Class BlockSources

java.lang.Object

org.aksw.commons.io.hadoop.binseach.bz2.BlockSources

public class BlockSources
extends Object

Constructor Summary

Constructors

Constructor	Description
BlockSources()

Method Summary

Modifier and Type	Method	Description
static org.aksw.commons.util.ref.Ref<? extends Block>	binarySearch(BlockSource blockSource, long min, long max, byte delimiter, byte[] prefix)	Binary search over blocks Only examines the first record in the block to decide whether to look into the next or the previous one
static void	closeWithRethrowAsIOException(AutoCloseable obj)
static BinarySearcher	createBinarySearcherBz2(FileChannel fileChannel, int pageSize, boolean closeChannel)
static BinarySearcher	createBinarySearcherBz2(Path path)
static BinarySearcher	createBinarySearcherBz2(Path path, int pageSize)
static BinarySearcher	createBinarySearcherBz2(SeekableSource seekableSource)
static BinarySearcher	createBinarySearcherText(FileChannel fileChannel, int pageSize, boolean closeChannel)
static BinarySearcher	createBinarySearcherText(Path path)
static BinarySearcher	createBinarySearcherText(Path path, int pageSize)

Methods inherited from class Object

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

Constructor Details

BlockSources

public BlockSources()

Method Details

createBinarySearcherBz2

public static BinarySearcher createBinarySearcherBz2(Path path)
                                              throws IOException

Throws:

IOException

createBinarySearcherBz2

public static BinarySearcher createBinarySearcherBz2(Path path,
 int pageSize)
                                              throws IOException

Throws:

IOException

createBinarySearcherBz2

public static BinarySearcher createBinarySearcherBz2(FileChannel fileChannel,
 int pageSize,
 boolean closeChannel)
                                              throws IOException

Throws:

IOException

createBinarySearcherBz2

public static BinarySearcher createBinarySearcherBz2(SeekableSource seekableSource)
                                              throws IOException

Throws:

IOException

createBinarySearcherText

public static BinarySearcher createBinarySearcherText(Path path)
                                               throws IOException

Throws:

IOException

createBinarySearcherText

public static BinarySearcher createBinarySearcherText(Path path,
 int pageSize)
                                               throws IOException

Throws:

IOException

createBinarySearcherText

public static BinarySearcher createBinarySearcherText(FileChannel fileChannel,
 int pageSize,
 boolean closeChannel)
                                               throws IOException

Throws:

IOException

binarySearch

public static org.aksw.commons.util.ref.Ref<? extends Block> binarySearch(BlockSource blockSource,
 long min,
 long max,
 byte delimiter,
 byte[] prefix)
                                                                   throws IOException

Binary search over blocks Only examines the first record in the block to decide whether to look into the next or the previous one

Parameters:

blockSource -

min -

max - (exclusive)

delimiter -

prefix -

Returns:

A reference to a block that may contain the key or null if no candidate block was found

Throws:

Exception

IOException

closeWithRethrowAsIOException

public static void closeWithRethrowAsIOException(AutoCloseable obj)
                                          throws IOException

Throws:

IOException