4D Doc Center : XML

4D v13.4

XML

Constant	Type	Value	Comment
Copy XML Data Source	Longint	1	4D keeps a copy of the DOM tree with the picture, which means the picture can be saved in a picture field of the database and then redisplayed or exported at any time.
DOCTYPE Name	Longint	3	Name of the root element as defined in the DOCTYPE marker
Document URI	Longint	6	URI of the DTD
Encoding	Longint	4	Encoding used (UTF-8, ISO...)
Get XML Data Source	Longint	0	4D only reads the XML data source; it is not kept with the picture. This noticeably increases command execution speed; however, because the DOM tree is not kept, it is not possible to store or export the picture.
Own XML Data Source	Longint	2	4D exports the DOM tree with the picture. The picture can be stored or exported and command execution is fast. However, the elementRef XML reference can then no longer be used by other 4D commands. This is the default mode for exporting when the exportType parameter is omitted.
PUBLIC ID	Longint	1	Public identifier (FPI) of the DTD to which the document conforms (if the DOCTYPE xxx PUBLIC tag is present).
SYSTEM ID	Longint	2	System identifier
Version	Longint	5	Accepted XML version
XML Base64	Longint	1
XML Binary encoding	Longint	5	Specifies the way binary data will be converted. Possible values: XML Base64 (default value): binary data are simply converted to Base64 XML Data URI scheme: binary data are converted to Base64 and the "data:;base64" header is added. This format mainly allows a browser to automatically decode a picture, and is also required for the insertion of pictures. For more information, see http://en.wikipedia.org/wiki/Data_URI_scheme.
XML CDATA	Longint	7
XML Comment	Longint	2
XML Convert to PNG	Longint	1
XML DATA	Longint	6
XML Data URI scheme	Longint	2
XML Date encoding	Longint	2	Specifies the way 4D dates will be converted. For example, !01/01/2003! in the Paris time zone. Possible values: XML ISO (default value): use of the format xs:datetime without indication of time zone. Result: "2003-01-01". The time part, if it is present in the 4D value (via SQL) is lost. XML Local: use of the format xs:date with indication of time zone. Result: "2003-01-01 +01:00". The time part, if it is present in the 4D value (via SQL) is lost. XML Datetime local: use of the format xs:dateTime (ISO 8601). Indication of time zone. This format allows the time part to be kept, if it is present in the 4D value (via SQL). Result: "<Date>2003-01-01T00:00:00 +01:00</Date>". XML UTC: use of the format xs:date. Result: "2003-01-01Z". The time part, if it is present in the 4D value (via SQL) is lost. XML Datetime UTC: use of the format xs:dateTime (ISO 8601). This format allows the time part to be kept, if it is present in the 4D value (via SQL). Result: "<Date>2003-01-01T00:00:00Z</Date>".
XML Datetime local	Longint	3
XML Datetime local absolute	Longint	1
XML Datetime UTC	Longint	5
XML DOCTYPE	Longint	10
XML Duration	Longint	2
XML ELEMENT	Longint	11
XML End Document	Longint	9
XML End Element	Longint	5
XML Entity	Longint	8
XML Indentation	Longint	4	Specifies the indentation of the XML document. Possible values: XML With indentation (default value): the document is indented. XML No indentation: the document is not indented; its contents are placed in a single line.
XML ISO	Longint	1
XML Local	Longint	2
XML Native codec	Longint	2
XML No indentation	Longint	2
XML Picture encoding	Longint	6	Specifies the way pictures must be converted (before encoding in Base64). Possible values: XML Convert to PNG (default value): pictures are converted to PNG before being encoded in Base64. XML Native codec: pictures are converted in their first native storage CODEC before being encoded in Base64. You must use these options to encode SVG pictures (see example for the XML SET OPTIONS command).
XML Processing Instruction	Longint	3
XML Raw data	Longint	2
XML Seconds	Longint	4
XML Start Document	Longint	1
XML Start Element	Longint	4
XML String encoding	Longint	1	Specifies the way 4D strings are converted to element values. It does not concern the conversion to attributes for which XML imposes the use of escape characters. Possible values: XML With escaping (default value): conversion of 4D strings to XML element values with replacement of characters. The Text type data are automatically parsed so that forbidden characters (<&>’) are replaced by XML entities (&<> '"). XML Raw data: 4D strings are sent as raw data; 4D does not carry out encoding or parsing. 4D values are converted if possible to XML fragments and inserted as a child of the target element. If a value cannot be considered as an XML fragment, it is inserted as raw data into a new CDATA node.
XML Time encoding	Longint	3	Specifies the way 4D times are converted. For example, ?02/00/46? (Paris time). The encoding differs depending on whether you want to express a time or a duration. Possible values for times: XML Datetime UTC: time expressed in UTC (Universal Time Coordinated). Note that conversion to UTC is automatic. Result: "<Duration>0000-00-00T01:00:46Z</Duration>". XML Datetime local: time expressed with the time difference of the machine of the 4D engine. Result: "<Duration>0000-00-00T02:00:46+01:00</Duration>". XML Datetime local absolute (default value): time expressed without indication of time zone. No modification of the value. Result: "<Duration>0000-00-00T02:00:46</Duration>". Possible values for durations: XML Seconds: number of seconds since midnight; no modification of the value since it expresses a duration. Result: "<Duration>7246</Duration>". XML Duration: duration expressed in compliance with XML Schema Part 2: Datatypes Second Edition. No modification of the value since it expresses a duration. Result: "<Duration>PT02H00M46S</Duration>".
XML UTC	Longint	4
XML With escaping	Longint	1
XML With indentation	Longint	1