edu.unh.sdb.datasource
Class DataBlockProxy

java.lang.Object
  edu.unh.sdb.datasource.DataCollection
      edu.unh.sdb.datasource.DataBlock
          edu.unh.sdb.datasource.DataBlockProxy

All Implemented Interfaces:

Indexable

Direct Known Subclasses:

ARRSCopyDataBlock

public abstract class DataBlockProxy
extends DataBlock

Author:

rdb Created 11/27/05. Not really tested. Not yet really used.

Field Summary

Fields inherited from class edu.unh.sdb.datasource.DataCollection

attributeOrder, axisOrdering, axisWeights, bounds, dataOrder, dimensionality, numAttributes, pointOrder, recordDesc

Constructor Summary

protected	DataBlockProxy()
	DataBlockProxy(ISBounds isb, RecordDescriptor recordDesc)
	DataBlockProxy(ISBounds isb, RecordDescriptor recordDesc, AxisOrdering ordering)

Method Summary

void	datum(Datum dtm, IndexSpaceID did) Given an IndexSpaceID, copy the values of the Datum at that position to the argument Datum.
void	datum(Datum dtm, IndexSpaceID did, FieldIDMapper mp) Given an IndexSpaceID and FieldIDMapper, copy the values of the Datum at that position to the argument Datum.
protected DataBlock	getDataBlock() DataBlock getDataBlock()
protected abstract DataBlock	loadData() loadData() - responsibility of the child class to implement code to load the true DataBlock object.
protected void	setDataBlock(DataBlock blk) setDataBlock( DataBlock blk )
void	setDatum(IndexSpaceID isid, Datum d) Set the location specified by the IndexSpaceID to the given datum.
void	subblock(DataBlock dstBlock, ISBounds srcBounds, FieldIDMapper fmap) Reads a subblock defined by srcBounds into the Datablock argument.
void	subblock(DataBlock dstBlock, ISBounds dstBounds, ISBounds srcBounds) Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.
void	subblock(DataBlock dstBlock, ISBounds dstBounds, ISBounds srcBounds, FieldIDMapper fmap) Reads a subblock defined by srcBounds into the region of the Datablock argument defined by dstBounds.

Methods inherited from class edu.unh.sdb.datasource.DataBlock

getValues, setByAttribute, setByte, setBytes, setBytes, setBytesByAttribute, setBytesByPoint, setDouble, setDoubles, setDoubles, setDoublesByAttribute, setDoublesByPoint, setFloat, setFloats, setFloats, setFloatsByAttribute, setFloatsByPoint, setInt, setInts, setInts, setIntsByAttribute, setIntsByPoint, setShort, setShorts, setShorts, setShortsByAttribute, setShortsByPoint, setValues, setValues, setValuesByAttribute, setValuesByPoint, toString

Methods inherited from class edu.unh.sdb.datasource.DataCollection

byteSize, computeOffset, computeOffset, copyBounds, createDataBlock, createDataBlock, createDataBlock, createDatum, createDatum, createDatum, createDatum, createDatum, createDatum, datum, datum, datum, datum, datum, dim, getAxisOrdering, getAxisWeight, getAxisWeights, getBounds, getByte, getBytes, getBytes, getBytes, getBytes, getBytes, getBytes, getBytesByAttribute, getBytesByAttribute, getBytesByPoint, getBytesByPoint, getDataOrder, getDimensionsArray, getDouble, getDoubles, getDoubles, getDoubles, getDoubles, getDoubles, getDoubles, getDoublesByAttribute, getDoublesByAttribute, getDoublesByPoint, getDoublesByPoint, getFloat, getFloats, getFloats, getFloats, getFloats, getFloats, getFloats, getFloatsByAttribute, getFloatsByAttribute, getFloatsByPoint, getFloatsByPoint, getInt, getInts, getInts, getInts, getInts, getInts, getInts, getIntsByAttribute, getIntsByAttribute, getIntsByPoint, getIntsByPoint, getLowerBoundsArray, getNumAttributes, getRecordDescriptor, getShort, getShorts, getShorts, getShorts, getShorts, getShorts, getShorts, getShortsByAttribute, getShortsByAttribute, getShortsByPoint, getShortsByPoint, getStorageType, getValues, getValuesByAttribute, getValuesByPoint, longVolume, setAxisOrdering, setBounds, setRecordDescriptor, size, subblock, subblock, subblock, subblock, subblock, subblock, subblock, subblock, subblock, useBytesOnly, volume

