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CONCATENATE
Use the '+
' (plus) operator to concatenate strings or a combination of strings and other type values to produce a single string value.
Syntax
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string1 + string2 + ... + value1 + ... |
- string1 - The first string that you want to concatenate.
- string2 - The second string that you want to concatenate.
- value1 - A value of some type of number, date or boolean that you want to add to the new string value.
Return type
- string
Examples
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Suppose
Person.FirstName = "Carl"
Person.LastName =
then Person.FirstName + Person.LastName
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Note the correct use of parenthesis in combination with concatenation, see UPPERCASE and LOWERCASE syntax. |
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There exists a |
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JOIN
This function joins a series of values into one string, separated with a character of your choice.
Syntax
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JOIN ( argument1 , argument2 , ... , separator ) |
- argument1, argument2 - Attributes or expressions that contain the values that will be joint to a single string. JOIN works for all base types, even multivalued.
- separator - A string value that will be used as separator symbol.
Return type
- string
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an UNKNOWN value will be represented as an empty entry in the result string. |
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The |
Examples
Suppose you have a model containing the following attributes.
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MATCH
The MATCH
function compares a string pattern to another string and returns TRUE if the string exactly matches the pattern, and otherwise FALSE. The MATCH function is case-sensitive.
Syntax
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MATCH ( pattern , string ) |
- pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
- string - String value, attribute of base type string or an expression that results in a string value.
Return type
- boolean
Examples
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FIND
The FIND
function looks for a string pattern within another string and returns the first matching characters. The function is case-sensitive.
Syntax
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FIND ( pattern , string )
FIND ( pattern , string , startIndex ) |
- pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
- string - An attribute of base type string or an expression that results in a string.
- startIndex - A positive integer value indicating at which character of the string the search should start (inclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The first character starts at index 0.
Return type
- string
Examples
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FIRST
FIRST returns the first character(s) of a string, based on the number of characters you specify.
Syntax
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FIRST integer CHARACTERS OF string
FIRST CHARACTER OF string |
- integer - A positive integer value. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. FIRST CHARACTER OF can be used to retrieve only the first character of the string.
- string - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- string
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If you prefer a functional syntax, you can use the STR_FRONT( string, integer ) function. Example: STR_FRONT("Blueriq", 3) = "Blu" |
Examples
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LAST
LAST returns the last character(s) of a string, based on the number of characters you specify.
Syntax
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LAST integer CHARACTERS OF string
LAST CHARACTER OF string |
- integer - A positive integer value. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. LAST CHARACTER OF can be used to retrieve only the last character of the string.
- string - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- string
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If you prefer a functional syntax, you can use the STR_BACK ( string, integer ) function. Example: STR_BACK("Blueriq", 3) = "riq" |
Examples
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LENGTH
LENGTH
returns the length of a string
Syntax
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LENGTH ( string ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- integer
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Spaces at the start of the end of the string are counted as well, the string is not trimmed. |
Example
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UPPERCASE
UPPERCASE
returns a string with all characters in uppercase
Syntax
Code Block |
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UPPERCASE string |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
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UPPERCASE does not have a functional syntax. This can have unexpected effects on concatenation. UPPERCASE ( "hello" ) + LOWERCASE ( " WORLD" ) is equivalent to UPPERCASE ( ( "hello" ) + LOWERCASE ( " WORLD" ) ). Use ( UPPERCASE string ) syntax to avoid this behaviour. |
Return type
- string
Example
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LOWERCASE
LOWERCASE
returns a string with all characters in lowercase
Syntax
Code Block |
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LOWERCASE string
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- string - An attribute of base type string, an expression that results in a string or a constant string value.
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LOWERCASE does not have a functional syntax. This can have unexpected effects on concatenation. LOWERCASE ( "HELLO" ) + UPPERCASE ( " world" ) is equivalent to LOWERCASE ( ( "HELLO" ) + UPPERCASE ( " world" ) ). Use ( LOWERCASE string ) syntax to avoid this behaviour. |
Return type
- string
Example
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CAPITALIZE
CAPITALIZE
returns a string with the first character uppercased
Syntax
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CAPITALIZE string
CAPITALIZE ( string, lowerTheRest ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- lowerTheRest - An attribute of base type boolean, an expression that results in a boolean or a constant boolean value, indicating that the other characters need to be lowercased. This parameter is optional and if it is not supplied, the other characters are left untouched.
