Package com.cupoftea.io

Class DataFrameReader

java.lang.Object

com.cupoftea.io.DataFrameReader

public class DataFrameReader
extends Object

Fluent API for reading data frames from various formats. Example usage:

 CupOfTea df = CupOfTea.read().csv("data.csv");
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataFrameReader.FormatReaderSpec

Constructor Summary

Constructors

Constructor	Description
DataFrameReader()

Method Summary

Modifier and Type	Method	Description
CupOfTea	arrow(File file)
CupOfTea	arrow(String path)
CupOfTea	csv(File file)
CupOfTea	csv(File file, boolean hasHeaders)
CupOfTea	csv(File file, Object configuration)
CupOfTea	csv(String path)
<T> CupOfTea	dtos(Collection<T> dtos)
CupOfTea	excel(File file)
CupOfTea	excel(File file, boolean hasHeaders)
CupOfTea	excel(File file, Object configuration)
CupOfTea	excel(String path)
CupOfTea	excel(String path, boolean hasHeaders)
CupOfTea	feather(File file)
CupOfTea	feather(String path)
DataFrameReader.FormatReaderSpec	format(String format)
DataFrameReader	hasHeaders(boolean hasHeaders)
CupOfTea	html(File file)
CupOfTea	html(Object doc)
CupOfTea	html(String pathOrHtml)
CupOfTea	html(URL url)
CupOfTea	html(URL url, int timeoutMillis, int maxBodySizeBytes)
CupOfTea	json(File file)
CupOfTea	json(File file, Map<String,Class<?>> schema)
CupOfTea	json(Object source)
CupOfTea	json(String pathOrJson)
CupOfTea	json(String json, Map<String,Class<?>> schema)
DataFrameReader	option(String key, Object value)
DataFrameReader	options(Map<String,Object> options)
CupOfTea	parquet(File file)
CupOfTea	parquet(String path)
CupOfTea	read(String format, ReadOptions readOptions)
<T extends Record> CupOfTea	records(Collection<T> records)
DataFrameReader	schema(Schema schema)
DataFrameReader	schema(Map<String,Class<?>> schema)
CupOfTea	sql(Connection conn, String query)
CupOfTea	sql(ResultSet rs)
CupOfTea	sql(DataSource dataSource, String query)
CupOfTea	sqlTable(Connection conn, String tableName)
CupOfTea	sqlTable(DataSource dataSource, String tableName)
DataFrameReader	target(IDataFrame targetDataFrame)
CupOfTea	xml(File file)
CupOfTea	xml(Object doc)
CupOfTea	xml(String pathOrXml)
CupOfTea	yaml(File file)
CupOfTea	yaml(String pathOrYaml)

Methods inherited from class java.lang.Object

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

Constructor Details

DataFrameReader

public DataFrameReader()

Method Details

option

public DataFrameReader option(String key,
 Object value)

options

public DataFrameReader options(Map<String,Object> options)

schema

public DataFrameReader schema(Map<String,Class<?>> schema)

schema

public DataFrameReader schema(Schema schema)

hasHeaders

public DataFrameReader hasHeaders(boolean hasHeaders)

target

public DataFrameReader target(IDataFrame targetDataFrame)

read

public CupOfTea read(String format,
 ReadOptions readOptions)

csv

public CupOfTea csv(String path)

csv

public CupOfTea csv(File file)

csv

public CupOfTea csv(File file,
 boolean hasHeaders)

csv

public CupOfTea csv(File file,
 Object configuration)

json

public CupOfTea json(String pathOrJson)

json

public CupOfTea json(File file)

json

public CupOfTea json(File file,
 Map<String,Class<?>> schema)

json

public CupOfTea json(String json,
 Map<String,Class<?>> schema)

json

public CupOfTea json(Object source)

excel

public CupOfTea excel(String path)

excel

public CupOfTea excel(String path,
 boolean hasHeaders)

excel

public CupOfTea excel(File file)

excel

public CupOfTea excel(File file,
 boolean hasHeaders)

excel

public CupOfTea excel(File file,
 Object configuration)

parquet

public CupOfTea parquet(String path)

parquet

public CupOfTea parquet(File file)

arrow

public CupOfTea arrow(String path)

arrow

public CupOfTea arrow(File file)

feather

public CupOfTea feather(String path)

feather

public CupOfTea feather(File file)

sql

public CupOfTea sql(ResultSet rs)

sql

public CupOfTea sql(Connection conn,
 String query)

sql

public CupOfTea sql(DataSource dataSource,
 String query)

sqlTable

public CupOfTea sqlTable(Connection conn,
 String tableName)

sqlTable

public CupOfTea sqlTable(DataSource dataSource,
 String tableName)

html

public CupOfTea html(String pathOrHtml)

html

public CupOfTea html(File file)

html

public CupOfTea html(URL url)

html

public CupOfTea html(URL url,
 int timeoutMillis,
 int maxBodySizeBytes)

html

public CupOfTea html(Object doc)

yaml

public CupOfTea yaml(String pathOrYaml)

yaml

public CupOfTea yaml(File file)

xml

public CupOfTea xml(String pathOrXml)

xml

public CupOfTea xml(File file)

xml

public CupOfTea xml(Object doc)

dtos

public <T> CupOfTea dtos(Collection<T> dtos)

records

public <T extends Record> CupOfTea records(Collection<T> records)

format

public DataFrameReader.FormatReaderSpec format(String format)