Package com.github.nwillc.funjdbc

Class ResultSetIterator<T>

java.lang.Object

com.github.nwillc.funjdbc.ResultSetIterator<T>

Type Parameters:

T - The type of elements being extracted

All Implemented Interfaces:

java.lang.AutoCloseable, java.util.Iterator<T>

public class ResultSetIterator<T>
extends java.lang.Object
implements java.util.Iterator<T>, java.lang.AutoCloseable

This is an Iterator that traverses a ResultSet returning elements via an Extractor. Additionally this implements Autocloseable, and support for adding other onClose Runnables.

Constructor Summary

Constructors

Constructor	Description
ResultSetIterator(java.sql.ResultSet resultSet, Extractor<T> extractor)	Create an instance with with a ResultSet to iterate over, and an Extractor to apply to each row.

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	hasNext()
T	next()
ResultSetIterator<T>	onClose(java.lang.Runnable runnable)	Add a Runnable to be invoked when this instance is closed.

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetIterator

public ResultSetIterator(java.sql.ResultSet resultSet,
                         Extractor<T> extractor)

Create an instance with with a ResultSet to iterate over, and an Extractor to apply to each row.

Parameters:

resultSet - the ResultSet to iterate over

extractor - the Extractor to apply to each row

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<T>

next

public T next()

Specified by:

next in interface java.util.Iterator<T>

onClose

public ResultSetIterator<T> onClose(java.lang.Runnable runnable)

Add a Runnable to be invoked when this instance is closed. Runnables will be invoked in the order they are added.

Parameters:

runnable - a runnable

Returns:

this instance

close

public void close()
           throws java.sql.SQLException

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.sql.SQLException