Uses of Interface
org.datavec.api.records.reader.RecordReader

Packages that use RecordReader

Package	Description
org.datavec.api.formats.input
org.datavec.api.formats.input.impl
org.datavec.api.records.converter
org.datavec.api.records.listener
org.datavec.api.records.listener.impl
org.datavec.api.records.reader
org.datavec.api.records.reader.factory
org.datavec.api.records.reader.impl
org.datavec.api.records.reader.impl.collection
org.datavec.api.records.reader.impl.csv
org.datavec.api.records.reader.impl.filebatch
org.datavec.api.records.reader.impl.inmemory
org.datavec.api.records.reader.impl.jackson
org.datavec.api.records.reader.impl.misc
org.datavec.api.records.reader.impl.regex
org.datavec.api.records.reader.impl.transform
org.datavec.api.transform
org.datavec.api.vector

Uses of RecordReader in org.datavec.api.formats.input

Methods in org.datavec.api.formats.input that return RecordReader

Modifier and Type	Method and Description
RecordReader	BaseInputFormat.createReader(InputSplit split)
RecordReader	InputFormat.createReader(InputSplit split) Creates a reader from an input split
RecordReader	InputFormat.createReader(InputSplit split, Configuration conf) Creates a reader from an input split

Uses of RecordReader in org.datavec.api.formats.input.impl

Methods in org.datavec.api.formats.input.impl that return RecordReader

Modifier and Type	Method and Description
RecordReader	LineInputFormat.createReader(InputSplit split)
RecordReader	CSVInputFormat.createReader(InputSplit split)
RecordReader	ListStringInputFormat.createReader(InputSplit split) Creates a reader from an input split
RecordReader	SVMLightInputFormat.createReader(InputSplit split)
RecordReader	MatlabInputFormat.createReader(InputSplit split)
RecordReader	LineInputFormat.createReader(InputSplit split, Configuration conf)
RecordReader	CSVInputFormat.createReader(InputSplit split, Configuration conf)
RecordReader	ListStringInputFormat.createReader(InputSplit split, Configuration conf) Creates a reader from an input split
RecordReader	LibSvmInputFormat.createReader(InputSplit split, Configuration conf)
RecordReader	SVMLightInputFormat.createReader(InputSplit split, Configuration conf)
RecordReader	MatlabInputFormat.createReader(InputSplit split, Configuration conf)

Uses of RecordReader in org.datavec.api.records.converter

Methods in org.datavec.api.records.converter with parameters of type RecordReader

Modifier and Type	Method and Description
static void	RecordReaderConverter.convert(RecordReader reader, RecordWriter writer) Write all values from the specified record reader to the specified record writer.
static void	RecordReaderConverter.convert(RecordReader reader, RecordWriter writer, boolean closeOnCompletion) Write all values from the specified record reader to the specified record writer.

Uses of RecordReader in org.datavec.api.records.listener

Methods in org.datavec.api.records.listener with parameters of type RecordReader

Modifier and Type	Method and Description
void	RecordListener.recordRead(RecordReader reader, Object record) Event listener for each record to be read.

Uses of RecordReader in org.datavec.api.records.listener.impl

Methods in org.datavec.api.records.listener.impl with parameters of type RecordReader

Modifier and Type	Method and Description
void	LogRecordListener.recordRead(RecordReader reader, Object record)

Uses of RecordReader in org.datavec.api.records.reader

Subinterfaces of RecordReader in org.datavec.api.records.reader

Modifier and Type	Interface and Description
interface	SequenceRecordReader A sequence of records.

Classes in org.datavec.api.records.reader that implement RecordReader

Modifier and Type	Class and Description
class	BaseRecordReader Manages record listeners.

