com.marklogic.xcc.examples
Class ModuleRunner

java.lang.Object
  com.marklogic.xcc.examples.ModuleRunner

public class ModuleRunner
extends Object

This is a very simple class that will invoke a named XQuery module on the server and return the result.

Click here for the source code for this class

The main() method looks for two command-line args, a URL for the server ( ContentSourceFactory.newContentSource(java.net.URI)) and theURI of a module to invoke. This URI should be relative to the "Library" path set in the XDBC server configuration for the content server you're connection to (arg #1). This program invokes the named module and then prints the result sequence to stdout, one item per line.

The class has methods the could be used to set request options and to obtain the results as an array of Strings or as a real ResultSequence.

If you want to set external variables for a request, you can call getRequest() to obtain a reference to the internal Request object and set the variable values on it before calling invoke(String).

ToDo: Accept variable names and values on the command line.

Constructor Summary

ModuleRunner(URI serverUri)
Construct an instance that will invoke modules on the server represented by the given URI.

Method Summary

Request	getRequest() Returns the Request object used internally to submit requests.
ResultSequence	invoke(String moduleUri) Invoke the module with the given URI and return the resulting ResultSequence.
String	invokeToSingleString(String moduleUri, String separator)
String[]	invokeToStringArray(String moduleUri)
static void	main(String[] args)
void	setRequestOptions(RequestOptions options) Set (or clear) the RequestOptions instance to associate with submitted queries.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModuleRunner

public ModuleRunner(URI serverUri)
             throws XccConfigException

Construct an instance that will invoke modules on the server represented by the given URI. Note that the URI will not be validated at this time.

Parameters:

serverUri - A URI that specifies a server per ( ContentSourceFactory.newContentSource(java.net.URI)).

Throws:

XccConfigException - If the URI is not a valid XCC server URL.

Method Detail

invoke

public ResultSequence invoke(String moduleUri)
                      throws RequestException

Invoke the module with the given URI and return the resulting ResultSequence.

Parameters:

moduleUri -

Returns:

An instance ResultSequence, possibly with size zero.

Throws:

RequestException - If an unrecoverable error occurs when submitting or evaluating the request.

invokeToStringArray

public String[] invokeToStringArray(String moduleUri)
                             throws RequestException

Throws:

RequestException

invokeToSingleString

public String invokeToSingleString(String moduleUri,
                                   String separator)
                            throws RequestException

Throws:

RequestException

getRequest

public Request getRequest()

Returns the Request object used internally to submit requests. This object can be used to set external variables that will be bound to the query when submitted. You should not set your own RequestOptions object, use setRequestOptions(com.marklogic.xcc.RequestOptions) instead.

Returns:

An instance of Request.

setRequestOptions

public void setRequestOptions(RequestOptions options)

Set (or clear) the RequestOptions instance to associate with submitted queries.

Parameters:

options - An instance of RequestOptions or null.

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception