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http://issues.apache.org/jira/browse/TUSCANY-675?page=comments#action_12431586
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Frank Budinsky commented on TUSCANY-675:
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This is a well known, but unfortunate "feature" of SDO 2.01. The "." character
is a reserved character in SDO paths, so you can't access properties with names
that include "." in a path expression. For now, you would need to do something
like this instead:
DataObject comp = scaObj.getDataObject("component[1]");
DataObject impJava =
comp.getDataObject(comp.getInstanceProperty("implentation.java"));
Another possiblity is that we could add alias names for properties with "." in
their name. For example "implementation_java". Then clients could access it
like this:
DataObject impJava = scaObj.getDataObject("component[1]/implementation_java");
Hopefully the SDO 2.1 spec , which is attempting to fix some of the problems in
the 2.01 spec, will provide a good "standard" way to handle this relatively
common problem when working with XSD based models.
> XPATH doesnt support dots in names (treats them as indices) in Java
> Implementation
> ----------------------------------------------------------------------------------
>
> Key: TUSCANY-675
> URL: http://issues.apache.org/jira/browse/TUSCANY-675
> Project: Tuscany
> Issue Type: Bug
> Components: Java SDO Implementation
> Affects Versions: Java-M2
> Environment: All
> Reporter: Hasan Muhammad
>
> When you try to do the following:
> DataObject impJava = scaObj.getDataObject("component[1]/implementation.java");
> It results in the following exception:
> java.lang.NumberFormatException: For input string: "java"
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:63)
> at java.lang.Integer.parseInt(Integer.java:481)
> at java.lang.Integer.parseInt(Integer.java:531)
> at
> org.apache.tuscany.sdo.util.DataObjectUtil$Accessor.process(DataObjectUtil.java:2097)
> at
> org.apache.tuscany.sdo.util.DataObjectUtil$Accessor.init(DataObjectUtil.java:1918)
> at
> org.apache.tuscany.sdo.util.DataObjectUtil$Accessor.create(DataObjectUtil.java:1838)
> at
> org.apache.tuscany.sdo.util.DataObjectUtil.get(DataObjectUtil.java:738)
> at
> org.apache.tuscany.sdo.impl.DataObjectImpl.get(DataObjectImpl.java:213)
> at
> org.apache.tuscany.sdo.impl.DataObjectImpl.getDataObject(DataObjectImpl.java:323)
> at
> com.ibm.ws.sca2.module.loader.test.SDOLoaderTest.main(SDOLoaderTest.java:60)
> It is clear that it is trying to treat the string after "." as an index..
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