tech.bitey.dataframe

Interface DataFrame

All Superinterfaces:

Collection<Row>, Iterable<Row>, List<Row>, RandomAccess

All Known Implementing Classes:

DataFrameImpl

public interface DataFrame
extends List<Row>, RandomAccess

Field Summary

Fields

Modifier and Type	Field and Description
static int	BIG_ENDIAN_FLAG
static int	KEY_COLUMN_FLAG
static long	MAGIC_NUMBER
static int	NULLABILITY_FLAG
static int	SORTED_FLAG

Method Summary

Modifier and Type	Method and Description
DataFrame	append(DataFrame df)
DataFrame	append(DataFrame df, boolean coerce)
BooleanColumn	booleanColumn(int columnIndex)
BooleanColumn	booleanColumn(String columnName)
<T> Column<T>	column(int columnIndex)
<T> Column<T>	column(String columnName)
int	columnCount()
int	columnIndex(String columnName)
LinkedHashMap<String,Column<?>>	columnMap()
String	columnName(int columnIndex)
List<String>	columnNames()
List<Column<?>>	columns()
ColumnType	columnType(int columnIndex)
ColumnType	columnType(String columnName)
List<ColumnType>	columnTypes()
default Cursor	cursor()
Cursor	cursor(int index)
DateColumn	dateColumn(int columnIndex)
DateColumn	dateColumn(String columnName)
DateTimeColumn	dateTimeColumn(int columnIndex)
DateTimeColumn	dateTimeColumn(String columnName)
<T> Column<T>	deriveColumn(ColumnType type, Function<Row,T> function)
BooleanColumn	deriveColumn(Predicate<Row> function)
DoubleColumn	deriveColumn(ToDoubleFunction<Row> function)
FloatColumn	deriveColumn(ToFloatFunction<Row> function)
IntColumn	deriveColumn(ToIntFunction<Row> function)
LongColumn	deriveColumn(ToLongFunction<Row> function)
DoubleColumn	doubleColumn(int columnIndex)
DoubleColumn	doubleColumn(String columnName)
DataFrame	dropColumns(Collection<String> columnNames)
DataFrame	dropColumns(int... columnIndices)
DataFrame	dropColumns(String... columnNames)
default DataFrame	empty()
boolean	equals(DataFrame df, boolean dataOnly)
DataFrame	filter(Predicate<Row> criteria)
FloatColumn	floatColumn(int columnIndex)
FloatColumn	floatColumn(String columnName)
<T> T	get(int rowIndex, int columnIndex)
<T> T	get(int rowIndex, String columnName)
boolean	getBoolean(int rowIndex, int columnIndex)
boolean	getBoolean(int rowIndex, String columnName)
LocalDate	getDate(int rowIndex, int columnIndex)
LocalDate	getDate(int rowIndex, String columnName)
LocalDateTime	getDateTime(int rowIndex, int columnIndex)
LocalDateTime	getDateTime(int rowIndex, String columnName)
double	getDouble(int rowIndex, int columnIndex)
double	getDouble(int rowIndex, String columnName)
float	getFloat(int rowIndex, int columnIndex)
float	getFloat(int rowIndex, String columnName)
int	getInt(int rowIndex, int columnIndex)
int	getInt(int rowIndex, String columnName)
long	getLong(int rowIndex, int columnIndex)
long	getLong(int rowIndex, String columnName)
default double	getOrDefaultDouble(int rowIndex, int columnIndex, double defaultValue)
default double	getOrDefaultDouble(int rowIndex, String columnName, double defaultValue)
default float	getOrDefaultFloat(int rowIndex, int columnIndex, float defaultValue)
default float	getOrDefaultFloat(int rowIndex, String columnName, float defaultValue)
default int	getOrDefaultInt(int rowIndex, int columnIndex, int defaultValue)
default int	getOrDefaultInt(int rowIndex, String columnName, int defaultValue)
default long	getOrDefaultLong(int rowIndex, int columnIndex, long defaultValue)
default long	getOrDefaultLong(int rowIndex, String columnName, long defaultValue)
String	getString(int rowIndex, int columnIndex)
String	getString(int rowIndex, String columnName)
boolean	hasKeyColumn()
default DataFrame	head()
DataFrame	head(int count)
DataFrame	headTo(Object to)
IntColumn	intColumn(int columnIndex)
IntColumn	intColumn(String columnName)
boolean	isNull(int rowIndex, int columnIndex)
boolean	isNull(int rowIndex, String columnName)
DataFrame	join(DataFrame df)
DataFrame	joinHash(DataFrame df, String[] leftColumnNames, String[] rightColumnNames)
DataFrame	joinSingleIndex(DataFrame df, boolean leftIndex, String nonIndexColumnName)
DataFrame	joinSingleIndex(DataFrame df, String columnName)
Integer	keyColumnIndex()
String	keyColumnName()
ColumnType	keyColumnType()
DataFrame	leftJoinSingleIndex(DataFrame df, String columnName)
LongColumn	longColumn(int columnIndex)
LongColumn	longColumn(String columnName)
DataFrame	sampleN(int size)
DataFrame	sampleX(double proportion)
DataFrame	selectColumns(int... columnIndices)
DataFrame	selectColumns(List<String> columnNames)
DataFrame	selectColumns(String... columnNames)
default Spliterator<Row>	spliterator()
StringColumn	stringColumn(int columnIndex)
StringColumn	stringColumn(String columnName)
DataFrame	subFrame(int fromIndex, int toIndex)
DataFrame	subFrameByValue(Object from, Object to)
default DataFrame	tail()
DataFrame	tail(int count)
DataFrame	tailFrom(Object from)
<K,V> Map<K,V>	toMap(int columnIndex)
<K,V> Map<K,V>	toMap(String columnName)
DataFrame	withColumn(String columnName, Column<?> column)
DataFrame	withColumns(DataFrame df)
DataFrame	withColumns(LinkedHashMap<String,Column<?>> columns)
DataFrame	withColumns(String[] columnNames, Column<?>[] columns)
DataFrame	withKeyColumn(int columnIndex)
DataFrame	withKeyColumn(String columnName)
void	writeTo(File file)
int	yyyymmdd(int rowIndex, int columnIndex)
int	yyyymmdd(int rowIndex, String columnName)

