: Class XQueryContext

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oracle.xquery
Class XQueryContext

java.lang.Object
  |
  +--oracle.xquery.XQueryContext

public class XQueryContext
extends java.lang.Object

XQuerycontext - This class provides the context for executing XQueries
This class can be used to create a context from which queries can be run. For instance, we can execute a bunch of function registeration calls and then run a XQuery over it.
This is the main class to be called for executing XQUery

 Example
 
  XQueryContext ctx = new XQueryContext();

   try
   {
     // create a string from the file
     Reader strm = new FileReader("exmpl1.xml");
 
     // prepare the query
     PreparedXQuery xq = ctx.prepareXQuery(strm);
 
     // get a resultset
     XQueryResultSet rset = xq.executeQuery(printPlan);
 
     while (rset.next())
     {
       XMLNode node = rset.getNode();  // get the result nodes
       System.out.println(" NODE "+ node.getNodeName());
       node.print(System.out);
     }
   }
   catch (Exception e)
   {
      // do something.. 
   }

Constructor Summary

XQueryContext()
          Constructor for the XQueryContext

XQueryContext(java.sql.Connection conn)
          Constructor for the XQueryContext

XQueryContext(java.sql.Connection conn, java.lang.String baseurl)
          Constructor for the XQueryContext

XQueryContext(java.lang.String baseurl)
          Constructor for the XQueryContext

XQueryContext(XQMesg msg)
          Constructor for the XQueryContext

Method Summary

java.lang.String getBaseUrl()
          Get the baseurl registered with the context

java.lang.String getXQueryStrFromXQX(java.lang.String xqueryx, PreparedXQuery prepXquery)


static void main(java.lang.String[] argv)


PreparedXQuery prepareXQuery(java.io.Reader xquery)
          Prepare a xquery for execution

PreparedXQuery prepareXQuery(java.lang.String xquery)
          Prepare a xquery for execution

PreparedXQuery prepareXQueryX(java.io.Reader xqueryx)
          Prepare a xquery for execution (XQueryX)

PreparedXQuery prepareXQueryX(java.lang.String xqueryx)
          Prepare a xquery for execution (XQueryX)

void registerDatasource(java.lang.String dsname, XMLDataSource dsimpl)
          Register datasource

void registerFunction(java.lang.String function)
          Register a function for later evaluation

void setBaseUrl(java.lang.String baseurl)
          Set the baseurl for the context

void setConnectionDesc(java.lang.String descname, java.sql.Connection conn)
          Set connection descriptor in the case when multiple connections are required.

void setDefaultConnection(java.sql.Connection conn)
          Sets the default SQL connection

void setQueryTransform(oracle.xml.parser.v2.XSLStylesheet xslt)
          Set a XSL-T transform on the XQueryX before execution This can be used for enforcing security (VPD) on the query or for auditing purposes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail