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

Class DependencyHandler

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.XMLReadHandlerImpl

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

All Implemented Interfaces:

DependencyTags, ContentHandler, IO, ContentHandler

public class DependencyHandler
extends XMLReadHandlerImpl
implements DependencyTags

Class for dependency specific implementation of xml handler.

Author:

Rahol Kumar, Alexander Schultheis

Field Summary

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

ATT_GRAPH_ITEM_INFORMATION_REQUIRED, ATT_NAME, ATT_SOURCE, ATT_SOURCE_CASE, ATT_SOURCE_CASE_ITEM, ATT_SOURCE_CASE_ITEM_SEMANTIC_DESCRIPTOR, ATT_TARGET, ATT_TARGET_CASE, ATT_TARGET_CASE_ITEM, ATT_TARGET_CASE_ITEM_SEMANTIC_DESCRIPTOR, ATT_TYPE, ATT_VALUE, PREFIX_DEPENDENCY, SCHEMA_LOCATION_DEPENDENCY, TAG_DEPENDENCIES, TAG_DEPENDENCY, TAG_DEPENDENCY_MODEL, TAG_DEPENDENCY_SIMILARITIES, TAG_DEPENDENCY_SIMILARITY, TAG_DEPENDENCY_TYPE, TAG_DEPENDENCY_TYPES, URI_DEPENDENCY

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

COMPONENT, COMPONENT_KEY, DEFAULT_ENCODING, LOG_CONTENTHANDLER_NOT_FOUND, LOG_FILE_NOT_FOUND, LOG_IO_EXCEPTION, LOG_READER_NOT_FOUND, LOG_SAX_EXCEPTION, LOG_UNKNOWN_PARAMETER, LOG_WRITER_NOT_FOUND, LOG_WRONG_PARAMATER_TYPE, RESOURCE_XML

Constructor Summary

Constructors

Constructor	Description
DependencyHandler(WriteableObjectPool casebase, DependencyModel dependencyModel)	Constructor for DependencyHandler.

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)	Appends the given characters, at the given position, to the internal StringBuffer
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)
void	subHandlerFinishedWithObject(Object subHandlerObject)	Callback-method from the subHandler to inform the parentHandler about the finished object

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

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

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

getDescription, 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 de.uni_trier.wi2.procake.utils.io.IO

getDescription, getFamily, setFamily

Constructor Detail

DependencyHandler

public DependencyHandler(WriteableObjectPool casebase,
                         DependencyModel dependencyModel)

Constructor for DependencyHandler.

Parameters:

casebase - a WriteableObjectPool object

dependencyModel - a DependencyModel object

Method Detail

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

Returns:

Returns the name of the io component.

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.

Specified by:

getObject in interface ContentHandler

isHandlerFor

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

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

Specified by:

isHandlerFor in interface ContentHandler

Returns:

startElement

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

Specified by:

startElement in interface ContentHandler

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)

Appends the given characters, at the given position, to the internal StringBuffer Appends the given characters, at the given position, to the internal StringBuffer. Here, only a description for dependency types is read and added to the objects.

Specified by:

characters in interface ContentHandler

Overrides:

characters in class XMLReadHandlerImpl

endElement

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

Specified by:

endElement in interface ContentHandler

subHandlerFinishedWithObject

public void subHandlerFinishedWithObject(Object subHandlerObject)

Callback-method from the subHandler to inform the parentHandler about the finished object

Specified by:

subHandlerFinishedWithObject in interface ContentHandler

Specified by:

subHandlerFinishedWithObject in class XMLReadHandlerImpl

Parameters:

subHandlerObject - The object created by the subHandler.

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

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

Returns: