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The BEA/XQRL Streaming XQuery Processor [chapter]

Daniela Florescu, Chris Hillery, Donald Kossmann, Paul Lucas, Fabio Riccardi, Till Westmann, Michael J. Carey, Arvind Sundararajan, Geetika Agrawal
2003 Proceedings 2003 VLDB Conference  
., for transforming XML data streams, and it is a central component of the 8.1 release of BEA's WebLogic Integration (WLI) product.  ...  This XQuery engine is fully compliant with the August 2002 draft of the W3C XML Query Language specification.  ...  While XML-to-XML transformations are the most common form of data transformations expected, WLI 8.1 actually supports a much broader range of transformations using the data mapping tool and the BEA streaming  ... 
doi:10.1016/b978-012722442-8/50093-8 dblp:conf/vldb/FlorescuHKLRWCSA03 fatcat:afleg7dkxbdijbvljnvc4qn5ha

Binary XML storage and query processing in Oracle 11g

Ning Zhang, Nipun Agarwal, Sivasankaran Chandrasekar, Sam Idicula, Vijay Medi, Sabina Petride, Balasubramanyam Sthanikam
2009 Proceedings of the VLDB Endowment  
We propose a lightweight navigational index on top of the storage and an NFA-based navigational algorithm to provide efficient streaming processing.  ...  However, both storage formats have intrinsic limitations-XML/CLOB has unacceptable query and update performance, and XML/OR requires XML schema.  ...  While these rewrites are particular amenable to lookups in XML index whose key are simple path IDs, the latter is also desirable for streaming evaluation using search-based decoder.  ... 
doi:10.14778/1687553.1687561 fatcat:ascxbhkojnhflauewvlmeetqf4

The BEA streaming XQuery processor

Daniela Florescu, Chris Hillery, Donald Kossmann, Paul Lucas, Fabio Riccardi, Till Westmann, MichaelJ. Carey, Arvind Sundararajan
2004 The VLDB journal  
., for transforming XML data streams. The engine is a central component of the 8.1 release of BEA's WebLogic Integration (WLI) product.  ...  This paper describes the design, implementation, and performance characteristics of a commercial XQuery processing engine, the BEA streaming XQuery processor.  ...  Transformation developers work in terms of a graphical "map view" that shows the schemas of a transformation's XML inputs on the left-hand side and the schema of the desired XML output on the right-hand  ... 
doi:10.1007/s00778-004-0137-1 fatcat:jsgovghly5bxblv5htxtgvvc3y

Schema-based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams [chapter]

Christoph Koch, Stefanie Scherzinger, Nicole Schweikardt, Bernhard Stegmaier
2004 Proceedings 2004 VLDB Conference  
Purely event-based queries of this language can be executed on streaming XML data in a very direct way.  ...  We then develop an algorithm that allows to efficiently rewrite XQueries into the event-based FluX language.  ...  A Normal Form for XQuery − An XQuery − expression is transformed into normal form by rewriting (subexpressions of) it using the rules in Figure 1 until no further changes are possible.  ... 
doi:10.1016/b978-012088469-8.50023-1 dblp:conf/vldb/KochSSS04 fatcat:gtfi234ckvfq7arxhgtrqwj5bu

Schema-based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams [chapter]

C KOCH, S SCHERZINGER, N SCHWEIKARDT, B STEGMAIER
2004 Proceedings 2004 VLDB Conference  
Purely event-based queries of this language can be executed on streaming XML data in a very direct way.  ...  We then develop an algorithm that allows to efficiently rewrite XQueries into the event-based FluX language.  ...  A Normal Form for XQuery − An XQuery − expression is transformed into normal form by rewriting (subexpressions of) it using the rules in Figure 1 until no further changes are possible.  ... 
doi:10.1016/b978-012088469-8/50023-1 fatcat:wdivtmngi5ayxlph6byju52csi

VERT: A Semantic Approach for Content Search and Content Extraction in XML Query Processing [chapter]

Huayu Wu, Tok Wang Ling, Bo Chen
2007 Lecture Notes in Computer Science  
Processing a twig pattern query in XML document includes structural search and content search. Most existing algorithms only focus on structural search.  ...  We use term property for such element or attribute, and term object for the element described by property.  ...  First we analyze and rewrite the query. During this part, for each leaf node which is a value content, a new stream for its parent property node is constructed using the table of that property.  ... 
doi:10.1007/978-3-540-75563-0_36 fatcat:3fzl6yi3p5c7zcp63t3ioqtumy

Schema-based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams [article]

Christoph Koch, Stefanie Scherzinger, Nicole Schweikardt, Bernhard Stegmaier
2004 arXiv   pre-print
Purely event-based queries of this language can be executed on streaming XML data in a very direct way.  ...  We then develop an algorithm that allows to efficiently rewrite XQueries into the event-based FluX language.  ...  A Normal Form for XQuery − An XQuery − expression is transformed into normal form by rewriting (subexpressions of) it using the rules in Figure 1 until no further changes are possible.  ... 
arXiv:cs/0406016v1 fatcat:uy6pu6mjo5hhjlsr7tgbyaszjm

Program Transformation with Stratego/XT [chapter]

