Class HdfFileToLongList

java.lang.Object

io.nosqlbench.virtdata.library.hdf5.from_long.AbstractHdfFileToVectorType

io.nosqlbench.virtdata.library.hdf5.from_long.to_list.HdfFileToLongList

All Implemented Interfaces:

LongFunction<List<Long>>

public class HdfFileToLongList
extends AbstractHdfFileToVectorType
implements LongFunction<List<Long>>

This function reads a vector dataset from an HDF5 file. The dataset itself is not read into memory, only the metadata (the "dataset" Java Object). The lambda function reads a single vector from the dataset, based on the long input value. As currently written this class will only work for datasets with 2 dimensions where the 1st dimension specifies the number of vectors and the 2nd dimension specifies the number of elements in each vector. Only datatypes short, int, and float are supported at this time.

This implementation is specific to returning a List of Longs

Field Summary

Fields inherited from class io.nosqlbench.virtdata.library.hdf5.from_long.AbstractHdfFileToVectorType

dataset, dims, hdfFile

Constructor Summary

Constructors

Constructor	Description
HdfFileToLongList(String filename, String datasetName)

Method Summary

Modifier and Type	Method	Description
List<Long>	apply(long l)

Methods inherited from class io.nosqlbench.virtdata.library.hdf5.from_long.AbstractHdfFileToVectorType

getDataFrom

Methods inherited from class java.lang.Object

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

Constructor Details

HdfFileToLongList

public HdfFileToLongList(String filename,
 String datasetName)

Method Details

apply

public List<Long> apply(long l)

Specified by:

apply in interface LongFunction<List<Long>>