org.apache.marmotta.kiwi.persistence.util

Class ResultSetIteration<E>

java.lang.Object

org.apache.marmotta.kiwi.persistence.util.ResultSetIteration<E>

All Implemented Interfaces:

info.aduna.iteration.CloseableIteration<E,SQLException>, info.aduna.iteration.Iteration<E,SQLException>

public class ResultSetIteration<E>
extends Object
implements info.aduna.iteration.CloseableIteration<E,SQLException>

A wrapper class for creating ClosableIterations from a SQL JDBC ResultSet. Takes a Guava Function as transformer from result rows to entities.

Author: Sebastian Schaffert

Constructor Summary

Constructors

Constructor and Description
ResultSetIteration(ResultSet result, boolean closeStatement, ResultTransformerFunction<E> transformer)
ResultSetIteration(ResultSet result, ResultTransformerFunction<E> transformer)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes this iteration, freeing any resources that it is holding.
protected void	finalize()
boolean	hasNext() Returns true if the iteration has more elements.
E	next() Returns the next element in the iteration.
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetIteration

public ResultSetIteration(ResultSet result,
                  ResultTransformerFunction<E> transformer)

ResultSetIteration

public ResultSetIteration(ResultSet result,
                  boolean closeStatement,
                  ResultTransformerFunction<E> transformer)

Method Detail

close

public void close()
           throws SQLException

Closes this iteration, freeing any resources that it is holding. If the iteration has already been closed then invoking this method has no effect.

Specified by:

close in interface info.aduna.iteration.CloseableIteration<E,SQLException>

Throws:

SQLException

hasNext

public boolean hasNext()
                throws SQLException

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

Specified by:

hasNext in interface info.aduna.iteration.Iteration<E,SQLException>

Returns:

true if the iteration has more elements.

Throws:

SQLException

next

public E next()
       throws SQLException

Returns the next element in the iteration.

Specified by:

next in interface info.aduna.iteration.Iteration<E,SQLException>

Returns:

the next element in the iteration.

Throws:

NoSuchElementException - if the iteration has no more elements or if it has been closed.

SQLException

remove

public void remove()
            throws SQLException

Specified by:

remove in interface info.aduna.iteration.Iteration<E,SQLException>

Throws:

SQLException

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable