org.autoplot.datasource.RecordIterator

Introduce class to hold code for iterating through any dataset. This will detect the time series browse capability and streaming. So if the data source is already streaming, then this is trivial. If not, then it will request chunks of data from the time series browse and handle them one chunk at a time. And additional trim can be used, see constrainDepend0.

RecordIterator( String suri, DatumRange timeRange )

create a new RecordIterator for the given URI and time range.

RecordIterator( String suri, DatumRange timeRange, boolean allowStream )

create a new RecordIterator for the given URI and time range.

collect

collect( java.util.Iterator qds ) → QDataSet

do the opposite function, collect all the records and return a dataset.

Parameters

qds - a java.util.Iterator

Returns:

a QDataSet

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constrainDepend0

constrainDepend0( DatumRange dr ) → void

limit the data returned such that only data within the datum range provided are returned.

Parameters

dr - the timerange.

Returns:

void (returns nothing)

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hasNext

hasNext( ) → boolean

Returns:

boolean

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next

next( ) → QDataSet

Returns:

org.das2.qds.QDataSet

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remove

remove( ) → void

Returns:

void (returns nothing)

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resortFields

resortFields( int[] sort ) → void

get a subset or rearrange the fields of each record.

Parameters

sort - an int[]

Returns:

void (returns nothing)

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