TCE条件表达式

 

TCE条件表达式

Table 16-3. Conditional Expression Values

Type	Description
integer	Specifies an integer in the format n; for example: 8
float	Specifies a floating point decimal in the format n.n; for example: 5.021
string	Specifies a string of characters surrounded by single quotation marks; for example: 'Mike'
date	Specifies a year, month, and day in the format: {yyyy/mm/dd} You must specify four digits for the year and two digits for month and day; for example: {1968/10/03}
time	Specifies the time in the following format: [hh:mm:ss:mmm] You must specify two digits for the hour, minutes, and seconds, and three digits for the milliseconds; for example: [01:45:37:025]
timestamp	Specifies a timestamp in the following format: {yyyy/mm/dd-hh:mm:ss:mmm} You must specify four digits for the year; two digits each for the month, day, hour, minutes, and seconds; and three digits for the milliseconds; for example: {1968/10/03-01:45:37:025}
field	Specifies a value derived from an object attribute or class constant in the format: $object-name.attribute-name or $object-name.class-constant-name object-name Specifies the object from which the attribute is taken. attribute-name Specifies the attribute from which the value is taken class-constant-name Specifies a class constant. Attributes and class constants are treated the same way throughout the Conditional subsystem. For example: $Person.Age

Table 16-4. Expression Comparison Operators

Expression	Description
= or = =	equal to
^=	case-insensitive equal to
!=	not equal to
<	less than
>	greater than
<=	less than or equal to
>=	greater than or equal to

Table 16-5. Conditional Subsystem Functions

Function	Description
INSTANCEOF	The INSTANCEOF function tests whether one class (string1) is contained in the hierarchy of the class represented by string2. This function returns TRUE if string1 is the name of a class that is in the hierarchy of the class represented by string2, inclusive. If string2 is not a class, the function returns FALSE. For example, DPdrCre is contained in the DOdrCre class, and the value returned is TRUE. A(obj) := "$obj.Class INSTANCEOF 'DOdrCre'";
ISIN IISIN	The ISIN and IISIN functions test whether one string is contained in another. For example, ell is contained in the string hello. $a.x contains hello. b(a) := 'ell' ISIN $a.x; The ISIN function is case-sensitive; IISIN ignores the case of both strings.
LIKE ILIKE	The LIKE and ILIKE functions test whether a given string matches the UNIX pattern in a second string. For more information on this function, see the information about the low_file_filter function in the Integrator Toolkit API Reference manual.
INLIST IINLIST	INLIST and IINLIST provide easy ways to check for the occurrence of a string in a list attribute. The following example shows the use of the INLIST function: b(a) := 'Hello' INLIST $a.listattribute; b(a) is TRUE if Hello is contained in the list attribute listattribute for object a. The string to check for may also be an object attribute. The INLIST function is case-sensitive; IINLIST ignores the case of both strings.
INMLIST IINMLIST	The INMLIST and IINMLIST functions provide access to name multivalue table attributes. The following example shows the use of the INMLIST function: b(a) := INMLIST($a.multitable, 'name1', 'value1'); b(a) is TRUE if the multitable named multitable in object a contains the name1 name with a value of value1. The result would be FALSE if name1 did not exist, or if name1 did exist but did not contain value1. The INMLIST function performs case-sensitive string comparisons for the name and value; IINMLIST ignores the case of both strings.
STRCAT	The STRCAT function concatenates strings in the condition processor. For example, STRCAT concatenates $e.DocumentDescription, the string '-Example-', and $o.DocumentDescription. It then compares the resulting string to the string 'Desc1-Example-Desc2'. ATest(o,e) := 'Desc1-Example-Desc2' = STRCAT  ($e.DocumentDescription '-Example-'  $o.DocumentDescription);