The Jitterbit scripting language can be used in all types of scripts within Jitterbit, including scripts created as project items within operations as well as scripts within transformation mappings. See Creating a Script for instructions on creating a script and using the script builder in Jitterbit.
Each Jitterbit script is always surrounded by a set of
</trans> tags. This applies to scripts created as project items, as well as to "Formula Builder" scripts created within transformation mappings.
|NOTE: The result that is returned in a Jitterbit script or formula will be the returned value of the last statement of the script before the closing |
</trans> tags, "//" marks the start of a comment, and affects the text to the end of that line. Comments will not be part of the script that is run or the transformed result.
For example, a comment on a single line might look like this:
<trans> // This is a comment DbLookup(...) </trans>
You can also use a block-style comment:
<trans> /* This is a multi-line comment This line is also a comment This is the final line of the comment */ DbLookup(...) </trans>
In addition, Jitterbit supports regular expressions as means of specifying and recognizing strings of text, including particular characters, words, or character patterns. Jitterbit supports the regular expression syntax from the Perl 5 programming language.
<trans> RegExMatch(<input>,<expression>,...) </trans>
For more information, see http://www.boost.org/doc/libs/1_49_0/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html.
Functions and Data Elements
A Jitterbit script consists of built-in functions, data elements, and logic to be executed, separated by a semi-colon (;) characters. The Jitterbit script language has few control structures, but has many functions specifically designed for data manipulation.
All of the built-in Jitterbit functions that are available under the Functions tab when creating a script are available for reference under Formula Builder.
Global Data Elements
You can access all global data elements under the Data Elements tab when creating a script. These include global variables, project variables, and Jitterbit variables. See Global Variables and Project Variables for more information. Jitterbit variables are documented individually under Jitterbit Variables.
Global data elements are accessed either by typing a $ sign before the element name or by using the
Variable names can be composed from the letters (a-z, A-Z), numbers (0-9), period, and underscore characters. Other characters are not permitted. (Note that in the case of local variables, the period character is not allowed.)
This example references a global data element using
$ to create a global dictionary:
<trans> $org.lookup.currency=Dict(); $org.lookup.currency="USD"; $org.lookup.currency="EUR"; </trans>
Here, a global data element to another global data element using the
<trans> Set("op2", Get("op")); </trans>
Note that for certain Jitterbit variables, because they describe data elements that include a hyphen, a character not allowed for variable names, you must reference them by using either the
<trans> Get("jitterbit.networking.http.request.header.content-type"); </trans>
Source Data Elements
If you are using a script created within the transformation, you also have access to source data elements. Source data elements are used to reference source data and are referred to by their paths in the source tree. More information is provided under Creating a Script.
This example assigns a source data element to a global data element:
<trans> $org.calculate.operand1=root$transaction.request$body$Calculate$input.Operand1$; </trans>
Local Data Elements
You can also use local data elements, also known as local variables, that you create and use within the same script. See Local Variables for more information. Characteristics of local data elements are as follows:
- A local data element is defined and used only within the expression; once its value is assigned in the expression, the local data element is deleted. Therefore, conflict between a local data element's value in the present expression and those from other expressions is not a concern.
- The local data element cannot be defined or retrieved by the
RunScript()can pass arguments to the script, e.g.
RunScript(SCRIPT_ID, 5, "abc",...). Values in the script can be assigned to predefined local variables _1, _2... In this example _1 represents the integer value of 5, while _2 represents the string value "abc". The local variable must be defined before it can be referenced, except in the case of the input arguments _1, _2,... described above.
ArgumentList()function is available for redefinition of a list of local data elements as input arguments.
All source data elements and global data elements that are not null have a type associated with them. Jitterbit supports the following data types: Integer, Long, Float, Double, Date, String, Boolean, Timespan, Bit, Binary, and Array. Data element types can be changed using the functions in the Conversion category.
An array is a collection of data elements. Each member in the collection can be of any supported type, including arrays. The members of an array can be accessed using the
You can also create arrays of global variables. An array global variable is an array of other global variables that in turn can be arrays.
Setting an Array
You can set values in an array using the
This sets the value of the global variable with the given name to value, and returns the value. If the first argument is an array or the name of an array data element, you can set the value of an array element by specifying its index (or indices for multi-dimensional arrays) as the third argument.
