Package app.babylon.table.transform

Class TransformCoalesce

java.lang.Object

app.babylon.table.transform.TransformCoalesce

All Implemented Interfaces:

Transform

public class TransformCoalesce
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FUNCTION_NAME

Method Summary

Modifier and Type	Method	Description
void	apply(Map<ColumnName,Column> columnsByName)
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.
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)

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

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()

apply

public void apply(Map<ColumnName,Column> columnsByName)

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)