io.datarouter.scanner

Class PrefetchingScanner<T>

java.lang.Object

io.datarouter.scanner.BaseScanner<R>

io.datarouter.scanner.BaseLinkedScanner<T,List<T>>

io.datarouter.scanner.PrefetchingScanner<T>

All Implemented Interfaces:

Scanner<List<T>>, Closeable, AutoCloseable

public class PrefetchingScanner<T>
extends BaseLinkedScanner<T,List<T>>

Field Summary

Fields inherited from class io.datarouter.scanner.BaseLinkedScanner

closed, input

Fields inherited from class io.datarouter.scanner.BaseScanner

current

Constructor Summary

Constructors

Constructor and Description
PrefetchingScanner(Scanner<T> input, ExecutorService exec, int batchSize)

Method Summary

Modifier and Type	Method and Description
boolean	advanceInternal()
protected void	closeInternal() Extend to close internal resources before the input scanner is closed.

Methods inherited from class io.datarouter.scanner.BaseLinkedScanner

advance, close

Methods inherited from class io.datarouter.scanner.BaseScanner

current

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.datarouter.scanner.Scanner

advanceUntil, advanceWhile, allMatch, anyMatch, append, append, append, apply, batch, collate, collate, collect, collect, concat, concat, concat, concatIter, count, deduplicateConsecutive, deduplicateConsecutiveBy, distinct, distinctBy, each, empty, exclude, findFirst, findLast, findMax, findMin, flush, forEach, generate, groupBy, groupBy, groupBy, groupBy, hasAny, include, isEmpty, iterable, iterate, iterator, limit, link, list, listTo, map, maxN, minN, noneMatch, of, of, of, of, of, ofNullable, parallel, prefetch, reduce, reduce, retain, reverse, sample, shuffle, skip, sort, sort, splitBy, stream, streamDoubles, streamInts, streamLongs, take, then, toArray, toMap, toMap, toMap, toMap, toMap, toMapSupplied, toMapSupplied, toMapSupplied, toMapSupplied

Constructor Detail

PrefetchingScanner

public PrefetchingScanner(Scanner<T> input,
                          ExecutorService exec,
                          int batchSize)

Method Detail

advanceInternal

public boolean advanceInternal()

Specified by:

advanceInternal in class BaseLinkedScanner<T,List<T>>

closeInternal

protected void closeInternal()

Description copied from class: BaseLinkedScanner

Extend to close internal resources before the input scanner is closed.

Overrides:

closeInternal in class BaseLinkedScanner<T,List<T>>