Network Deployment (Distributed operating systems), v8.0 > Develop and deploying applications > XML applications
Use the XML API to perform operations
We can use the IBM XML API to perform operations that use the new and updated W3C XML standards.
Limitations of the processor:
- When using the namespace axis, only the namespaces declared on the current node are accessible through the namespace axis (rather
than all of the namespaces that are in scope for the current node)
if the input document supplied is a StreamSource, SAXSource, or StAXSource.
- When evaluating some string functions and operations, the processor might not handle Unicode characters with code points above #xFFFF correctly; it might incorrectly treat the surrogate pair in the UTF-16 encoding of the character as two separate characters.
-
Whitespace text nodes might not be stripped
from elements that have complex type with element-only content. When matching children of such an element, use a sequence type that matches
only elements such as element() to avoid processing these text nodes.
- The column number reported in an error message relating to an operator expression might not point to the operand
that is actually in error. Consider both operands when determining
the cause of the error.
- Using a variable declared in an XQuery typeswitch
clause as an operand in an arithmetic expression might cause an error.
When using the variable declared in an XQuery typeswitch clause in an arithmetic expression such as in the following example, the processor might incorrectly report a type error.
typeswitch (.) case $a as xs:integer return ($a + 1) default return 17
To work around this limitation, cast the variable to the expected type. For example:
typeswitch (.) case $a as xs:integer return (($a cast as xs:integer) + 1) default return 17
Procedure
- Perform basic operations.
- Precompile.
- Use resolvers.
- Use external variables and functions.
- Create items and sequences.
- Work with collations.
- Execute using the command-line tools.
- Use a message handler and manage exceptions.
Related
Performing basic operations
Precompile
Use resolvers
Use external variables and functions
Create items and sequences
Work with collations
Executing using the command-line tools
Use a message handler and managing exceptions