de.unknownreality.dataframe.gtf

Class GTFReaderBuilder

java.lang.Object

de.unknownreality.dataframe.gtf.GTFReaderBuilder

All Implemented Interfaces:

de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>

public class GTFReaderBuilder
extends Object
implements de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>

Created by Alex on 17.06.2017.

Constructor Summary

Constructors

Constructor and Description
GTFReaderBuilder()

Method Summary

Modifier and Type	Method and Description
GTFReader	build()
static GTFReaderBuilder	create()
de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>	loadSettings(Map<String,String> map)
de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>	selectColumn(String s)
GTFReaderBuilder	withAttribute(String name) Adds a String attribute field to the reader.
GTFReaderBuilder	withAttribute(String name, Class<? extends de.unknownreality.dataframe.DataFrameColumn> columnClass) Adds an attribute field with specified column type to the reader.
GTFReaderBuilder	withAttribute(String name, de.unknownreality.dataframe.DataFrameColumn column) Adds an attribute field with specified column type to the reader.
GTFReaderBuilder	withColumn(String name) Adds a column to the reader.
GTFReaderBuilder	withGTFField(GTFField field) Adds a GTF field to the reader.
GTFReaderBuilder	withPreFilter(de.unknownreality.dataframe.filter.FilterPredicate predicate)
GTFReaderBuilder	withPreFilter(String predicate)

Methods inherited from class java.lang.Object

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

Constructor Detail

GTFReaderBuilder

public GTFReaderBuilder()

Method Detail

create

public static GTFReaderBuilder create()

withGTFField

public GTFReaderBuilder withGTFField(GTFField field)

Adds a GTF field to the reader. If no GTF field is specified, all fields will be added to the dataframe

Parameters:

field - gtf field

Returns:

self for method chaining

withAttribute

public GTFReaderBuilder withAttribute(String name,
                                      de.unknownreality.dataframe.DataFrameColumn column)

Adds an attribute field with specified column type to the reader.

Parameters:

name - attribute name

column - attribute column

Returns:

self for method chaining

withAttribute

public GTFReaderBuilder withAttribute(String name,
                                      Class<? extends de.unknownreality.dataframe.DataFrameColumn> columnClass)

Adds an attribute field with specified column type to the reader.

Parameters:

name - attribute name

columnClass - attribute column type

Returns:

self for method chaining

withAttribute

public GTFReaderBuilder withAttribute(String name)

Adds a String attribute field to the reader.

Parameters:

name - attribute name

Returns:

self for method chaining

withColumn

public GTFReaderBuilder withColumn(String name)

Adds a column to the reader. If the column name matches a GTF field, the field is added. Otherwise an attribute is added to the reader

Parameters:

name - column name

Returns:

self for method chaining

withPreFilter

public GTFReaderBuilder withPreFilter(String predicate)

withPreFilter

public GTFReaderBuilder withPreFilter(de.unknownreality.dataframe.filter.FilterPredicate predicate)

build

public GTFReader build()

Specified by:

build in interface de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>

loadSettings

public de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader> loadSettings(Map<String,String> map)
                                                                            throws Exception

Specified by:

loadSettings in interface de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>

Throws:

Exception

selectColumn

public de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader> selectColumn(String s)

Specified by:

selectColumn in interface de.unknownreality.dataframe.io.ReaderBuilder<GTFRow,GTFReader>