Class SequencedReader<S,T>

java.lang.Object

org.ojalgo.netio.SequencedReader<S,T>

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<T>, FromFileReader<T>

final class SequencedReader<S,T>
extends Object
implements FromFileReader<T>

Nested Class Summary

Nested classes/interfaces inherited from interface FromFileReader

FromFileReader.Builder<F>

Field Summary

Fields

Modifier and Type	Field	Description
private FromFileReader<T>	myCurrent
private final Function<S, ? extends FromFileReader<T>>	myFactory
private final BlockingQueue<S>	mySources

Constructor Summary

Constructors

Constructor	Description
SequencedReader(BlockingQueue<S> sources, Function<S, ? extends FromFileReader<T>> factory)	Create an invalid reference AutoSupplier that will supply items from the containers, one after the other, until all containers are empty.

Method Summary

Modifier and Type	Method	Description
void	close()
private void	nextSupplier()
T	read()	Returning null indicates that there are no more items to read.

Methods inherited from class Object

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

Methods inherited from interface FromFileReader

drainTo, forEachInBacthes, iterator, map, stream

Methods inherited from interface Iterable

forEach, spliterator

Field Details

myCurrent

private FromFileReader<T> myCurrent

myFactory

private final Function<S, ? extends FromFileReader<T>> myFactory

mySources

private final BlockingQueue<S> mySources

Constructor Details

SequencedReader

SequencedReader(BlockingQueue<S> sources,
 Function<S, ? extends FromFileReader<T>> factory)

Create an

invalid reference

AutoSupplier

that will supply items from the containers, one after the other, until all containers are empty. You can create multiple such suppliers sharing the same queue of containers.

Type Parameters:

S - The type of some sort of item container (maybe a File)

T - The supplier item type (what do the files contain?)

Parameters:

sources - A set of item containers (could be a set of File:s)

factory - A factory method that can take one of the "containers" and return an item supplier.

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FromFileReader<S>

Throws:

IOException

read

public T read()

Description copied from interface: FromFileReader

Returning null indicates that there are no more items to read. That's the same behaviour as BufferedReader.readLine(). All implementations must return null precisely once.

Specified by:

read in interface FromFileReader<S>

nextSupplier

private void nextSupplier()