Not all the items in an array have to be of the same type. For example, you can create an array that holds a date, an integer, and a string. You can even create arrays inside other arrays.
This example creates an array with three elements of different types where each entry represents the current date and time:
As arrays are zero-indexed, the first element is at index 0 and the last element is at index (size -1). To append data to an array, pass either a negative index value or the size of the array (
Here are examples of setting values in an array:
Accessing an Array
You can access the items of an array using the
This returns the value of the global variable with the given name. If the first argument is an array or the name of an array data element, you can get a specific element by specifying its index (or indices for a multi-dimensional array such as a record-set) as the second argument.
Arrays are zero-indexed. To access the
These are examples of retrieving values from an array:
This example shows how you can first create a script that builds and returns an array. The second block shows running that script and assigning its returned value to a variable.
Certain Formula Builder functions return arrays. For example,
In Jitterbit, a dictionary is a special type of global variable array that holds key-value pairs. The steps and functions are:
Initialize the dictionary using the Dict function:
$d = Dict();
Load data with a key and a value:
$d['4011'] = 'Banana'; $d['4063'] = 'Tomato';
Check if the key already exists in the dictionary using the HasKey function:
HasKey($d,'4011'); // Returns true
In the example, we have already loaded the key '4011' so
HasKey($d,'4089'); // Returns false
If the key were not already loaded, for example '4089' the
Look up the value in the dictionary by passing the key and getting back the value:
$d['4011']; // Returns 'Banana'
In this example, the value returned would be
With dictionaries, keep these characteristics in mind:
- The scope of dictionaries is limited to the workflow. For example, if an operation loads a dictionary with 10,000 records, only those operations that are linked using On Success or On Failure paths—or with the
RunOperation()function—will have access to that dictionary. However, if an operation uses chunking and threading, and has a transformation that populates a dictionary, that dictionary will be inconsistent. This is because Jitterbit does not take values assigned to variables by multiple operation threads and concatenate them into a single value set. This is true for all global variables and arrays. To avoid this issue, use the default chunking/threading values when building an operation that populates dictionaries.
- Dictionaries, because they use a binary search, are very fast at finding keys and returning values. A key can usually be found within five to six tries. In contrast, compare that search to the work required to loop through a 10,000 record array to find a specific key.
- Dictionaries are written such that they do not materially impact available server memory for processing.
This is a summary of the operators supported by Jitterbit script. Jitterbit script will attempt to convert the arguments to enable the operation. If this is not possible, an error will be reported.
|For assignment of a variable. The right-hand argument will be assigned to the left-hand argument.|
|Add two numbers or concatenate strings. If a string is added to anything else, both arguments are converted to strings. If both arguments are numbers, the result will be of type double.|
|Increments the value by 1. Example: |
|Concatenates the string or adds numbers to the target variable. Example: |
|Subtract two numbers. The result will be of type double.|
|Divide two numbers. The result will be of type double.|
|Multiply two numbers. The result will be of type double.|
|Logical AND operator. The result will be of type boolean. && can also be used. This is always a short-circuit operator, meaning that if the left-hand argument evaluates to false, the right-hand argument will not be evaluated.|
|Logical OR operator. The result will be of type boolean. || can also be used. This is always a short-circuit operator, meaning that if the left-hand argument evaluates to true, the right-hand argument will not be evaluated.|
|Equals operator. Returns true if the arguments are equal. Returns false is they are not equal.|
|Not equals operator. Returns true if the arguments are not equal. Returns false if they are equal.|
|Negation operator. Converts a true value to false, and vice versa. Example: |
Used to build an array. Example:
Jitterbit recognizes these escape sequences when used in literal strings:
Literal strings have to be surrounded by double quotes (
") or single quotes (
The surrounding quote must be escaped using a backslash if it is used inside the string. Backslashes may need escaping if they are used with any of the escape sequence characters. For example:
$str = "String with line break.\nThat's the last line."; $str = 'Tony "The Gun" Marcello'; $str = "Tony \"The Gun\" Marcello"; $path = "C:\\tacos"
The Jitterbit Script language does not include control statements such as
while loops. Instead, you can use Jitterbit functions to achieve the same functionality. See the
While functions under Logical Functions. The
Eval function under General Functions can be used as a "try-catch" statement.
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