Package de.julielab.costosys.dbconnection

Class ThreadedColumnsIterator

java.lang.Object

de.julielab.costosys.dbconnection.DBCIterator<E>

de.julielab.costosys.dbconnection.DBCThreadedIterator<Object[]>

de.julielab.costosys.dbconnection.ThreadedColumnsIterator

All Implemented Interfaces:

Iterator<Object[]>

public class ThreadedColumnsIterator
extends DBCThreadedIterator<Object[]>

Retrieves a list of fields from the requested table. Uses a background thread for fetching the next batch of fields after the previous batch has been returned.

Author:

hellrich

Field Summary

Fields inherited from class de.julielab.costosys.dbconnection.DBCThreadedIterator

backgroundThread, listExchanger

Constructor Summary

Constructors

Constructor	Description
ThreadedColumnsIterator(DataBaseConnector dbc, CoStoSysConnection conn, List<String[]> keys, List<String> fields, String table, long limit, String schemaName)
ThreadedColumnsIterator(DataBaseConnector dbc, CoStoSysConnection conn, List<String[]> keys, List<String> fields, String table, String schemaName)
ThreadedColumnsIterator(DataBaseConnector dbc, CoStoSysConnection conn, List<String> fields, String table)
ThreadedColumnsIterator(DataBaseConnector dbc, CoStoSysConnection conn, List<String> fields, String table, long limit)
ThreadedColumnsIterator(DataBaseConnector dbc, List<String[]> keys, List<String> fields, String table, String schemaName)
ThreadedColumnsIterator(DataBaseConnector dbc, List<String> fields, String table)
ThreadedColumnsIterator(DataBaseConnector dbc, List<String> fields, String table, long limit)

Method Summary

Modifier and Type	Method	Description
void	close()	Frees resources occupied by this iterator (e.g.
void	closeConnection()
void	join()

Methods inherited from class de.julielab.costosys.dbconnection.DBCThreadedIterator

hasNext, next, remove, update

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               List<String[]> keys,
                               List<String> fields,
                               String table,
                               String schemaName)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               CoStoSysConnection conn,
                               List<String[]> keys,
                               List<String> fields,
                               String table,
                               String schemaName)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               CoStoSysConnection conn,
                               List<String[]> keys,
                               List<String> fields,
                               String table,
                               long limit,
                               String schemaName)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               List<String> fields,
                               String table)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               CoStoSysConnection conn,
                               List<String> fields,
                               String table)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               List<String> fields,
                               String table,
                               long limit)

ThreadedColumnsIterator

public ThreadedColumnsIterator(DataBaseConnector dbc,
                               CoStoSysConnection conn,
                               List<String> fields,
                               String table,
                               long limit)

Method Detail

closeConnection

public void closeConnection()

close

public void close()

Description copied from class: DBCIterator

Frees resources occupied by this iterator (e.g. database connections).

Specified by:

close in class DBCThreadedIterator<Object[]>

join

public void join()
          throws InterruptedException

Specified by:

join in class DBCThreadedIterator<Object[]>

Throws:

InterruptedException