Uses of RecordReader in org.datavec.api.records.reader.factory

Methods in org.datavec.api.records.reader.factory that return RecordReader

Modifier and Type	Method and Description
RecordReader	RecordReaderFactory.create(URI uri) Creates instance of RecordReader

Uses of RecordReader in org.datavec.api.records.reader.impl

Classes in org.datavec.api.records.reader.impl that implement RecordReader

Modifier and Type	Class and Description
class	ComposableRecordReader RecordReader for each pipeline.
class	ConcatenatingRecordReader Combine multiple readers into a single reader.
class	FileRecordReader File reader/writer
class	LineRecordReader Reads files line by line

Constructors in org.datavec.api.records.reader.impl with parameters of type RecordReader

Constructor and Description
ComposableRecordReader(RecordReader... readers)
ConcatenatingRecordReader(RecordReader... readers)

Uses of RecordReader in org.datavec.api.records.reader.impl.collection

Classes in org.datavec.api.records.reader.impl.collection that implement RecordReader

Modifier and Type	Class and Description
class	CollectionRecordReader Collection record reader.
class	CollectionSequenceRecordReader Collection record reader for sequences.
class	ListStringRecordReader Iterates through a list of strings return a record.

Uses of RecordReader in org.datavec.api.records.reader.impl.csv

Classes in org.datavec.api.records.reader.impl.csv that implement RecordReader

Modifier and Type	Class and Description
class	CSVLineSequenceRecordReader CSVLineSequenceRecordReader: Used for loading univariance (single valued) sequences from a CSV, where each line in a CSV represents an independent sequence, and each sequence has exactly 1 value per time step. For example, a CSV file with content:
class	CSVMultiSequenceRecordReader CSVMultiSequenceRecordReader: Used to read CSV-format time series (sequence) data where there are multiple independent sequences in each file. The assumption is that each sequence is separated by some delimiter - for example, a blank line between sequences, or some other line that can be detected by a regex. Note that the number of columns (i.e., number of lines in the CSV per sequence) must be the same for all sequences. It supports 3 CSVMultiSequenceRecordReader.Modes: (a) CONCAT mode: the output is a univariate (single column) sequence with the values from all lines (b) EQUAL_LENGTH: Require that all lines have the exact same number of tokens (c) PAD: For any shorter lines (fewer tokens), a user-specified padding Writable value will be used to make them the same length as the other sequences Example: Input data:
class	CSVNLinesSequenceRecordReader A CSV Sequence record reader where: (a) all time series are in a single file (b) each time series is of the same length (specified in constructor) (c) no delimiter is used between time series For example, with nLinesPerSequence=10, lines 0 to 9 are the first time series, 10 to 19 are the second, and so on.
class	CSVRecordReader Simple csv record reader.
class	CSVRegexRecordReader A CSVRecordReader that can split each column into additional columns using regexs.
class	CSVSequenceRecordReader CSV Sequence Record Reader This reader is intended to read sequences of data in CSV format, where each sequence is defined in its own file (and there are multiple files) Each line in the file represents one time step
class	CSVVariableSlidingWindowRecordReader A sliding window of variable size across an entire CSV.

Uses of RecordReader in org.datavec.api.records.reader.impl.filebatch

Classes in org.datavec.api.records.reader.impl.filebatch that implement RecordReader

Modifier and Type	Class and Description
class	FileBatchRecordReader FileBatchRecordReader reads the files contained in a FileBatch using the specified RecordReader. Specifically, the record(URI, DataInputStream) method of the underlying reader is used to load files. For example, if the FileBatch was constructed using image files (png, jpg etc), FileBatchRecordReader could be used with ImageRecordReader.
class	FileBatchSequenceRecordReader FileBatchSequenceRecordReader reads the files contained in a FileBatch using the specified SequenceRecordReader. Specifically, the SequenceRecordReader.sequenceRecord(URI, DataInputStream) } method of the underlying sequence reader is used to load files. For example, if the FileBatch was constructed using csv sequence files (each file represents one example), FileBatchSequencRecordReader could be used with CSVSequenceRecordReader.

Constructors in org.datavec.api.records.reader.impl.filebatch with parameters of type RecordReader

Constructor and Description
FileBatchRecordReader(RecordReader rr, FileBatch fileBatch)

Uses of RecordReader in org.datavec.api.records.reader.impl.inmemory

Classes in org.datavec.api.records.reader.impl.inmemory that implement RecordReader

Modifier and Type	Class and Description
class	InMemoryRecordReader This is a RecordReader primarily meant for unit tests.
class	InMemorySequenceRecordReader This is a SequenceRecordReader primarily meant for unit tests.

