org.datavec.api.transform.schema

Class Schema.Builder

java.lang.Object

org.datavec.api.transform.schema.Schema.Builder

Direct Known Subclasses:

SequenceSchema.Builder

Enclosing class:

Schema

public static class Schema.Builder
extends Object

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
Schema.Builder	addColumn(String name, ColumnMetaData metaData) Add a column
Schema.Builder	addColumnCategorical(String name, List<String> stateNames) Add a Categorical column, with the specified state names
Schema.Builder	addColumnCategorical(String name, String... stateNames) Add a Categorical column, with the specified state names
Schema.Builder	addColumnDouble(String name) Add a Double column with no restrictions on the allowable values, except for no NaN/infinite values allowed
Schema.Builder	addColumnDouble(String name, Double minAllowedValue, Double maxAllowedValue) Add a Double column with the specified restrictions (and no NaN/Infinite values allowed)
Schema.Builder	addColumnDouble(String name, Double minAllowedValue, Double maxAllowedValue, boolean allowNaN, boolean allowInfinite) Add a double column with the specified restrictions
Schema.Builder	addColumnInteger(String name) Add an integer column with no restrictions on the allowable values
Schema.Builder	addColumnInteger(String name, Integer minAllowedValue, Integer maxAllowedValue) Add an integer column with the specified min/max allowable values
Schema.Builder	addColumnLong(String name) Add a Long column, with no restrictions on the min/max values
Schema.Builder	addColumnLong(String name, Long minAllowedValue, Long maxAllowedValue) Add an Long column with the specified min/max allowable values
Schema.Builder	addColumnsDouble(String... columnNames) Add multiple columns with no restrictions on the allowable values of the columns (other than no NaN/Infinite)
Schema.Builder	addColumnsInteger(String... names) Add multiple Integer columns with no restrictions on the min/max allowable values
Schema.Builder	addColumnsLong(String... names) Add multiple long columns, with no restrictions on the allowable values
Schema.Builder	addColumnsString(String... columnNames) Add String columns with no restrictions on the allowable values
Schema.Builder	addColumnString(String name) Add a String column with no restrictions on the allowable values.
Schema.Builder	addColumnString(String name, String regex, Integer minAllowableLength, int maxAllowableLength) Add a String column with the specified restrictions
Schema.Builder	addColumnTime(String columnName, org.joda.time.DateTimeZone timeZone) Add a Time column with no restrictions on the min/max allowable times NOTE: Time columns are represented by LONG (epoch millisecond) values.
Schema.Builder	addColumnTime(String columnName, org.joda.time.DateTimeZone timeZone, Long minValidValue, Long maxValidValue) Add a Time column with the specified restrictions NOTE: Time columns are represented by LONG (epoch millisecond) values.
Schema.Builder	addColumnTime(String columnName, TimeZone timeZone) Add a Time column with no restrictions on the min/max allowable times NOTE: Time columns are represented by LONG (epoch millisecond) values.
Schema	build() Create the Schema

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Method Detail

addColumnDouble

public Schema.Builder addColumnDouble(String name)

Add a Double column with no restrictions on the allowable values, except for no NaN/infinite values allowed

Parameters:

name - Name of the column

addColumnDouble

public Schema.Builder addColumnDouble(String name,
                                      Double minAllowedValue,
                                      Double maxAllowedValue)

Add a Double column with the specified restrictions (and no NaN/Infinite values allowed)

Parameters:

name - Name of the column

minAllowedValue - Minimum allowed value (inclusive). If null: no restriction

maxAllowedValue - Maximum allowed value (inclusive). If null: no restriction

Returns:

addColumnDouble

public Schema.Builder addColumnDouble(String name,
                                      Double minAllowedValue,
                                      Double maxAllowedValue,
                                      boolean allowNaN,
                                      boolean allowInfinite)

Add a double column with the specified restrictions

Parameters:

name - Name of the column

minAllowedValue - Minimum allowed value (inclusive). If null: no restriction

maxAllowedValue - Maximum allowed value (inclusive). If null: no restriction

allowNaN - If false: don't allow NaN values. If true: allow.

allowInfinite - If false: don't allow infinite values. If true: allow

addColumnsDouble

public Schema.Builder addColumnsDouble(String... columnNames)

