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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.db.impl 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.hp.hpl.jena.db.impl.ResultSetIterator
      com.hp.hpl.jena.db.impl.ResultSetTripleIterator

ResultSetTripleIterator
public class ResultSetTripleIterator extends ResultSetIterator (Code)
Version of ResultSetIterator that extracts database rows as Triples.
author:
   hkuno. Based on ResultSetResource Iterator, by Dave Reynolds, HPLabs, Bristol Dave Reynolds
version:
   $Revision: 1.12 $ on $Date: 2008/01/02 12:08:24 $


Field Summary
protected static  Loglogger
    
protected  IDBIDm_graphID
    
protected  booleanm_hasType
    
protected  booleanm_isReif
    
protected  IPSetm_pset
    
protected  Nodem_stmtURI
    
protected  Triplem_triple
    

Constructor Summary
public  ResultSetTripleIterator(IPSet p, IDBID graphID)
    
public  ResultSetTripleIterator(IPSet p, boolean isReif, IDBID graphID)
    

Method Summary
protected  voiddeleteRow()
     Delete the current row, which should have already been extracted.
protected  voidextractRow()
     Extract the current row into a triple.
protected  booleangetHasType()
     Return the current row, which should have already been extracted.
protected  ObjectgetRow()
     Return the current row, which should have already been extracted.
protected  NodegetStmtURI()
     Return the current row, which should have already been extracted.
public  voidremove()
     Remove the current triple from the data store.
public  voidreset(ResultSet resultSet, PreparedStatement sourceStatement, SQLCache cache, String opname)
     Reset an existing iterator to scan a new result set.
public  voidsetGraphID(IDBID gid)
     Set m_graphID.

Field Detail
logger
protected static Log logger(Code)



m_graphID
protected IDBID m_graphID(Code)
The rdf model in which to instantiate any resources



m_hasType
protected boolean m_hasType(Code)
HasType flag if iterating over reified statements



m_isReif
protected boolean m_isReif(Code)
True if iterating over reified statements



m_pset
protected IPSet m_pset(Code)
The database driver, used to access namespace and resource caches



m_stmtURI
protected Node m_stmtURI(Code)
Statement URI if iterating over reified statements



m_triple
protected Triple m_triple(Code)
Holds the current row as a triple




Constructor Detail
ResultSetTripleIterator
public ResultSetTripleIterator(IPSet p, IDBID graphID)(Code)



ResultSetTripleIterator
public ResultSetTripleIterator(IPSet p, boolean isReif, IDBID graphID)(Code)




Method Detail
deleteRow
protected void deleteRow()(Code)
Delete the current row, which should have already been extracted. Should only be used (carefully and) internally by db layer.



extractRow
protected void extractRow() throws SQLException(Code)
Extract the current row into a triple. Requires the row to be of the form: subject URI (String) predicate URI (String) object URI (String) object value (String) Object literal id (Object) The object of the triple can be either a URI, a simple literal (in which case it will just have an object value, or a complex literal (in which case both the object value and the object literal id columns may be populated.



getHasType
protected boolean getHasType()(Code)
Return the current row, which should have already been extracted.



getRow
protected Object getRow()(Code)
Return the current row, which should have already been extracted.



getStmtURI
protected Node getStmtURI()(Code)
Return the current row, which should have already been extracted.



remove
public void remove()(Code)
Remove the current triple from the data store.



reset
public void reset(ResultSet resultSet, PreparedStatement sourceStatement, SQLCache cache, String opname)(Code)
Reset an existing iterator to scan a new result set.
Parameters:
  resultSet - the result set being iterated over
Parameters:
  sourceStatement - The source Statement to be cleaned up when the iterator finishes - return it to cache or close it if no cache
Parameters:
  cache - The originating SQLcache to return the statement to, can be null
Parameters:
  opname - The name of the original operation that lead to this statement, can be null if SQLCache is null



setGraphID
public void setGraphID(IDBID gid)(Code)
Set m_graphID.
Parameters:
  gid - is the id of the graph associated with this iterator.



Fields inherited from com.hp.hpl.jena.db.impl.ResultSetIterator
protected static Log logger(Code)(Java Doc)
protected boolean m_finished(Code)(Java Doc)
protected int m_nCols(Code)(Java Doc)
protected String m_opname(Code)(Java Doc)
protected boolean m_prefetched(Code)(Java Doc)
protected ResultSet m_resultSet(Code)(Java Doc)
protected ArrayList m_row(Code)(Java Doc)
protected SQLCache m_sqlCache(Code)(Java Doc)
protected PreparedStatement m_statement(Code)(Java Doc)
protected boolean m_statementClean(Code)(Java Doc)

Methods inherited from com.hp.hpl.jena.db.impl.ResultSetIterator
public ExtendedIterator andThen(ClosableIterator other)(Code)(Java Doc)
protected void cantRemove()(Code)(Java Doc)
public void close()(Code)(Java Doc)
protected void extractRow() throws Exception(Code)(Java Doc)
public ExtendedIterator filterDrop(Filter f)(Code)(Java Doc)
public ExtendedIterator filterKeep(Filter f)(Code)(Java Doc)
protected void finalize() throws SQLException(Code)(Java Doc)
protected Object getRow()(Code)(Java Doc)
public Object getSingleton() throws SQLException(Code)(Java Doc)
public boolean hasNext()(Code)(Java Doc)
public ExtendedIterator mapWith(Map1 map1)(Code)(Java Doc)
protected void moveForward()(Code)(Java Doc)
public Object next()(Code)(Java Doc)
public void remove()(Code)(Java Doc)
public Object removeNext()(Code)(Java Doc)
public void reset(ResultSet resultSet, PreparedStatement sourceStatement, SQLCache cache, String opname)(Code)(Java Doc)
public void reset(ResultSet resultSet, PreparedStatement sourceStatement)(Code)(Java Doc)
public List toList()(Code)(Java Doc)
public Set toSet()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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