| 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 $ |
| Method Summary | |
| protected void | deleteRow()
Delete the current row, which should have already been extracted. | | protected void | extractRow()
Extract the current row into a triple. | | protected boolean | getHasType()
Return the current row, which should have already been extracted. | | protected Object | getRow()
Return the current row, which should have already been extracted. | | protected Node | getStmtURI()
Return the current row, which should have already been extracted. | | public void | remove()
Remove the current triple from the data store. | | public void | reset(ResultSet resultSet, PreparedStatement sourceStatement, SQLCache cache, String opname)
Reset an existing iterator to scan a new result set. | | public void | setGraphID(IDBID gid)
Set m_graphID. |
| 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
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| m_isReif | | protected boolean m_isReif(Code) | | True if iterating over reified statements
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| m_pset | | protected IPSet m_pset(Code) | | The database driver, used to access namespace and resource caches
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| m_stmtURI | | protected Node m_stmtURI(Code) | | Statement URI if iterating over reified statements
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| m_triple | | protected Triple m_triple(Code) | | Holds the current row as a triple
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| ResultSetTripleIterator | | public ResultSetTripleIterator(IPSet p, IDBID graphID)(Code) | | |
| ResultSetTripleIterator | | public ResultSetTripleIterator(IPSet p, boolean isReif, IDBID graphID)(Code) | | |
| 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. |
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