Add multiple columns with no restrictions on the allowable values of the columns (other than no NaN/Infinite)

Parameters:

columnNames - Names of the columns to add

addColumnInteger

public Schema.Builder addColumnInteger(String name)

Add an integer column with no restrictions on the allowable values

Parameters:

name - Name of the column

addColumnInteger

public Schema.Builder addColumnInteger(String name,
                                       Integer minAllowedValue,
                                       Integer maxAllowedValue)

Add an integer column with the specified min/max allowable values

Parameters:

name - Name of the column

minAllowedValue - Minimum allowed value (inclusive). If null: no restriction

maxAllowedValue - Maximum allowed value (inclusive). If null: no restriction

addColumnsInteger

public Schema.Builder addColumnsInteger(String... names)

Add multiple Integer columns with no restrictions on the min/max allowable values

Parameters:

names - Names of the integer columns to add

addColumnCategorical

public Schema.Builder addColumnCategorical(String name,
                                           String... stateNames)

Add a Categorical column, with the specified state names

Parameters:

name - Name of the column

stateNames - Names of the allowable states for this categorical column

addColumnCategorical

public Schema.Builder addColumnCategorical(String name,
                                           List<String> stateNames)

Add a Categorical column, with the specified state names

Parameters:

name - Name of the column

stateNames - Names of the allowable states for this categorical column

addColumnLong

public Schema.Builder addColumnLong(String name)

Add a Long column, with no restrictions on the min/max values

Parameters:

name - Name of the column

addColumnLong

public Schema.Builder addColumnLong(String name,
                                    Long minAllowedValue,
                                    Long maxAllowedValue)

Add an Long column with the specified min/max allowable values

Parameters:

name - Name of the column

minAllowedValue - Minimum allowed value (inclusive). If null: no restriction

maxAllowedValue - Maximum allowed value (inclusive). If null: no restriction

addColumnsLong

public Schema.Builder addColumnsLong(String... names)

Add multiple long columns, with no restrictions on the allowable values

Parameters:

names - Names of the Long columns to add

addColumn

public Schema.Builder addColumn(String name,
                                ColumnMetaData metaData)

Add a column

Parameters:

name - Name of the column

metaData - metadata for this column

addColumnString

public Schema.Builder addColumnString(String name)

Add a String column with no restrictions on the allowable values.

Parameters:

name - Name of the column

addColumnsString

public Schema.Builder addColumnsString(String... columnNames)

Add String columns with no restrictions on the allowable values

Parameters:

columnNames - Names of the String columns to add

addColumnString

public Schema.Builder addColumnString(String name,
                                      String regex,
                                      Integer minAllowableLength,
                                      int maxAllowableLength)

Add a String column with the specified restrictions

Parameters:

name - Name of the column

regex - Regex that the String must match in order to be considered value. If null: no regex restriction

minAllowableLength - Minimum allowable length for the String to be considered valid

maxAllowableLength - Maximum allowable length for the String to be considered valid

addColumnTime

public Schema.Builder addColumnTime(String columnName,
                                    TimeZone timeZone)

Add a Time column with no restrictions on the min/max allowable times NOTE: Time columns are represented by LONG (epoch millisecond) values. For time values in human-readable formats, use String columns + StringToTimeTransform

Parameters:

columnName - Name of the column

timeZone - Time zone of the time column

addColumnTime

public Schema.Builder addColumnTime(String columnName,
                                    org.joda.time.DateTimeZone timeZone)

Add a Time column with no restrictions on the min/max allowable times NOTE: Time columns are represented by LONG (epoch millisecond) values. For time values in human-readable formats, use String columns + StringToTimeTransform

Parameters:

columnName - Name of the column

timeZone - Time zone of the time column

addColumnTime

public Schema.Builder addColumnTime(String columnName,
                                    org.joda.time.DateTimeZone timeZone,
                                    Long minValidValue,
                                    Long maxValidValue)

Add a Time column with the specified restrictions NOTE: Time columns are represented by LONG (epoch millisecond) values. For time values in human-readable formats, use String columns + StringToTimeTransform

Parameters:

columnName - Name of the column

timeZone - Time zone of the time column

minValidValue - Minumum allowable time (in milliseconds). May be null.

maxValidValue - Maximum allowable time (in milliseconds). May be null.

build

public Schema build()

Create the Schema