org.apache.muse.ws.resource.properties.query
Interface QueryExpression

All Known Implementing Classes:
XPathQueryExpression

public interface QueryExpression

QueryExpression describes components that can evaluate an XML document based on a specific query language. An example of such a query language is XPath 1.0. Evaluation of a query expression on an XML document should result in a set of DOM Nodes no matter what language is used.

Author:
Dan Jemiolo (danj)

Method Summary
 Node[] evaluate(Element wsrpDoc, String query)
           
 String getDialect()
           
 

Method Detail

getDialect

String getDialect()
Returns:
The URI that defines the query language for this expression.

evaluate

Node[] evaluate(Element wsrpDoc,
                String query)
                throws InvalidQueryExpressionFault,
                       QueryEvaluationErrorFault
Parameters:
wsrpDoc - A resource's WSRP document.
query - A query expression in the language described by getDialect().
Returns:
An array of nodes from the given document that match the query expression. The array may be empty.
Throws:
InvalidQueryExpressionFault
QueryEvaluationErrorFault


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