de.unknownreality.dataframe.index.interval

Class IntervalIndex

java.lang.Object

de.unknownreality.dataframe.index.interval.IntervalIndex

All Implemented Interfaces:

Index

public class IntervalIndex
extends Object
implements Index

Constructor Summary

Constructors

Constructor and Description
IntervalIndex(String name, NumberColumn<?,?> startColumn, NumberColumn<?,?> endColumn)

Method Summary

Modifier and Type	Method and Description
void	clear() Clears this index
boolean	containsColumn(DataFrameColumn column) Returns true if this index contains the specified column
static IntervalIndex	create(DataFrame dataFrame, String name, String startColumn, String endColumn)
static IntervalIndex	create(String name, NumberColumn<?,?> startColumn, NumberColumn<?,?> endColumn)
Collection<Integer>	find(Comparable... values) Returns the row number for values used in this index
List<DataFrameColumn>	getColumns() Returns the columns used in this index
String	getName() Returns the name if this index
boolean	isUnique() Returns true if this index is unique
void	remove(DataRow dataRow) removes a DataRow from this index
void	replaceColumn(DataFrameColumn existing, DataFrameColumn replacement)
void	setUnique(boolean unique) set true if only unique values are allowed for this index
void	update(DataRow dataRow) updates a DataRow in this index

Methods inherited from class java.lang.Object

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

Constructor Detail

IntervalIndex

public IntervalIndex(String name,
                     NumberColumn<?,?> startColumn,
                     NumberColumn<?,?> endColumn)

Method Detail

create

public static IntervalIndex create(DataFrame dataFrame,
                                   String name,
                                   String startColumn,
                                   String endColumn)

create

public static IntervalIndex create(String name,
                                   NumberColumn<?,?> startColumn,
                                   NumberColumn<?,?> endColumn)

update

public void update(DataRow dataRow)

Description copied from interface: Index

updates a DataRow in this index

Specified by:

update in interface Index

Parameters:

dataRow - data row to update

remove

public void remove(DataRow dataRow)

Description copied from interface: Index

removes a DataRow from this index

Specified by:

remove in interface Index

Parameters:

dataRow - data row to remove

find

public Collection<Integer> find(Comparable... values)

Description copied from interface: Index

Returns the row number for values used in this index

Specified by:

find in interface Index

Parameters:

values - indexed row values

Returns:

index of row with the input value

getName

public String getName()

Description copied from interface: Index

Returns the name if this index

Specified by:

getName in interface Index

Returns:

name of index

setUnique

public void setUnique(boolean unique)

Description copied from interface: Index

set true if only unique values are allowed for this index

Specified by:

setUnique in interface Index

Parameters:

unique - allow only unique values

containsColumn

public boolean containsColumn(DataFrameColumn column)

Description copied from interface: Index

Returns true if this index contains the specified column

Specified by:

containsColumn in interface Index

Parameters:

column - column to tes t

Returns:

true if column is contained in this index

isUnique

public boolean isUnique()

Description copied from interface: Index

Returns true if this index is unique

Specified by:

isUnique in interface Index

Returns:

true if this index is unique

getColumns

public List<DataFrameColumn> getColumns()

Description copied from interface: Index

Returns the columns used in this index

Specified by:

getColumns in interface Index

Returns:

columns in this index

clear

public void clear()

Description copied from interface: Index

Clears this index

Specified by:

clear in interface Index

replaceColumn

public void replaceColumn(DataFrameColumn existing,
                          DataFrameColumn replacement)

Specified by:

replaceColumn in interface Index