Return type
- string
Example
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TRIM
TRIM
strips the leading and trailing spaces from a string
Syntax
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TRIM string |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- string
Example
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INDEXOF
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INDEXOF
returns the index of the first occurrence of a specified substring in a string.
Syntax
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INDEXOF ( string , substring )
INDEXOF ( string , substring , startIndex ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- substring - An attribute of base type string, an expression that results in a string or a constant string value.
- startIndex - A (positive) integer value indicating at which character the search for the substring should start (inclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value.
The first character starts at index 0.
Return type
- integer - the index of the first occurrence of the specified substring or -1 if it is not found
Example
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There is no restriction on the value of startIndex. If it is negative, it has the same effect as if it were zero: this entire string may be searched. If it is greater than the length of this string, it has the same effect as if it were equal to the length of this string: -1 is returned. |
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LASTINDEXOF
LASTINDEXOF
returns the index of the last occurrence of a specified substring in a string
Syntax
Code Block |
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LASTINDEXOF ( string , substring )
LASTINDEXOF ( string , substring , startIndex ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- substring - An attribute of base type string, an expression that results in a string or a constant string value.
- startIndex - A (positive) integer value indicating at which character the search for the substring should start (inclusive), searching backwards. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value.
Return type
- integer - the index of the last occurrence of the specified substring or -1 if it is not found
Example
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There is no restriction on the value of startIndex. If it is negative, it has the same effect as if it were zero: -1 is returned since there are no characters before character 0. If startIndex is greater than the length of this string, it has the same effect as if it were equal to the length of this string, so the whole string is searched. |
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SUBSTRING
SUBSTRING
returns the substring of a given string starting from the index provided and ending at the end index if provided, or the end of the string
Syntax
Code Block |
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SUBSTRING ( string , startIndex )
SUBSTRING ( string , startIndex , endIndex ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- startIndex - A positive integer value indicating at which character the substring should start (inclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The first character starts at index 0.
- endIndex - A positive integer value indicating at which character the substring should end (exclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The
endIndex
cannot exceed the length of the string and should be larger than the startIndex.
Return type
- string
Example
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SUBSTRING BEFORE
SUBSTRING_BEFORE
returns the start of a given string before the first occurrence of substring, or an empty string if substring is not found
Syntax
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SUBSTRING BEFORE substring IN string
SUBSTRING_BEFORE ( string , substring ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- substring - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- string
Example
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SUBSTRING_BEFORE ( "hello:world:all" , ":" )
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SUBSTRING AFTER
SUBSTRING_AFTER
returns the end of a given string after the first occurrence of substring, or an empty string if substring is not found
Syntax
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SUBSTRING AFTER substring IN string
SUBSTRING_AFTER ( string , substring ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- substring - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- string
Example
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SPLIT
SPLIT
returns a multivalued attribute containing every substring that is delimited by the given pattern
Syntax
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SPLIT string ON pattern
SPLIT ( string , pattern ) |
- string - An attribute of base type string, an expression that results in a string or a constant string value.
- pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
Return type
- string (multivalued)
Example
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REPLACE
The REPLACE
function replaces every occurrence of a string pattern within another string with a provided replacement string. The function is case-sensitive.
Syntax
Code Block |
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REPLACE pattern IN string WITH replacement
REPLACE ( pattern , string , replacement ) |
- pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
- string - An attribute of base type string or an expression that results in a string.
- replacement - An attribute of base type string or an expression that results in a string.
Return type
- string. If the pattern is not found, the original string is returned.
Examples
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The first argument is a pattern (regular expression) and can therefore contain specials like \s for a space. The second and third arguments are strings or expressions, so \s will result in \s. |
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EQUALS
EQUALS
compares two strings and returns TRUE if and only if they are equal. This function is case sensitive.
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Only use this function if you need a case sensitive comparison of two strings. If you want to compare strings case insensitive, use the '=' operator instead. |
Syntax
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string1 EQUALS string2
EQUALS ( string1 , string2 ) |
- string1 - An attribute of base type string, an expression that results in a string or a constant string value.
- string2 - An attribute of base type string, an expression that results in a string or a constant string value.
Return type
- boolean
Example
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