Package de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl

Class NESTWorkflowHandler

java.lang.Object

de.uni_trier.wi2.procake.utils.composition.FactoryObjectImplementation

de.uni_trier.wi2.procake.data.io.IOImpl

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.AbstractXMLHandler

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTGraphHandler

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTAbstractWorkflowHandler

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTWorkflowHandler

All Implemented Interfaces:

NESTGraphTags, IO, ContentHandler

public class NESTWorkflowHandler
extends NESTAbstractWorkflowHandler
implements NESTGraphTags

Effective SAX-Handler-class. Is able to parse the content of NESTWorkflow-XML-files.

Author:

Alexander Stromer

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HANDLER_NAME	Constant HANDLERNAME="NESTWorkflowHandler"

Fields inherited from class de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTGraphHandler

currentGraph, currentGraphItem, model, nestInstanceStarted, subHandlerObject

Fields inherited from interface de.uni_trier.wi2.procake.utils.io.IO

DEFAULT_ENCODING, LOG_FILE_NOT_FOUND, LOG_IO_EXCEPTION, LOG_READER_NOT_FOUND, LOG_SAX_EXCEPTION, LOG_UNKNOWN_PARAMETER, LOG_WRONG_PARAMATER_TYPE, RESOURCE_XML

Fields inherited from interface de.uni_trier.wi2.procake.data.io.xml.NESTGraphTags

ATT_CLASS, ATT_ID, ATT_POST, ATT_PRE, ATT_REF_ID, LOG_VALUE_FROM_ATTRIBUTE_IS_NULL, PREFIX_NEST, SCHEMA_LOCATION_NEST, TAG_EDGE, TAG_EDGES, TAG_NESTGRAPH, TAG_NESTSEQUENTIALWORKFLOW, TAG_NESTWORKFLOW, TAG_NODE, TAG_NODES, URI_NEST, VAL_EDGE, VAL_NODE

Constructor Summary

Constructors

Constructor	Description
NESTWorkflowHandler()	Constructor for NESTWorkflowHandler.

Method Summary

Modifier and Type	Method	Description
IO	copy()	overwritten copy-method from Object; use it to copy a complete operator
void	endElement(String uri, String localName, String qName)
String	getName()	Each io component must have a name that is used in IOFactory.newIO(String).
Object	getObject()	After parsing the document, this method must be called to get the Object.
boolean	isHandlerFor(Class value)	Checks if the io component is capable to perform the operation for objects of this class.
boolean	isHandlerFor(String uri, String localName, String qName, Attributes attributes)	Queries the handler for possible handling of the given (SAX-)parameters
void	startElement(String uri, String localName, String qName, Attributes attributes)
protected void	startNodeElement(Attributes attributes)	startNodeElement.

Methods inherited from class de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTAbstractWorkflowHandler

startEdgeElement

Methods inherited from class de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.NESTGraphHandler

createEdge, endElementProperty, endSemanticDescriptionElement, startElementProperty, subHandlerFinishedWithObject

Methods inherited from class de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.AbstractXMLHandler

callSubHandlerEnd, callSubHandlerStart, characters, endDocument, endPrefixMapping, getCharacterString, getDocumentLocator, ignorableWhitespace, initiateSubHandler, notifyParentHandler, processingInstruction, setDocumentLocator, setParentHandler, skippedEntity, startDocument, startPrefixMapping

Methods inherited from class de.uni_trier.wi2.procake.data.io.IOImpl

getFamily, getParameters, postInit, preInit, setFamily

Methods inherited from class de.uni_trier.wi2.procake.utils.composition.FactoryObjectImplementation

getParameter, initParametersBasedOn

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

declaration

Methods inherited from interface de.uni_trier.wi2.procake.utils.io.IO

getFamily, setFamily

Field Details

HANDLER_NAME

public static final String HANDLER_NAME

Constant HANDLERNAME="NESTWorkflowHandler"

See Also:

• Constant Field Values

Constructor Details

NESTWorkflowHandler

public NESTWorkflowHandler()

Constructor for NESTWorkflowHandler.

Method Details

getObject

public Object getObject()

After parsing the document, this method must be called to get the Object. This method can only be called once, because after calling the internal variables are resetted to reuse the object.

Overrides:

getObject in class NESTGraphHandler

isHandlerFor

public boolean isHandlerFor(String uri,
 String localName,
 String qName,
 Attributes attributes)

Queries the handler for possible handling of the given (SAX-)parameters

Overrides:

isHandlerFor in class NESTGraphHandler

Returns:

getName

public String getName()

Each io component must have a name that is used in IOFactory.newIO(String). The name must be unique thus it is usefull to use a short description or to the class name ( this.getClass().getName()).

Specified by:

getName in interface IO

Overrides:

getName in class NESTGraphHandler

Returns:

Returns the name of the io component.

isHandlerFor

public boolean isHandlerFor(Class value)

Checks if the io component is capable to perform the operation for objects of this class.

A typical implementation looks like:

 public boolean isHandlerFor(Class value) {
        if (DataObject.class.isAssignableFrom(value))
                return true;
        return false;
 }
 

Specified by:

isHandlerFor in interface IO

Overrides:

isHandlerFor in class NESTGraphHandler

Parameters:

value - The class that has to be checked.

Returns:

Results true if the class can oeprate with the given class.

copy

public IO copy()

overwritten copy-method from Object; use it to copy a complete operator

Specified by:

copy in interface IO

Overrides:

copy in class NESTGraphHandler

Returns:

startElement

public void startElement(String uri,
 String localName,
 String qName,
 Attributes attributes)
                  throws SAXException

Start portal

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class NESTGraphHandler

Throws:

SAXException

endElement

public void endElement(String uri,
 String localName,
 String qName)
                throws SAXException

End portal

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class NESTGraphHandler

Throws:

SAXException

startNodeElement

protected void startNodeElement(Attributes attributes)
                         throws ProCAKEClassNotFoundException,
IllegalInstantiationException,
ProCAKEInvalidTypeException,
ProCAKENoSuchAttributeException

startNodeElement.

Overrides:

startNodeElement in class NESTAbstractWorkflowHandler

Parameters:

attributes - a Attributes object

Throws:

ProCAKEClassNotFoundException - if any.

IllegalInstantiationException - if any.

ProCAKEInvalidTypeException - if any.

ProCAKENoSuchAttributeException - if any.