Uses of RecordReader in org.datavec.api.records.reader.impl.jackson

Classes in org.datavec.api.records.reader.impl.jackson that implement RecordReader

Modifier and Type	Class and Description
class	JacksonLineRecordReader JacksonLineRecordReader will read a single file line-by-line when .next() is called.
class	JacksonLineSequenceRecordReader The sequence record reader version of JacksonLineRecordReader. Assumptions here: 1.
class	JacksonRecordReader RecordReader using Jackson. Design for this record reader: - Support for JSON, XML and YAML: one record per file only, via Jackson ObjectMapper: - JSON: new ObjectMapper(new JsonFactory()) - YAML: new ObjectMapper(new YAMLFactory()) (requires jackson-dataformat-yaml dependency) - XML: new ObjectMapper(new XmlFactory()) (requires jackson-dataformat-xml dependency) - User provides a list of fields to load, using FieldSelection.

Uses of RecordReader in org.datavec.api.records.reader.impl.misc

Classes in org.datavec.api.records.reader.impl.misc that implement RecordReader

Modifier and Type	Class and Description
class	LibSvmRecordReader Record reader for libsvm format, which is closely related to SVMLight format.
class	MatlabRecordReader Matlab record reader
class	SVMLightRecordReader Record reader for SVMLight format, which can generally be described as LABEL INDEX:VALUE INDEX:VALUE ...

Uses of RecordReader in org.datavec.api.records.reader.impl.regex

Classes in org.datavec.api.records.reader.impl.regex that implement RecordReader

Modifier and Type	Class and Description
class	RegexLineRecordReader RegexLineRecordReader: Read a file, one line at a time, and split it into fields using a regex.
class	RegexSequenceRecordReader RegexSequenceRecordReader: Read an entire file (as a sequence), one line at a time and split each line into fields using a regex.

Uses of RecordReader in org.datavec.api.records.reader.impl.transform

Classes in org.datavec.api.records.reader.impl.transform that implement RecordReader

Modifier and Type	Class and Description
class	TransformProcessRecordReader This wraps a RecordReader with a TransformProcess and allows every Record that is returned by the RecordReader to have a transform process applied before being returned.
class	TransformProcessSequenceRecordReader This wraps a SequenceRecordReader with a TransformProcess which will allow every Record returned from the SequenceRecordReader to be transformed before being returned.

Fields in org.datavec.api.records.reader.impl.transform declared as RecordReader

Modifier and Type	Field and Description
protected RecordReader	TransformProcessRecordReader.recordReader

Constructors in org.datavec.api.records.reader.impl.transform with parameters of type RecordReader

Constructor and Description
TransformProcessRecordReader(RecordReader recordReader, TransformProcess transformProcess)

Uses of RecordReader in org.datavec.api.transform

Methods in org.datavec.api.transform with parameters of type RecordReader

Modifier and Type	Method and Description
static List<String>	TransformProcess.inferCategories(RecordReader recordReader, int columnIndex) Infer the categories for the given record reader for a particular column Note that each "column index" is a column in the context of: List record = ...; record.get(columnIndex); Note that anything passed in as a column will be automatically converted to a string for categorical purposes.
static Map<Integer,List<String>>	TransformProcess.inferCategories(RecordReader recordReader, int[] columnIndices) Infer the categories for the given record reader for a particular set of columns (this is more efficient than TransformProcess.inferCategories(RecordReader, int) if you have more than one column you plan on inferring categories for) Note that each "column index" is a column in the context of: List record = ...; record.get(columnIndex); Note that anything passed in as a column will be automatically converted to a string for categorical purposes.

Uses of RecordReader in org.datavec.api.vector

Methods in org.datavec.api.vector with parameters of type RecordReader

Modifier and Type	Method and Description
void	Vectorizer.fit(RecordReader reader) Fit based on a record reader
void	Vectorizer.fit(RecordReader reader, Vectorizer.RecordCallBack callBack) Fit based on a record reader
VECTOR_TYPE	Vectorizer.fitTransform(RecordReader reader) Fit based on a record reader
VECTOR_TYPE	Vectorizer.fitTransform(RecordReader reader, Vectorizer.RecordCallBack callBack) Fit based on a record reader