edu.unh.sdb.datasource
Class DSThreadedPartitionedStencilIterator

java.lang.Object
  edu.unh.sdb.datasource.DataCollection
      edu.unh.sdb.datasource.DataBlock
          edu.unh.sdb.datasource.BasicBlock
              edu.unh.sdb.datasource.DSPartitionedStencilIterator
                  edu.unh.sdb.datasource.DSThreadedPartitionedStencilIterator

All Implemented Interfaces:

SDBIterator, Indexable

public class DSThreadedPartitionedStencilIterator
extends DSPartitionedStencilIterator

Nested Class Summary

protected class

DSThreadedPartitionedStencilIterator.IOThread

Field Summary

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

leastSignificantAxis, steps

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

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

Constructor Summary

DSThreadedPartitionedStencilIterator(DSPartitionedStencil stencil, DataSource ds)

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.
void	end() Advance the iterator to the last valid value in the iteration.
void	init() Perform any necessary initialization, and set the iterator value to the first value in the iteration.
protected void	load(int index)
boolean	next() Advance the iterator by one step.
void	setDatum(IndexSpaceID isid, Datum d) Set the location specified by the IndexSpaceID to the given datum.
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.
boolean	valid() Return true if the iterator currently has a valid value, false otherwise.

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

getStencil

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

copyData, copyData, copyData, datum, datum, datum, datum, datum, datum, getByte, getDouble, getDoubles, getFieldPos, getFloat, getFloats, getInt, getInts, getShort, getShorts, getValues, getValues, psubblock, setAttributeOrderRod, setBytes, setDoubles, setField, setField, setField, setField, setField, setField, setFloats, setFloats, setInts, setRod, setRod, setShorts, setValues, setValues, subblock, subblock, subblock

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

setByAttribute, setByte, setBytes, setBytesByAttribute, setBytesByPoint, setDouble, setDoubles, setDoublesByAttribute, setDoublesByPoint, setFloat, setFloats, setFloatsByAttribute, setFloatsByPoint, setInt, setInts, setIntsByAttribute, setIntsByPoint, setShort, setShorts, setShortsByAttribute, setShortsByPoint, 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, dim, getAxisOrdering, getAxisWeight, getAxisWeights, getBounds, getBytes, getBytes, getBytes, getBytes, getBytes, getBytes, getBytesByAttribute, getBytesByAttribute, getBytesByPoint, getBytesByPoint, getDataOrder, getDimensionsArray, getDoubles, getDoubles, getDoubles, getDoubles, getDoubles, getDoubles, getDoublesByAttribute, getDoublesByAttribute, getDoublesByPoint, getDoublesByPoint, getFloats, getFloats, getFloats, getFloats, getFloats, getFloats, getFloatsByAttribute, getFloatsByAttribute, getFloatsByPoint, getFloatsByPoint, getInts, getInts, getInts, getInts, getInts, getInts, getIntsByAttribute, getIntsByAttribute, getIntsByPoint, getIntsByPoint, getLowerBoundsArray, getNumAttributes, getRecordDescriptor, getShorts, getShorts, getShorts, getShorts, getShorts, getShorts, getShortsByAttribute, getShortsByAttribute, getShortsByPoint, getShortsByPoint, getStorageType, 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

DSThreadedPartitionedStencilIterator

public DSThreadedPartitionedStencilIterator(DSPartitionedStencil stencil,
                                            DataSource ds)

Method Detail

init

public void init()

Perform any necessary initialization, and set the iterator value to the first value in the iteration. If the stencil contains no elements, then the value of this iterator is undefined, but valid() will return false. However, activate() is still called on the underlying datasource.

Specified by:

init in interface SDBIterator

Overrides:

init in class DSPartitionedStencilIterator

next

public boolean next()

Advance the iterator by one step. If the iterator cannot be advanced to produce a valid value, the value of the iterator is undefined, but the next() method will return false, as will a subsequent call to valid().

Specified by:

next in interface SDBIterator

Overrides:

next in class DSPartitionedStencilIterator

valid

public boolean valid()

Return true if the iterator currently has a valid value, false otherwise.

Specified by:

valid in interface SDBIterator

Overrides:

valid in class DSPartitionedStencilIterator

end

public void end()

Advance the iterator to the last valid value in the iteration. (optional operation)

Specified by:

end in interface SDBIterator

Overrides:

end in class DSPartitionedStencilIterator

setDatum

public void setDatum(IndexSpaceID isid,
                     Datum d)

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

Overrides:

setDatum in class BasicBlock

datum

public void datum(Datum dtm,
                  IndexSpaceID did)

Given an IndexSpaceID, copy the values of the Datum at that position to the argument Datum.

Specified by:

datum in interface Indexable

Overrides:

datum in class BasicBlock

datum

public 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.

Specified by:

datum in interface Indexable

Overrides:

datum in class BasicBlock

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.

Specified by:

subblock in interface Indexable

Overrides:

subblock in class BasicBlock

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 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

Overrides:

subblock in class BasicBlock

load

protected void load(int index)