Database Reference
In-Depth Information
for $a in
doc(” http : / / WISIRISFuzzySearch / License .xml”)/ agreement ,
$b i n SPARQLQuery ( ” SELECT ? Av a i l a b i l i t y ? ExecutionTime
WHERE
{
?x
<
http ://www.w3. org/2001/sub#avail
>
?Availability .
?x
<
http ://www.w3. org/2001/sub#QoS
>
?ExecutionTime ”
}
, http : / / WISIRISFuzzySearch /QoS. rdf )/ result
RETURN
<
Result
>
<
>
<
Requirement
>{
$a/ requirement
}<
/Requirement
>
<
ServiceTitle
>{
$a/ title
}<
/ServiceTitle
Availability
>{
$b/ availability
}<
/Availability
>
<
ExecutionTime
>{
$b/ ExecutionTime
}<
/ExecutionTime
>
<
/Result
>
Fig. 2.
A Sample query in extended XQuery - generated from the Mashup visual interface [3]
choose between two different views of the XML result: either in tree form (as shown in
Figure 1) or in table form (by choosing the “list view” option in the right panel).
4Con lu ion
We provide a database oriented mashup tool for integrating heterogeneous data sources
with a visual interface which allows for an easy definition of complex data mashups.
This tool can be used as plug-in for web applications to generate powerful and efficient
data integration mashups.
References
1. Dan, A., Johnson, R., Arsanjani, A.: Information as a service: Modeling and realization. In:
Proc. SDSOA 2007. IEEE Computer Society, Los Alamitos (2007)
2. Vancea, A., Grossniklaus, M., Norrie, M.C.: Database-driven web mashups. In: Proc. ICWE,
pp. 162-174. IEEE, Los Alamitos (2008)
3. Ali, M.I., Pichler, R., Truong, H.L., Dustdar, S.: DeXIN: An extensible framework for dis-
tributed XQuery over heterogeneous data sources. In: Filipe, J., Cordeiro, J. (eds.) ICEIS
2009. LNBIP, vol. 24, pp. 172-183. Springer, Heidelberg (2009)
4. Lorenzo, G.D., Hacid, H., Paik, H.-Y., Benatallah, B.: Data integration in mashups. SIGMOD
Record 38(1), 59-66 (2009)
5. Jarrar, M., Dikaiakos, M.D.: Querying the data web: The MashQL approach. IEEE Internet
Computing 14(3), 58-67 (2010)
6. Morbidoni, C., Tummarello, G., Polleres, A.: Who the FOAF knows Alice? a needed
step toward semantic web pipes. In: Proc. SWAP. CEUR Workshop Proceedings, vol. 314.
CEUR-WS.org (2008)
7. Li Xiang, J.F.B., Gennari, J.H.: XGI: A graphical interface for XQuery creation. In: Proc.
AMIA Symposium 2007, pp. 453-457. American Medical Informatics Association (2007)
8. Russell, A., Smart, P.R.: NITELIGHT: A graphical editor for SPARQL queries. In: Interna-
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CEUR-WS.org (2008)
