Name
XMLAppendChildren — Modify an XML document by adding new children to the given entity.
Synopsis
XMLAppendChildren
(
|
inout source any , |
| in insertion1 any , | |
| in insertion2 any , | |
| ... , | |
in
insertionN
any
); |
Description
The function modifies the XML document of the given
source XML tree entity by adding new
children to the node specified by the entity. The
source entity should be XML tree entity,
not "persistent XML" entity. The value of
source can be either an element entity or a
root entity; source can not be an attribute
entity or a leaf entity like text or processing instruction.
The values passed in parameters insertion1
... insertionN will be converted into XML
nodes according to rules described in section Composing Document Fragments From DOM
Function Arguments.
After calling the function, parameter
source is still a valid XML entity that
points to the modified node. The value passed as
source can be used in the rest of caller
procedure.
Parameters
source
The XML tree entity whose document should be modified. This document should not be locked (see Changing XML Entities in DOM Style for details).
parameterI
The value to be added as child node of
source .
Return Types
The function returns NULL.
Examples
Example 24.538. XMLAppendChildren in a Virtuoso/PL procedure
The sample procedure contains two calls of
XMLAppendChildren . First call append three
children to a node; second call demonstrates how text nodes can
be merged.
create procedure XMLAppendChildren_demo()
{
declare DESCRIPTION varchar (40);
declare ENTITY, ent any;
result_names (DESCRIPTION, ENTITY);
result ('EXAMPLE1', 'Plain appending of some children');
ent := xpath_eval ('//b', xtree_doc ('<a><b>Hello</b></a>'));
result ('The document to modify', xpath_eval ('/', ent));
result ('The node to be extended', ent);
XMLAppendChildren (ent, xtree_doc ('<comma/>'), ' world', xtree_doc ('<excl/>'));
result ('The changed document', xpath_eval ('/', ent));
result ('The original entity is updated', ent);
result ('EXAMPLE2', 'Appending that cause concatenation of text nodes');
result_names (DESCRIPTION, ENTITY);
ent := xpath_eval ('//b', xtree_doc ('<a><b>Hello</b></a>'));
result ('The document to modify', xpath_eval ('/', ent));
result ('The node to be extended', ent);
XMLAppendChildren (ent, ', ', ' world', '!');
result ('The changed document', xpath_eval ('/', ent));
result ('The original entity is updated', ent);
}
Done. -- 00000 msec.
XMLAppendChildren_demo()
DESCRIPTION ENTITY
VARCHAR VARCHAR
_______________________________________________________________________________
EXAMPLE1 Plain appending of some children
The document to modify <a><b>Hello</b></a>
The node to be extended <b>Hello</b>
The changed document <a><b>Hello<comma /> world<excl /></b></a>
The original entity is updated <b>Hello<comma /> world<excl /></b>
EXAMPLE2 Appending that cause concatenation of text nodes
The document to modify <a><b>Hello</b></a>
The node to be extended <b>Hello</b>
The changed document <a><b>Hello, world!</b></a>
The original entity is updated <b>Hello, world!</b>
10 Rows. -- 00000 msec.