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.AbstractXMLHandler

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

All Implemented Interfaces:

DependencyTags, IO, ContentHandler

public class DependencyHandler
extends AbstractXMLHandler
implements DependencyTags

Class for dependency specific implementation of xml handler.

Author:

Rahol Kumar, Alexander Schultheis

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HANDLER_NAME	Name of the current handler.

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

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

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)
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)

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

callSubHandlerEnd, callSubHandlerStart, 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

Name of the current handler. Value is "DependencyHandler".

See Also:

• Constant Field Values

Constructor Details

DependencyHandler

public DependencyHandler(WriteableObjectPool casebase,
 DependencyModel dependencyModel)

Constructor for DependencyHandler.

Parameters:

casebase - a WriteableObjectPool object

dependencyModel - a DependencyModel object

Method Details

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 class AbstractXMLHandler

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 class AbstractXMLHandler

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 AbstractXMLHandler

endElement

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

Specified by:

endElement in interface ContentHandler

subHandlerFinishedWithObject

public void subHandlerFinishedWithObject(Object subHandlerObject)

Specified by:

subHandlerFinishedWithObject in class AbstractXMLHandler

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: