org.aksw.jena_sparql_api.io.binseach

Class DecodedDataBlock

java.lang.Object

org.aksw.jena_sparql_api.io.binseach.DecodedDataBlock

All Implemented Interfaces:

AutoCloseable, ChannelFactory<Seekable>, Block, Segment

public class DecodedDataBlock
extends Object
implements Block

Field Summary

Fields

Modifier and Type	Field and Description
protected BlockSource	blockSource
protected long	blockStart
protected ChannelFactory<Seekable>	channelFactory

Constructor Summary

Constructors

Constructor and Description
DecodedDataBlock(BlockSource blockSource, long blockStart, ChannelFactory<Seekable> channelFactory)

Method Summary

Modifier and Type	Method and Description
void	close()
long	getBlockStart()
BlockSource	getBufferSource()
ChannelFactory<Seekable>	getChannelFactory()
long	getOffset() Offset in a parent container; should be 0 if there is none
boolean	hasNext() Check if there is a subsequent block.
boolean	hasPrev()
long	length() Retrieve the length of the segment For segments that are based on encoded data this method may trigger a full read
Seekable	newChannel()
Reference<Block>	nextBlock() The block source of this block - if any.
Reference<Block>	prevBlock()

Methods inherited from class java.lang.Object

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

Field Detail

blockSource

protected BlockSource blockSource

blockStart

protected long blockStart

channelFactory

protected ChannelFactory<Seekable> channelFactory

Constructor Detail

DecodedDataBlock

public DecodedDataBlock(BlockSource blockSource,
                        long blockStart,
                        ChannelFactory<Seekable> channelFactory)

Method Detail

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: Block

Check if there is a subsequent block.

Specified by:

hasNext in interface Block

Returns:

Throws:

IOException

hasPrev

public boolean hasPrev()
                throws IOException

Specified by:

hasPrev in interface Block

Throws:

IOException

nextBlock

public Reference<Block> nextBlock()
                           throws IOException

Description copied from interface: Block

The block source of this block - if any.

Specified by:

nextBlock in interface Block

Returns:

the block source or null if there is none

Throws:

IOException

prevBlock

public Reference<Block> prevBlock()
                           throws IOException

Specified by:

prevBlock in interface Block

Throws:

IOException

getOffset

public long getOffset()

Description copied from interface: Block

Offset in a parent container; should be 0 if there is none

Specified by:

getOffset in interface Block

Returns:

getBufferSource

public BlockSource getBufferSource()

getBlockStart

public long getBlockStart()

getChannelFactory

public ChannelFactory<Seekable> getChannelFactory()

newChannel

public Seekable newChannel()

Specified by:

newChannel in interface ChannelFactory<Seekable>

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

length

public long length()
            throws IOException

Description copied from interface: Segment

Retrieve the length of the segment For segments that are based on encoded data this method may trigger a full read

Specified by:

length in interface Segment

Returns:

Throws:

IOException