edu.unh.sdb.datasource
Class BlockManager

java.lang.Object
  edu.unh.sdb.datasource.BlockManager

Direct Known Subclasses:

OverlapBlockManager

public class BlockManager
extends java.lang.Object

Field Summary

protected int[]	accessHistory
protected ISBounds[]	blockBounds
protected ISBounds	bounds
protected ComponentInfo[]	components
protected int	dim
protected boolean[]	fmpFlags
protected RecordDescriptor	recordDesc
protected int	size
protected int[]	sortArray

Constructor Summary

BlockManager(ComponentInfo[] cinfo)
Construct a BlockManager from an array of ComponentInfo.

Method Summary

ARBlock	ARRep(ISBounds bounds) Return a ARBlock, which is a AR representation of the requested area of specified ISBounds
static ISBounds	buildISBounds(ComponentInfo[] cinfo)
boolean	check(ComponentInfo[] cinfo)
void	datum(Datum d, IndexSpaceID id) Pass by reference datum method.
void	datum(Datum d, IndexSpaceID id, FieldIDMapper fmap) Pass by reference datum method.
void	datum(Datum d, IndexSpaceID id, RecordSpec spec) Pass by reference datum method.
Datum	datum(IndexSpaceID id) Deprecated.
Datum	datum(IndexSpaceID id, RecordSpec spec) Deprecated.
int	dim() return the dimensionality of this BlockManager
ISBounds	getBounds() Return the Bounds of this BlockManager
ComponentInfo[]	getComponentInfo() Return the ComponentInfo array.
ComponentInfo	getComponentInfo(int index) Return the ComponentInfo specified by the index.
RecordDescriptor	getRecordDescriptor() Return the RecordDescriptor of this BlockManager
protected ISBounds	hasIntersection(ISBounds isb1, ISBounds isb2)
static boolean	isRegular(ComponentInfo[] cinfo) Return true if the data is regular data, i.e.
int	searchBlock(IndexSpaceID isid)
int	size() Return the number of components within this BlockManager
void	subblock(DataBlock theBlock, ISBounds dstBounds, ISBounds srcBounds) Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.
void	subblock(DataBlock theBlock, ISBounds dstBounds, ISBounds srcBounds, FieldIDMapper mp) Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.
void	subblock(DataBlock theBlock, ISBounds dstBounds, ISBounds srcBounds, RecordSpec spec) Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.

Methods inherited from class java.lang.Object

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

Field Detail

components

protected ComponentInfo[] components

recordDesc

protected RecordDescriptor recordDesc

bounds

protected ISBounds bounds

dim

protected int dim

size

protected int size

blockBounds

protected ISBounds[] blockBounds

fmpFlags

protected boolean[] fmpFlags

accessHistory

protected int[] accessHistory

sortArray

protected int[] sortArray

Constructor Detail

BlockManager

public BlockManager(ComponentInfo[] cinfo)

Construct a BlockManager from an array of ComponentInfo.

Method Detail

isRegular

public static boolean isRegular(ComponentInfo[] cinfo)

Return true if the data is regular data, i.e. components form a regualar grid

buildISBounds

public static ISBounds buildISBounds(ComponentInfo[] cinfo)

check

public boolean check(ComponentInfo[] cinfo)

getBounds

public ISBounds getBounds()

Return the Bounds of this BlockManager

datum

public void datum(Datum d,
                  IndexSpaceID id,
                  FieldIDMapper fmap)

Pass by reference datum method. Retunrs the Datum corresponding to the given IndexSpaceID and FieldIDMapper.

datum

public void datum(Datum d,
                  IndexSpaceID id)

Pass by reference datum method. Retunrs the Datum corresponding to the given IndexSpaceID.

datum

public void datum(Datum d,
                  IndexSpaceID id,
                  RecordSpec spec)

Pass by reference datum method. Retunrs the Datum corresponding to the given IndexSpaceID and RecordSpec.

datum

public Datum datum(IndexSpaceID id)

Deprecated.

Return the Datum corresponding to the given IndexSpaceID.

datum

public Datum datum(IndexSpaceID id,
                   RecordSpec spec)

Deprecated.

Return the Datum corresponding to the given IndexSpaceID and RecordSpec.

subblock

public void subblock(DataBlock theBlock,
                     ISBounds dstBounds,
                     ISBounds srcBounds,
                     FieldIDMapper mp)

Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds. The FieldIDMapper argument determines the mapping between datums in the datasource and datums in the DataBlock.

subblock

public void subblock(DataBlock theBlock,
                     ISBounds dstBounds,
                     ISBounds srcBounds)

Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.

subblock

public void subblock(DataBlock theBlock,
                     ISBounds dstBounds,
                     ISBounds srcBounds,
                     RecordSpec spec)

Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds. The RecordSpec argument specifies a subset of the DataSource attributes to be written into the DataBlock datums.

getComponentInfo

public ComponentInfo[] getComponentInfo()

Return the ComponentInfo array.

getComponentInfo

public ComponentInfo getComponentInfo(int index)

Return the ComponentInfo specified by the index.

getRecordDescriptor

public RecordDescriptor getRecordDescriptor()

Return the RecordDescriptor of this BlockManager

size

public int size()

Return the number of components within this BlockManager

dim

public int dim()

return the dimensionality of this BlockManager

ARRep

public ARBlock ARRep(ISBounds bounds)

Return a ARBlock, which is a AR representation of the requested area of specified ISBounds

hasIntersection

protected ISBounds hasIntersection(ISBounds isb1,
                                   ISBounds isb2)

searchBlock

public int searchBlock(IndexSpaceID isid)