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
 org.w3c.dom.Node[] evaluate(org.w3c.dom.Element wsrpDoc, java.lang.String query)
           
 java.lang.String getDialect()
           
 

Method Detail

getDialect

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

evaluate

public org.w3c.dom.Node[] evaluate(org.w3c.dom.Element wsrpDoc,
                                   java.lang.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