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, size, sort, subList, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

MAGIC_NUMBER

static final long MAGIC_NUMBER

See Also:

Constant Field Values

BIG_ENDIAN_FLAG

static final int BIG_ENDIAN_FLAG

See Also:

Constant Field Values

NULLABILITY_FLAG

static final int NULLABILITY_FLAG

See Also:

Constant Field Values

SORTED_FLAG

static final int SORTED_FLAG

See Also:

Constant Field Values

KEY_COLUMN_FLAG

static final int KEY_COLUMN_FLAG

See Also:

Constant Field Values

Method Detail

equals

boolean equals(DataFrame df,
               boolean dataOnly)

spliterator

default Spliterator<Row> spliterator()

Specified by:

spliterator in interface Collection<Row>

Specified by:

spliterator in interface Iterable<Row>

Specified by:

spliterator in interface List<Row>

cursor

Cursor cursor(int index)

cursor

default Cursor cursor()

toMap

<K,V> Map<K,V> toMap(int columnIndex)

toMap

<K,V> Map<K,V> toMap(String columnName)

writeTo

void writeTo(File file)

hasKeyColumn

boolean hasKeyColumn()

keyColumnIndex

Integer keyColumnIndex()

keyColumnName

String keyColumnName()

keyColumnType

ColumnType keyColumnType()

withKeyColumn

DataFrame withKeyColumn(int columnIndex)

withKeyColumn

DataFrame withKeyColumn(String columnName)

columnCount

int columnCount()

columnIndex

int columnIndex(String columnName)

columnName

String columnName(int columnIndex)

columnType

ColumnType columnType(int columnIndex)

columnType

ColumnType columnType(String columnName)

columnMap

LinkedHashMap<String,Column<?>> columnMap()

columns

List<Column<?>> columns()

columnNames

List<String> columnNames()

columnTypes

List<ColumnType> columnTypes()

withColumn

DataFrame withColumn(String columnName,
                     Column<?> column)

withColumns

DataFrame withColumns(String[] columnNames,
                      Column<?>[] columns)

withColumns

DataFrame withColumns(LinkedHashMap<String,Column<?>> columns)

withColumns

DataFrame withColumns(DataFrame df)

selectColumns

DataFrame selectColumns(List<String> columnNames)

selectColumns

DataFrame selectColumns(String... columnNames)

selectColumns

DataFrame selectColumns(int... columnIndices)

dropColumns

DataFrame dropColumns(Collection<String> columnNames)

dropColumns

DataFrame dropColumns(String... columnNames)

dropColumns

DataFrame dropColumns(int... columnIndices)

column

<T> Column<T> column(int columnIndex)

stringColumn

StringColumn stringColumn(int columnIndex)

booleanColumn

BooleanColumn booleanColumn(int columnIndex)

intColumn

IntColumn intColumn(int columnIndex)

longColumn

LongColumn longColumn(int columnIndex)

doubleColumn

DoubleColumn doubleColumn(int columnIndex)

floatColumn

FloatColumn floatColumn(int columnIndex)

dateColumn

DateColumn dateColumn(int columnIndex)

dateTimeColumn

DateTimeColumn dateTimeColumn(int columnIndex)

column

<T> Column<T> column(String columnName)

stringColumn

StringColumn stringColumn(String columnName)

