org.yawlfoundation.yawl.resourcing.codelets

Class XQueryEvaluator

java.lang.Object

org.yawlfoundation.yawl.resourcing.codelets.AbstractCodelet

org.yawlfoundation.yawl.resourcing.codelets.XQueryEvaluator

public class XQueryEvaluator
extends AbstractCodelet

Author:

Michael Adams Creation Date: 30/04/2008

Field Summary

Fields inherited from class org.yawlfoundation.yawl.resourcing.codelets.AbstractCodelet

_description, XSD_NAMESPACE

Constructor Summary

Constructors

Constructor and Description
XQueryEvaluator()

Method Summary

Modifier and Type	Method and Description
Element	execute(Element inData, java.util.List<YParameter> inParams, java.util.List<YParameter> outParams) This method must be implemented to do the work of the codelet.
java.util.List<YParameter>	getRequiredParams() This method is called when an external entity (such as the YAWL editor) requests the list of parameters required by the codelet.

Methods inherited from class org.yawlfoundation.yawl.resourcing.codelets.AbstractCodelet

cancel, getCanonicalClassName, getClassName, getDescription, getInputParameter, getOutputData, getOutputParameter, getParameterValue, getPersist, getRequiredParamsToXML, getValue, getWorkItem, init, resume, setDescription, setInputs, setParameterValue, setPersist, setWorkItem, shutdown, toXML

Methods inherited from class java.lang.Object

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

Constructor Detail

XQueryEvaluator

public XQueryEvaluator()

Method Detail

execute

public Element execute(Element inData,
                       java.util.List<YParameter> inParams,
                       java.util.List<YParameter> outParams)
                throws CodeletExecutionException

Description copied from class: AbstractCodelet

This method must be implemented to do the work of the codelet.

Specified by:

execute in class AbstractCodelet

Parameters:

inData - the work item's input data

inParams - the work item's input parameters

outParams - the work item's output parameters

Returns:

a JDOM Element containing the output data generated by this method

Throws:

CodeletExecutionException - if there's any problem getting the required input data, composing the required output data, or performing the execution.

getRequiredParams

public java.util.List<YParameter> getRequiredParams()

Description copied from class: AbstractCodelet

This method is called when an external entity (such as the YAWL editor) requests the list of parameters required by the codelet. Override to populate the list. Each parameter should include a name, data type and description as a minimum.

Overrides:

getRequiredParams in class AbstractCodelet

Returns:

the List of parameters required by the codelet.