Methods inherited from class java.lang.Object

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

Constructor Detail

DataBlockProxy

protected DataBlockProxy()

DataBlockProxy

public DataBlockProxy(ISBounds isb,
                      RecordDescriptor recordDesc,
                      AxisOrdering ordering)

Parameters:

isb -

recordDesc -

axisOrdering -

DataBlockProxy

public DataBlockProxy(ISBounds isb,
                      RecordDescriptor recordDesc)

Parameters:

isb -

recordDesc -

Method Detail

loadData

protected abstract DataBlock loadData()

loadData() - responsibility of the child class to implement code to load the true DataBlock object.

Returns:

setDataBlock

protected void setDataBlock(DataBlock blk)

setDataBlock( DataBlock blk )

getDataBlock

protected DataBlock getDataBlock()

DataBlock getDataBlock()

setDatum

public void setDatum(IndexSpaceID isid,
                     Datum d)

Description copied from class: DataBlock

Set the location specified by the IndexSpaceID to the given datum.

Specified by:

setDatum in class DataBlock

See Also:

DataBlock.setDatum(edu.unh.sdb.datasource.IndexSpaceID, edu.unh.sdb.common.Datum)

datum

public void datum(Datum dtm,
                  IndexSpaceID did)

Description copied from class: DataCollection

Given an IndexSpaceID, copy the values of the Datum at that position to the argument Datum. TODO Define error conditions

Specified by:

datum in interface Indexable

Overrides:

datum in class DataCollection

See Also:

DataCollection.datum(edu.unh.sdb.common.Datum, edu.unh.sdb.datasource.IndexSpaceID)

datum

public void datum(Datum dtm,
                  IndexSpaceID did,
                  FieldIDMapper mp)

Description copied from class: DataCollection

Given an IndexSpaceID and FieldIDMapper, copy the values of the Datum at that position to the argument Datum. TODO Define error conditions

Specified by:

datum in interface Indexable

Specified by:

datum in class DataCollection

See Also:

DataCollection.datum(edu.unh.sdb.common.Datum, edu.unh.sdb.datasource.IndexSpaceID, edu.unh.sdb.common.FieldIDMapper)

subblock

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

Description copied from class: DataCollection

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

Specified by:

subblock in interface Indexable

Specified by:

subblock in class DataCollection

See Also:

DataCollection.subblock(edu.unh.sdb.datasource.DataBlock, edu.unh.sdb.datasource.ISBounds, edu.unh.sdb.datasource.ISBounds)

subblock

public void subblock(DataBlock dstBlock,
                     ISBounds srcBounds,
                     FieldIDMapper fmap)

Description copied from class: DataCollection

Reads a subblock defined by srcBounds into the Datablock argument. If the size and shape of the DataBlock argument does not match the source bounds, the source bounds will be modified to match the destination shape and size, if there is enough data in the source; otherwise, only the portion of the destination is changed for which there is source data. Only the attributes identified by the FieldIDMapper are included. It is valid for the FieldIDMapper argument to be null; this specifies that all attributes are to be extracted.

Overrides:

subblock in class DataCollection

See Also:

edu.unh.sdb.datasource.DataCollection#subblock(edu.unh.sdb.common.DataBlock, edu.unh.sdb.datasource.ISBounds, edu.unh.sdb.datasource.FieldIDMapper)

subblock

public void subblock(DataBlock dstBlock,
                     ISBounds dstBounds,
                     ISBounds srcBounds,
                     FieldIDMapper fmap)

Description copied from class: DataCollection

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 this DataBlock and datums in the argument DataBlock. It is legal to pass a null for the FieldIDMapper argument which means that all attributes are to be extracted.

Specified by:

subblock in interface Indexable

Specified by:

subblock in class DataCollection

See Also:

edu.unh.sdb.datasource.DataCollection#subblock(edu.unh.sdb.common.DataBlock, edu.unh.sdb.datasource.ISBounds, edu.unh.sdb.datasource.FieldIDMapper)