Andere Kunden interessierten sich auch für
![Event-based Middleware for Pervasive Computing]( "Event-based Middleware for Pervasive Computing")
Event-based Middleware for Pervasive Computing48,99 €![AUI Thesis Search Engine - WordNet and NLP document based indexing]( "AUI Thesis Search Engine - WordNet and NLP document based indexing")
AUI Thesis Search Engine - WordNet and NLP document based indexing17,99 €![Knowledge Representation and Reasoning using Temporal Relations]( "Knowledge Representation and Reasoning using Temporal Relations")
Knowledge Representation and Reasoning using Temporal Relations46,99 €![Enhancing Information Systems with Event-Handling]( "Enhancing Information Systems with Event-Handling")
Enhancing Information Systems with Event-Handling59,00 €![Amharic-English Bilingual Search Engine]( "Amharic-English Bilingual Search Engine")
Amharic-English Bilingual Search Engine42,99 €![Collecting and Managing Real-life Event Information from Social Media]( "Collecting and Managing Real-life Event Information from Social Media")
Collecting and Managing Real-life Event Information from Social Media46,99 €![Schema Matching and Mapping-based Data Integration]( "Schema Matching and Mapping-based Data Integration")
Schema Matching and Mapping-based Data Integration48,99 €
In order to address the lack of XML support in Complex Event Processing (CEP) systems, we propose an approach for XML integration into a CEP engine we call EQL/XA (XML-aware event query language). As event query languages are generally SQL-based, our approach is based on the independent part of the SQL standard - XML-related Specifications (SQL/XML). EQL/XA consists of several concepts that together offer significant XML support. We introduce a data type for representing XML, an XQuery function that is able to query and construct XML data, an aggregate function that concatenates a group of XML values into a single value and last but not least, we have proposed two stream-to-stream operators that together are capable of flattening XML events into events containing only atomic EQL data types. Thus, we have significantly enhanced the expressiveness of pure EQL.