Package com.macrofocus.molap.dataframe

Class CPDataFrameFactory

java.lang.Object

com.macrofocus.molap.dataframe.AbstractDataFrameFactory

com.macrofocus.molap.dataframe.CPDataFrameFactory

All Implemented Interfaces:

DataFrameFactory

Direct Known Subclasses:

JavaDataFrameFactory

public class CPDataFrameFactory
extends AbstractDataFrameFactory

Nested Class Summary

Nested classes/interfaces inherited from interface com.macrofocus.molap.dataframe.DataFrameFactory

DataFrameFactory.Callback

Constructor Summary

Constructors

Constructor	Description
CPDataFrameFactory()

Method Summary

Modifier and Type	Method	Description
void	fromJson(java.lang.String url, DataFrameFactory.Callback callback)	Creates a data frame by loading a JSON encoded file.
MutableDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>	fromJSON(java.lang.String url)	Creates a data frame by loading a JSON encoded file.
MutableDataFrame<java.lang.Integer,java.lang.String,java.lang.Object>	fromJSON(java.net.URL url)	Creates a data frame by loading a JSON encoded file.
static <V> MutableDataFrame<java.lang.Integer,java.lang.String,V>	fromRowMajorArray(java.lang.String[] names, java.lang.Class[] classes, V[][] data)	Creates a data frame using a row-major two dimensional array.
static CPDataFrameFactory	getInstance()

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

createRandomDataFrame, fromColumnSeries, fromDataFrame, fromJsonString, fromJsonString, fromJsonValue

Methods inherited from class java.lang.Object

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

Constructor Detail

CPDataFrameFactory

public CPDataFrameFactory()

Method Detail

getInstance

public static CPDataFrameFactory getInstance()

fromRowMajorArray

public static <V> MutableDataFrame<java.lang.Integer,java.lang.String,V> fromRowMajorArray(java.lang.String[] names,
                                                                                                       java.lang.Class[] classes,
                                                                                                       V[][] data)

Creates a data frame using a row-major two dimensional array.

Type Parameters:

V - the type of values

Parameters:

names - the column names

classes - the type of values hold by each column

data - the data array

Returns:

a newly created data frame.

fromJson

public void fromJson(java.lang.String url,
                     DataFrameFactory.Callback callback)
              throws java.io.IOException

Description copied from interface: DataFrameFactory

Creates a data frame by loading a JSON encoded file.

Parameters:

url - the URL of the file

callback - call back method

Throws:

java.io.IOException

fromJSON

public MutableDataFrame<java.lang.Integer,java.lang.String,java.lang.Object> fromJSON(java.lang.String url)
                                                                                           throws java.io.IOException

Creates a data frame by loading a JSON encoded file. The macrofocus-data.jar library is required to use this method.

Parameters:

url - the URL of the file

Returns:

a newly created data frame

Throws:

java.io.IOException

fromJSON

public MutableDataFrame<java.lang.Integer,java.lang.String,java.lang.Object> fromJSON(java.net.URL url)
                                                                                           throws java.io.IOException

Creates a data frame by loading a JSON encoded file. The macrofocus-data.jar library is required to use this method.

Parameters:

url - the URL of the file

Returns:

a newly created data frame

Throws:

java.io.IOException