booleanColumn

BooleanColumn booleanColumn(String columnName)

intColumn

IntColumn intColumn(String columnName)

longColumn

LongColumn longColumn(String columnName)

doubleColumn

DoubleColumn doubleColumn(String columnName)

floatColumn

FloatColumn floatColumn(String columnName)

dateColumn

DateColumn dateColumn(String columnName)

dateTimeColumn

DateTimeColumn dateTimeColumn(String columnName)

deriveColumn

<T> Column<T> deriveColumn(ColumnType type,
                           Function<Row,T> function)

deriveColumn

IntColumn deriveColumn(ToIntFunction<Row> function)

deriveColumn

LongColumn deriveColumn(ToLongFunction<Row> function)

deriveColumn

DoubleColumn deriveColumn(ToDoubleFunction<Row> function)

deriveColumn

FloatColumn deriveColumn(ToFloatFunction<Row> function)

deriveColumn

BooleanColumn deriveColumn(Predicate<Row> function)

sampleN

DataFrame sampleN(int size)

sampleX

DataFrame sampleX(double proportion)

head

DataFrame head(int count)

empty

default DataFrame empty()

head

default DataFrame head()

tail

DataFrame tail(int count)

tail

default DataFrame tail()

subFrame

DataFrame subFrame(int fromIndex,
                   int toIndex)

headTo

DataFrame headTo(Object to)

tailFrom

DataFrame tailFrom(Object from)

subFrameByValue

DataFrame subFrameByValue(Object from,
                          Object to)

filter

DataFrame filter(Predicate<Row> criteria)

append

DataFrame append(DataFrame df)

append

DataFrame append(DataFrame df,
                 boolean coerce)

join

DataFrame join(DataFrame df)

joinSingleIndex

DataFrame joinSingleIndex(DataFrame df,
                          String columnName)

joinSingleIndex

DataFrame joinSingleIndex(DataFrame df,
                          boolean leftIndex,
                          String nonIndexColumnName)

leftJoinSingleIndex

DataFrame leftJoinSingleIndex(DataFrame df,
                              String columnName)

joinHash

DataFrame joinHash(DataFrame df,
                   String[] leftColumnNames,
                   String[] rightColumnNames)

isNull

boolean isNull(int rowIndex,
               int columnIndex)

isNull

boolean isNull(int rowIndex,
               String columnName)

get

<T> T get(int rowIndex,
          int columnIndex)

get

<T> T get(int rowIndex,
          String columnName)

getString

String getString(int rowIndex,
                 int columnIndex)

getString

String getString(int rowIndex,
                 String columnName)

getBoolean

boolean getBoolean(int rowIndex,
                   int columnIndex)

getBoolean

boolean getBoolean(int rowIndex,
                   String columnName)

getInt

int getInt(int rowIndex,
           int columnIndex)

getInt

int getInt(int rowIndex,
           String columnName)

getOrDefaultInt

default int getOrDefaultInt(int rowIndex,
                            int columnIndex,
                            int defaultValue)

getOrDefaultInt

default int getOrDefaultInt(int rowIndex,
                            String columnName,
                            int defaultValue)

getLong

long getLong(int rowIndex,
             int columnIndex)

getLong

long getLong(int rowIndex,
             String columnName)

getOrDefaultLong

default long getOrDefaultLong(int rowIndex,
                              int columnIndex,
                              long defaultValue)

getOrDefaultLong

default long getOrDefaultLong(int rowIndex,
                              String columnName,
                              long defaultValue)

getDouble

double getDouble(int rowIndex,
                 int columnIndex)

getDouble

double getDouble(int rowIndex,
                 String columnName)

getOrDefaultDouble

default double getOrDefaultDouble(int rowIndex,
                                  int columnIndex,
                                  double defaultValue)

getOrDefaultDouble

default double getOrDefaultDouble(int rowIndex,
                                  String columnName,
                                  double defaultValue)

getFloat

float getFloat(int rowIndex,
               int columnIndex)

getFloat

float getFloat(int rowIndex,
               String columnName)

getOrDefaultFloat

default float getOrDefaultFloat(int rowIndex,
                                int columnIndex,
                                float defaultValue)

getOrDefaultFloat

default float getOrDefaultFloat(int rowIndex,
                                String columnName,
                                float defaultValue)

getDate

LocalDate getDate(int rowIndex,
                  int columnIndex)

getDate

LocalDate getDate(int rowIndex,
                  String columnName)

yyyymmdd

int yyyymmdd(int rowIndex,
             int columnIndex)

yyyymmdd

int yyyymmdd(int rowIndex,
             String columnName)

getDateTime

LocalDateTime getDateTime(int rowIndex,
                          int columnIndex)

getDateTime

LocalDateTime getDateTime(int rowIndex,
                          String columnName)