WSQuery: XQuery for web services integration

Authors:
Zhimao Guo;Xiaoling Wang;Aoying Zhou
Affiliations:
Dept. of Computer Science and Engineering, Fudan University, China;Dept. of Computer Science and Engineering, Fudan University, China;Dept. of Computer Science and Engineering, Fudan University, China
Venue:
DASFAA'05 Proceedings of the 10th international conference on Database Systems for Advanced Applications
Year:
2005

Citing 10
Cited 0

Optimizing compilers for modern architectures: a dependence-based approach

Optimizing compilers for modern architectures: a dependence-based approach
XL: a platform for web services

Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Capturing both types and constraints in data integration

Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Exchanging intensional XML data

Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Dynamic XML documents with distribution and replication

Proceedings of the 2003 ACM SIGMOD international conference on Management of data
A Web-Services Architecture for Efficient XML Data Exchange

ICDE '04 Proceedings of the 20th International Conference on Data Engineering
XQuery at your web service

Proceedings of the 13th international conference on World Wide Web
Lazy query evaluation for Active XML

SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
DTD-directed publishing with attribute translation grammars

VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Active XML: peer-to-peer data and web services integration

VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases

Quantified Score

Hi-index	0.00

Visualization

Abstract

Web services integration is one of key issues in many B2B applications. Yet, current approaches to this problem tend to use a general-purpose programming language, thus incur type mismatches between the type system of XML schema and the object-oriented type system. In this paper, we present a uniform method for integrating Web services. We propose an extension of XQuery, referred to as WSQuery, which can contain Web service calls. We first present the conceptual evaluation strategy of WSQuery programs. Then, for speeding up the evaluation, we propose to schedule Web service calls to exploit parallelism. We carry out dependency analysis to determine dependency relations among Web service calls. The for loops, if branches and unknown parameters pose particular challenges for dependency analysis and scheduling. We use unfolding techniques to deal with them.