Package org.openrefine.history.dag

Class ReorderSlice

java.lang.Object

org.openrefine.history.dag.ReorderSlice

All Implemented Interfaces:

DagSlice

public class ReorderSlice
extends Object
implements DagSlice

A slice where columns can be reordered (including removing columns) and renamed in one go.

Constructor Summary

Constructors

Constructor	Description
ReorderSlice(List<String> reorderedColumns, Map<String,String> renames)	Constructs a reordering slice.

Method Summary

Modifier and Type	Method	Description
ColumnModel	applyToColumns(ColumnModel columns)	Given the list of columns before the change, return the list of columns after the slice.
boolean	equals(Object other)
Map<String,String>	getRenames()
List<String>	getReorderedColumns()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ReorderSlice

public ReorderSlice(List<String> reorderedColumns,
                    Map<String,String> renames)

Constructs a reordering slice.

Parameters:

reorderedColumns - the list of column names after reordering, but before renaming

renames - the column renames, as a map from old names to new names

Method Detail

applyToColumns

public ColumnModel applyToColumns(ColumnModel columns)
                           throws IncompatibleSliceException

Description copied from interface: DagSlice

Given the list of columns before the change, return the list of columns after the slice.

Specified by:

applyToColumns in interface DagSlice

Parameters:

columns - the column metadata before the change, in project order

Returns:

the column metadata after the change

Throws:

IncompatibleSliceException

getReorderedColumns

public List<String> getReorderedColumns()

Returns:

the list of column names after reordering, but before renaming

getRenames

public Map<String,String> getRenames()

Returns:

the column renames, as a map from old names to new names

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object