newVar' from XSL file :
76	76
77	77	{{code language="XML"}}
78		-<xsl:value-of select="ixf:getVar('newVar')"></xsl:value-of>
	79	+<xsl:value-of select="ixf:getVar('Var')"></xsl:value-of>
79	79	{{/code}}
80	80
81		-= Examples =
82	82
83		-We set a simple example of a scenario to illustrate how to use variables.
84	84
85		-We want to receive a file by a FileListener and send it by mail that contains a message body.
86	86
87		-here is the scenario:
88	88
89		- [[image:2021-04-27_21h31_55.png||height="140" width="446"]]
90	90
91		-The configuration of the "SendMail" is :
92		-
93		- [[image:2021-04-27_21h32_07.png||height="373" width="281"]]
94		-
95		-As shown in the mail body, we called 3 variables which are :
96		-
97		-* Env: the current environment
98		-* iXSession : ID session
99		-* path : the path of BpmnFile in FileListener1.
100		-
101		-= String Class =
102		-
103		-in java language, The String class represents character strings. It contains a lot of functions to handle String object.
104		-
105		-you can discover all these functions on the following URL :
106		-
107		-[[https:~~/~~/docs.oracle.com/javase/8/docs/api/java/lang/String.html#method.summary>>https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#method.summary]]
108		-
109		-Eg: to check if the variable is empty or not, we refer to the isEmpty() method
110		-
111		-
112	112

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