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XPath supported syntax
XPath notations used in EBX.Platform must conform to the abbreviated syntax of XML Path Language (XPath) Version 1.0, with some restrictions. This document details, which abbreviated syntax is actually supported.
The XPath general expression is: localisation[predicate]
Examples
Absolute path localisation:
/library/books/
Relative path localisations :
./Author
../Title
Root and descendant path localisations:
//books
Table path localisations with predicate :
../../books/[author_id = 0101 and (publisher = 'harmattan')]
/library/books/[not(publisher != 'dumesnil')]
Complex predicates :
starts-with(col3,'xxx') and ends-with(col3,'yyy')
contains(col3 ,'xxx') and ( not(col1=100) and date-greater-than(col2,'2007-12-30')
XPath expression syntax specification
| Expression | Composition | Note/example |
|
<container path>[predicate] |
/books[title='xxx'] |
<container path> |
<absolute path> | <relative path> |
|
<absolute path> |
/a/b | //b |
//books |
<relative path> |
../../b | ./b | b |
../../books |
Predicate syntax specification
| Expression | Composition | Note/example |
| <predicate> | Ex: A and ( B or not(C) ) A,B,C: <atomic expression> |
Composition of: logical operators braces, not() and atomic expressions. |
| <atomic expression> | <path><comparator><criterion> | method(<path>,<criterion>) |
royalty = 24.5 starts-with(title, 'Johnat') booleanValue = true |
| <path> | <relative path> |
Relative to the table wich contains it. ./authors title |
| <comparator> | <boolean comparator> | <numeric comparator> | <string comparator> |
|
| <boolean comparator> | = , != | |
| <numeric comparator> | = , != , <, >, <=, >= | |
| <string comparator> | = | |
| <method> | <date method > | <string method > | |
| <date, time & dateTime method > | date-less-than, date-equal, date-greater-than | |
| <string method > | matches, starts-with, ends-with, contains | |
| <criterion> | <boolean criterion> | <numeric criterion> | <string criterion> | <date criterion> | <time criterion> | <dateTime criterion> | |
| <boolean criterion> | true , false | |
| <numeric criterion> | integer or decimal | -4.6 |
| <string criterion> | Quoted character string | 'azerty' |
| <date criterion> | Quoted formated: 'yyyy-MM-dd' | '2007-12-31' |
| <time criterion> | Quoted formated: 'HH:mm:ss' or 'HH:mm:ss.SSS' | '11:55:00' |
| <dateTime criterion> | Quoted formated: 'yyyy-MM-ddTHH:mm:ss' or 'yyyy-MM-ddTHH:mm:ss.SSS' | '2007-12-31T11:55:00' |
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