org.openrdf.sail.rdbms.iteration.base

Class RdbmIterationBase<T,X extends Exception>

java.lang.Object

info.aduna.iteration.CloseableIterationBase<T,X>

org.openrdf.sail.rdbms.iteration.base.RdbmIterationBase<T,X>

All Implemented Interfaces:

CloseableIteration<T,X>, Iteration<T,X>

Direct Known Subclasses:

RdbmsBindingIteration, RdbmsResourceIteration, RdbmsStatementIteration

public abstract class RdbmIterationBase<T,X extends Exception>
extends CloseableIterationBase<T,X>

Base class for Iteration of a ResultSet.

Author:

James Leigh

Constructor Summary

Constructors

Constructor and Description
RdbmIterationBase(PreparedStatement stmt)

Method Summary

Modifier and Type	Method and Description
protected abstract T	convert(ResultSet rs)
protected abstract X	convertSQLException(SQLException e)
protected void	handleClose() Called by CloseableIterationBase.close() when it is called for the first time.
boolean	hasNext() Returns true if the iteration has more elements.
T	next() Returns the next element in the iteration.
void	remove() Removes from the underlying collection the last element returned by the iteration (optional operation).

Methods inherited from class info.aduna.iteration.CloseableIterationBase

close, isClosed

Methods inherited from class java.lang.Object

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

Constructor Detail

RdbmIterationBase

public RdbmIterationBase(PreparedStatement stmt)
                  throws SQLException

Throws:

SQLException

Method Detail

handleClose

protected void handleClose()
                    throws X extends Exception

Description copied from class: CloseableIterationBase

Called by CloseableIterationBase.close() when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.

Overrides:

handleClose in class CloseableIterationBase<T,X extends Exception>

Throws:

X

X extends Exception

hasNext

public boolean hasNext()
                throws X extends Exception

Description copied from interface: Iteration

Returns true if the iteration has more elements. (In other words, returns true if Iteration.next() would return an element rather than throwing a NoSuchElementException.)

Returns:

true if the iteration has more elements.

Throws:

X

X extends Exception

next

public T next()
       throws X extends Exception

Description copied from interface: Iteration

Returns the next element in the iteration.

Returns:

the next element in the iteration.

Throws:

X extends Exception

remove

public void remove()
            throws X extends Exception

Description copied from interface: Iteration

Removes from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.

Throws:

X extends Exception

convert

protected abstract T convert(ResultSet rs)
                      throws SQLException

Throws:

SQLException

convertSQLException

protected abstract X convertSQLException(SQLException e)