Package com.macrofocus.molap.dataframe

Class JsonDataFrame

java.lang.Object

com.macrofocus.molap.dataframe.AbstractDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

com.macrofocus.molap.dataframe.JsonDataFrame

All Implemented Interfaces:

DataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

public class JsonDataFrame
extends AbstractDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Nested Class Summary

Nested classes/interfaces inherited from class com.macrofocus.molap.dataframe.AbstractDataFrame

AbstractDataFrame.ColumnSeries

Constructor Summary

Constructors

Constructor	Description
JsonDataFrame(elemental.json.JsonArray array)
JsonDataFrame(java.lang.String json)

Method Summary

Modifier and Type	Method	Description
java.lang.Class	getColumnClass(java.lang.String column)	Returns the most specific superclass for all cell values in a column
int	getColumnCount()	Returns the number of columns contained by this data frame.
UniqueIndex<java.lang.String>	getColumnIndex()	Gets the index used to access the columns.
java.lang.String	getColumnName(java.lang.String column)	Returns the name of the column.
Series<java.lang.String,?>	getRow(java.lang.Integer integer)	Returns a series of all the values of a given row.
java.lang.Class	getRowClass(java.lang.Integer row)	Returns the most specific superclass for all cell values in a row.
int	getRowCount()	Returns the number of rows contained by the this data frame.
UniqueIndex<java.lang.Integer>	getRowIndex()	Gets the index used to access the rows.
java.lang.Object	getValueAt(java.lang.Integer row, java.lang.String column)	Returns the value for the cell at the intersection of the column key and row key.
DataFrame	join(Series series, java.lang.String[] strings)

Methods inherited from class com.macrofocus.molap.dataframe.AbstractDataFrame

addDataFrameListener, addWeakDataFrameListener, aggregate, aggregate, append, appendAndReindex, benchmark, columns, filter, getCentroid, getColumn, getColumnAddress, getColumnKey, getConstant, getCount, getCountDistinct, getCountDistinctWithNull, getCube, getDataFrameAggregation, getDistributiveStatistics, getFirst, getFirstQuartile, getMax, getMean, getMedian, getMin, getRandom, getRowAddress, getRowKey, getStatistics, getStdDev, getSum, getThirdQuartile, getUnivariateStatistics, getVariance, getVarianceByPopulation, getWeightedMean, getWeightedSum, notifyDataFrameChanged, orderRows, print, print, printSchema, reindexColumns, reindexRows, reindexRows, reindexRows, reindexRows, reindexRows, remapColumns, removeColumns, removeDataFrameListener, removeDataFrameListeners, removeDuplicates, rows

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonDataFrame

public JsonDataFrame(java.lang.String json)

JsonDataFrame

public JsonDataFrame(elemental.json.JsonArray array)

Method Detail

getColumnName

public java.lang.String getColumnName(java.lang.String column)

Description copied from interface: DataFrame

Returns the name of the column. This is a convenience method for labeling purpose.

Specified by:

getColumnName in interface DataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Overrides:

getColumnName in class AbstractDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Parameters:

column - the key of the column

Returns:

the name of the column

getColumnClass

public java.lang.Class getColumnClass(java.lang.String column)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a column

Parameters:

column - the key of the column

Returns:

the common ancestor class of the object values in the column.

getRowCount

public int getRowCount()

Description copied from interface: DataFrame

Returns the number of rows contained by the this data frame.

Specified by:

getRowCount in interface DataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Overrides:

getRowCount in class AbstractDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Returns:

the number of rows.

getColumnCount

public int getColumnCount()

Description copied from interface: DataFrame

Returns the number of columns contained by this data frame.

Specified by:

getColumnCount in interface DataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Overrides:

getColumnCount in class AbstractDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>

Returns:

the number of columns.

getRowClass

public java.lang.Class getRowClass(java.lang.Integer row)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a row.

Parameters:

row - the key of the row

Returns:

the common ancestor class of the object values in the row.

getValueAt

public java.lang.Object getValueAt(java.lang.Integer row,
                                   java.lang.String column)

Description copied from interface: DataFrame

Returns the value for the cell at the intersection of the column key and row key.

Parameters:

row - the row key whose value is to be queried

column - the column key whose value is to be queried

Returns:

the value Object at the specified cell

getRow

public Series<java.lang.String,?> getRow(java.lang.Integer integer)

Description copied from interface: DataFrame

Returns a series of all the values of a given row.

Parameters:

integer - the row key

Returns:

a Series object

join

public DataFrame join(Series series,
                      java.lang.String[] strings)

getRowIndex

public UniqueIndex<java.lang.Integer> getRowIndex()

Description copied from interface: DataFrame

Gets the index used to access the rows.

Returns:

the row index

getColumnIndex

public UniqueIndex<java.lang.String> getColumnIndex()

Description copied from interface: DataFrame

Gets the index used to access the columns.

Returns:

the column index