Finder Methods - Does xmlbeans support this?

Question

Finder Methods - Does xmlbeans support this?
Hi,
Q1 - Is there currently a mechanism via generated xmlbeans java classes to
find specific data required (from within the java generated methods
provided). For example assuming in the following xml (see below) if one has
already loaded the <main-item> via xmlbean generated java classes, but then
wishes to find the appropriate configs/config within this section of the xml
(i.e. the main-item entry "config" is a reference to one of the "config"
items under "configs") , does XMLBeans currently support this? That is, it
would be nice to have finder methods on the generated java classes so once
you have a <configs> java instance you can issue a finder method for a
<config> item and pass the <config-name> in. For example:
What is available: MainXML.getConfigs().getConfig(23) -> i.e. put in
index,
However what about: MainXML.getConfigs().findConfig ("mainConfig");
Q2 - If there is no support for this within the generated java classes what
is recommended? Via xpath? Have to write your own short java finder classes
which iterate through until the item is found?
ATTACHMENT - XML REFERED TO
============================
< MainXML xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="xxx.xsd">
<configs>
<config>
<config-name>mainConfig</config-name>
<report_width>1</report_width>
</config>
<config>
<config-name>testConfig</config-name>
<report_width>0</report_width>
</config>
</configs>
<main-config>
<main-item>
<itemName>TestItem</itemName>
<config>mainConfig</config>
</main-item>
</main-config>
</sns_config>
Cheers
Greg

Answer 1

thanks Steve
"Steve Traut" <[email protected]> wrote in message
news:[email protected]...
Hello Greg,
To my knowledge, the reference-specific kind of function you're asking for
isn't supported. But if you're writing code on WebLogic Platform 8.1, you
can use XPath/XQuery to accomplish this. Incidentally, your XML belowopens
with MainXML and closes with sns_config, but I'll assume it's MainXML.
To retrieve a main-config/main-item/config element when you know the
config-name element's value, you could use the following expression (where
the mainXml variable is a MainXMLDocument instance):
String queryExpression = "$this/MainXML/configs/config[config-name=
'mainConfig']";
ConfigType[] configs =
(ConfigType[])mainXml.selectPath(queryExpression);
The configs array would contain one item in this case. The second linewould
throw a class cast exception if no results were returned.
Note that XPath predicates aren't supported in XMLBeans outside thecontext
of WebLogic, but simple path expressions are.
Steve
"greg" <[email protected]> wrote in message news:1074728633.92236@ns1...
Finder Methods - Does xmlbeans support this?
Hi,
Q1 - Is there currently a mechanism via generated xmlbeans java classes
to
find specific data required (from within the java generated methods
provided). For example assuming in the following xml (see below) if onehas
already loaded the <main-item> via xmlbean generated java classes, butthen
wishes to find the appropriate configs/config within this section of thexml
(i.e. the main-item entry "config" is a reference to one of the
"config"
items under "configs") , does XMLBeans currently support this? That is,it
would be nice to have finder methods on the generated java classes so
once
you have a <configs> java instance you can issue a finder method for a
<config> item and pass the <config-name> in. For example:
What is available: MainXML.getConfigs().getConfig(23) -> i.e. putin
index,
However what about: MainXML.getConfigs().findConfig ("mainConfig");
Q2 - If there is no support for this within the generated java classeswhat
is recommended? Via xpath? Have to write your own short java finderclasses
which iterate through until the item is found?
ATTACHMENT - XML REFERED TO
============================
< MainXML xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="xxx.xsd">
<configs>
<config>
<config-name>mainConfig</config-name>
<report_width>1</report_width>
</config>
<config>
<config-name>testConfig</config-name>
<report_width>0</report_width>
</config>
</configs>
<main-config>
<main-item>
<itemName>TestItem</itemName>
<config>mainConfig</config>
</main-item>
</main-config>
</sns_config>
Cheers
Greg