edu.unh.sdb.datasource
Class DSPartitionedStencilIterator

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

All Implemented Interfaces:

SDBIterator, Indexable

Direct Known Subclasses:

DSThreadedPartitionedStencilIterator

public class DSPartitionedStencilIterator
extends BasicBlock
implements SDBIterator

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

DSPartitionedStencilIterator(DSPartitionedStencil stencil, DataSource ds)

Method Summary

void	end() Advance the iterator to the last valid value in the iteration.
DSPartitionedStencil	getStencil() Return a reference to the stencil.
void	init() Perform any necessary initialization, and set the iterator value to the first value in the iteration.
boolean	next() Advance the iterator by one step.
boolean	valid() Return true if the iterator currently has a valid value, false otherwise.

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

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

DSPartitionedStencilIterator

public DSPartitionedStencilIterator(DSPartitionedStencil stencil,
                                    DataSource ds)

Method Detail

getStencil

public DSPartitionedStencil getStencil()

Return a reference to the stencil.

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

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

valid

public boolean valid()

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

Specified by:

valid in interface SDBIterator

end

public void end()

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

Specified by:

end in interface SDBIterator