de.unknownreality.dataframe

Class DataFrameBuilder

java.lang.Object

de.unknownreality.dataframe.DataFrameBuilder

public class DataFrameBuilder
extends Object

Created by Alex on 09.03.2016.

Method Summary

Modifier and Type	Method and Description
DataFrameBuilder	addColumn(DataFrameColumn column) Adds a new column to the builder.
DataFrameBuilder	addColumn(String header, DataFrameColumn column) Adds a new column to the builder and defines the name of the column in the parent data container.
DataFrame	build() Builds the data frame using the parent data container and column information.
static DataFrameBuilder	create(DataContainer dataContainer) Creates a data frame builder instance based on a parent data container.
DataFrameBuilder	withFilterPredicate(FilterPredicate predicate)

Methods inherited from class java.lang.Object

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

Method Detail

create

public static DataFrameBuilder create(DataContainer dataContainer)

Creates a data frame builder instance based on a parent data container.

Parameters:

dataContainer - parent data container

Returns:

data frame builder

addColumn

public DataFrameBuilder addColumn(DataFrameColumn column)

Adds a new column to the builder.

Parameters:

column - data frame column

Returns:

self for method chaining

withFilterPredicate

public DataFrameBuilder withFilterPredicate(FilterPredicate predicate)

addColumn

public DataFrameBuilder addColumn(String header,
                                  DataFrameColumn column)

Adds a new column to the builder and defines the name of the column in the parent data container.

Parameters:

header - column name in the parent data container

column - data frame column

Returns:

self for method chaining

build

public DataFrame build()

Builds the data frame using the parent data container and column information.

Returns:

created data frame

See Also:

DataFrameConverter.fromDataContainer(DataContainer, Map, FilterPredicate)