Eelco Visser
2004 Lecture Notes in Computer Science  
Stratego is based on the paradigm of rewriting under the control of programmable rewriting strategies.  ...  The framework consists of the transformation language Stratego and the XT collection of transformation tools.  ...  For example, the definition read-from-stream = ?Stream(stream) ; prim("SSL_read_term_from_stream", stream) introduces an alias for a primitive reading a term from an input stream.  ... 
doi:10.1007/978-3-540-25935-0_13 fatcat:5d55spl7hvgrbcy2uai7ccbm44

Tree Transducers and Formal Methods (Dagstuhl Seminar 13192)

Sebastian Maneth, Helmut Seidl, Marc Herbstritt
2013 Dagstuhl Reports  
Implementability under Resource Restrictions: Which transducer models can be executed by devices with bounded resources, e.g., for processing XML streams?  ...  The 33 participants from 13 countries (Australia, and the US) had been invited by the organizer Sebastian Maneth to give particular survey talks about their recent research on applications and theory of  ...  Streaming XML transformation using term rewriting. In Programming Language Technologies for XML (PLAN-X), 2007b.  ... 
doi:10.4230/dagrep.3.5.1 dblp:journals/dagstuhl-reports/ManethS13 fatcat:xxotqpzgnzc3zdlkk4zxsdot5i

Query Rewrite for XML in Oracle XML DB [chapter]

Muralidhar Krishnaprasad, Zhen Hua Liu, Anand Manikutty, James W. Warner, Vikas Arora, Susan Kotsovolos
2004 Proceedings 2004 VLDB Conference  
In this paper, we present the 'XML Query Rewrite' technique used in Oracle XML DB.  ...  Furthermore, this rewrite technique lays out a foundation to enable rewrite of XQuery [1] over XML.  ...  We would especially like to thank Ravi Murthy and Muralidhar Subramanian, who have given us valuable and insightful ideas for query rewrite.  ... 
doi:10.1016/b978-012088469-8.50098-x dblp:conf/vldb/KrishnaprasadLMWAK04 fatcat:icxkgdbd35fcfglxrddah4f6ii

Query Rewrite for XML in Oracle XML DB [chapter]

M KRISHNAPRASAD, Z LIU, A MANIKUTTY, J WARNER, V ARORA, S KOTSOVOLOS
2004 Proceedings 2004 VLDB Conference  
In this paper, we present the 'XML Query Rewrite' technique used in Oracle XML DB.  ...  Furthermore, this rewrite technique lays out a foundation to enable rewrite of XQuery [1] over XML.  ...  We would especially like to thank Ravi Murthy and Muralidhar Subramanian, who have given us valuable and insightful ideas for query rewrite.  ... 
doi:10.1016/b978-012088469-8/50098-x fatcat:xh2kzi2hvbh7xpk6azriktkcjm

XML stream transformer generation through program composition and dependency analysis

Susumu Nishimura, Keisuke Nakano
2005 Science of Computer Programming  
Though being efficient in memory-use, stream transformation requires stateful programming, which is error-prone and hard to manage.  ...  This paper proposes a scheme for generating XML stream transformers.  ...  this, ✲ ❄ ✲ ✻ XML stream XML stream XML tree XML tree T (tree transformer) Parse Unparse T (stream transformer) Fig. 1. A diagram for XML transformation.  ... 
doi:10.1016/j.scico.2004.07.001 fatcat:67safidghre4jpb25zte6p3g4a

Querying xml with update syntax

Wenfei Fan, Gao Cong, Philip Bohannon
2007 Proceedings of the 2007 ACM SIGMOD international conference on Management of data - SIGMOD '07  
This paper investigates a class of transform queries proposed by XQuery Update [6] . A transform query is defined in terms of XML update syntax.  ...  parsing, to evaluate transform queries on large XML documents that are difficult to handle by existing XQuery engines, and (c) an algorithm to rewrite the composition of user queries and transform queries  ...  Example transform queries can be found in Example 1.1. To give the semantics of transform queries we first review XPath and XML updates defined in terms of XPath. XPath.  ... 
doi:10.1145/1247480.1247515 dblp:conf/sigmod/FanCB07 fatcat:gzvfcga64jhzppdzygnovhhxlq

Concrete syntax for objects

Martin Bravenboer, Eelco Visser
2004 SIGPLAN notices  
We illustrate the method with applications in three domains: code generation, XML generation, and user-interface construction.  ...  The method is supported by proven and available technology, i.e. the syntax definition formalism SDF and the program transformation language and toolset Stratego/XT.  ...  Niels Janssen, Rob Vermaas and Jonne van Wijngaarden contributed to the development of XML support. SDF is maintained and further developed at CWI by Mark van den Brand and Jurgen Vinju.  ... 
doi:10.1145/1035292.1029007 fatcat:fj2u3de6afgclh3ngyenwtjbz4

Concrete syntax for objects

Martin Bravenboer, Eelco Visser
2004 Proceedings of the 19th annual ACM SIGPLAN Conference on Object-oriented programming, systems, languages, and applications - OOPSLA '04  
We illustrate the method with applications in three domains: code generation, XML generation, and user-interface construction.  ...  The method is supported by proven and available technology, i.e. the syntax definition formalism SDF and the program transformation language and toolset Stratego/XT.  ...  Niels Janssen, Rob Vermaas and Jonne van Wijngaarden contributed to the development of XML support. SDF is maintained and further developed at CWI by Mark van den Brand and Jurgen Vinju.  ... 
doi:10.1145/1028976.1029007 dblp:conf/oopsla/BravenboerV04 fatcat:47yl6x4vkndvtnfsve5lxkhgvm
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