Package app.babylon.table.transform

Class TransformCoalesce

java.lang.Object

app.babylon.table.transform.TransformCoalesce

All Implemented Interfaces:

Transform, TransformToColumn

public class TransformCoalesce
extends Object
implements TransformToColumn

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FUNCTION_NAME

Method Summary

Modifier and Type	Method	Description
ColumnName[]	columnNames()
ColumnObject.Mode	effectiveMode()
protected Column[]	getColumns(Map<ColumnName,Column> columnsByName, Collection<ColumnName> x)
String	getName()
ColumnObject.Mode	mode()
ColumnName	newColumnName()
static TransformCoalesce	of(ColumnName newColumnName, ColumnObject.Mode mode, ColumnName firstColumnName, ColumnName... additionalColumnNames)
static TransformCoalesce	of(ColumnName newColumnName, ColumnObject.Mode mode, Iterable<ColumnName> sourceColumnNames)
static TransformCoalesce	of(String... params)	Deprecated, for removal: This API element is subject to removal in a future version. Use transform DSL through QuickTransforms, or typed factories with ColumnName.
ColumnName	outputColumnName()
protected void	putColumns(Map<ColumnName,Column> columnsByName, Column[] transformedColumns)
protected int	rowCount(Map<ColumnName,Column> columnsByName)
protected int	rowCount(Map<ColumnName,Column> columnsByName, Collection<ColumnName> columnNames)
Collection<ColumnName>	sourceColumnNames()
Column	transform(Map<ColumnName,Column> columnsByName, int rowCount)

Methods inherited from class java.lang.Object

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

Methods inherited from interface app.babylon.table.transform.Transform

apply, getName

Methods inherited from interface app.babylon.table.transform.TransformToColumn

apply, transform

Field Details

FUNCTION_NAME

public static final String FUNCTION_NAME

See Also:

• Constant Field Values

Method Details

of

@Deprecated(since="0.3.22",
            forRemoval=true)
public static TransformCoalesce of(String... params)

Deprecated, for removal: This API element is subject to removal in a future version.

Use transform DSL through QuickTransforms, or typed factories with ColumnName.

Creates a coalesce transform from the legacy registry parameter shape: output column, optional mode, then source column names.

of

public static TransformCoalesce of(ColumnName newColumnName,
 ColumnObject.Mode mode,
 ColumnName firstColumnName,
 ColumnName... additionalColumnNames)

of

public static TransformCoalesce of(ColumnName newColumnName,
 ColumnObject.Mode mode,
 Iterable<ColumnName> sourceColumnNames)

mode

public ColumnObject.Mode mode()

effectiveMode

public ColumnObject.Mode effectiveMode()

newColumnName

public ColumnName newColumnName()

columnNames

public ColumnName[] columnNames()

outputColumnName

public ColumnName outputColumnName()

Specified by:

outputColumnName in interface TransformToColumn

sourceColumnNames

public Collection<ColumnName> sourceColumnNames()

Specified by:

sourceColumnNames in interface TransformToColumn

transform

public Column transform(Map<ColumnName,Column> columnsByName,
 int rowCount)

Specified by:

transform in interface TransformToColumn

getName

public String getName()

Specified by:

getName in interface Transform

getColumns

protected Column[] getColumns(Map<ColumnName,Column> columnsByName,
 Collection<ColumnName> x)

putColumns

protected void putColumns(Map<ColumnName,Column> columnsByName,
 Column[] transformedColumns)

rowCount

protected int rowCount(Map<ColumnName,Column> columnsByName)

rowCount

protected int rowCount(Map<ColumnName,Column> columnsByName,
 Collection<ColumnName> columnNames)