Package org.eclipse.nebula.widgets.nattable.extension.glazedlists.hierarchical

Class HierarchicalWrapperSortModel

java.lang.Object

org.eclipse.nebula.widgets.nattable.extension.glazedlists.hierarchical.HierarchicalWrapperSortModel

All Implemented Interfaces:

ISortModel

public class HierarchicalWrapperSortModel
extends Object
implements ISortModel

ISortModel that is used to support sorting of HierarchicalWrapper in a SortedList. Internally uses the HierarchicalWrapperComparator to keep the tree structure while supporting dynamic column based sorting.

Since:

1.6

Constructor Summary

Constructors

Constructor	Description
HierarchicalWrapperSortModel(ca.odell.glazedlists.SortedList<HierarchicalWrapper> sortedList, IColumnAccessor<HierarchicalWrapper> columnAccessor, Map<Integer,List<Integer>> levelIndexMapping, DataLayer columnHeaderDataLayer, ConfigRegistry configRegistry)

Method Summary

Modifier and Type	Method	Description
void	clear()	Remove all sorting
Comparator<?>	getColumnComparator(int columnIndex)
List<Comparator>	getComparatorsForColumnIndex(int columnIndex)
SortDirectionEnum	getSortDirection(int columnIndex)
List<Integer>	getSortedColumnIndexes()
int	getSortOrder(int columnIndex)
boolean	isColumnIndexSorted(int columnIndex)
void	sort(int columnIndex, SortDirectionEnum sortDirection, boolean accumulate)	This method is called by the SortCommandHandler in response to a sort command.

Methods inherited from class java.lang.Object

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

Constructor Details

HierarchicalWrapperSortModel

public HierarchicalWrapperSortModel(ca.odell.glazedlists.SortedList<HierarchicalWrapper> sortedList,
 IColumnAccessor<HierarchicalWrapper> columnAccessor,
 Map<Integer,List<Integer>> levelIndexMapping,
 DataLayer columnHeaderDataLayer,
 ConfigRegistry configRegistry)

Parameters:

sortedList - The SortedList that should be sorted.

columnAccessor - The IColumnAccessor to access the data value for a specific column.

levelIndexMapping - The mapping from hierarchical level to column indexes for that level.

columnHeaderDataLayer - The DataLayer of the column header, needed to retrieve the configured Comparator.

configRegistry - The ConfigRegistry needed to evaluate the configured Comparator.

Method Details

getSortedColumnIndexes

public List<Integer> getSortedColumnIndexes()

Specified by:

getSortedColumnIndexes in interface ISortModel

Returns:

List of column indexes that are sorted.

isColumnIndexSorted

public boolean isColumnIndexSorted(int columnIndex)

Specified by:

isColumnIndexSorted in interface ISortModel

Parameters:

columnIndex - The column index to check.

Returns:

true if the column with the given index is sorted at the moment.

getSortDirection

public SortDirectionEnum getSortDirection(int columnIndex)

Specified by:

getSortDirection in interface ISortModel

Parameters:

columnIndex - The column index for which the sort direction is requested.

Returns:

the direction in which the column with the given index is currently sorted

getSortOrder

public int getSortOrder(int columnIndex)

Specified by:

getSortOrder in interface ISortModel

Parameters:

columnIndex - The column index for which the sort order is requested.

Returns:

when multiple columns are sorted, this returns the order of the column index in the sort

Example: If column indexes 3, 6, 9 are sorted (in that order) the sort order for index 6 is 1.

getComparatorsForColumnIndex

public List<Comparator> getComparatorsForColumnIndex(int columnIndex)

Specified by:

getComparatorsForColumnIndex in interface ISortModel

Parameters:

columnIndex - The index of the column for which the row objects should be sorted.

Returns:

The collection of Comparators used to sort row objects by column values.

getColumnComparator

public Comparator<?> getColumnComparator(int columnIndex)

Specified by:

getColumnComparator in interface ISortModel

Parameters:

columnIndex - The index of the column for which the Comparator is requested.

Returns:

The Comparator that is used for sorting the values of a specified column. Needed in case of data model wrapping, e.g. GroupBy

sort

public void sort(int columnIndex,
 SortDirectionEnum sortDirection,
 boolean accumulate)

Description copied from interface: ISortModel

This method is called by the SortCommandHandler in response to a sort command. It is responsible for sorting the requested column.

Specified by:

sort in interface ISortModel

Parameters:

columnIndex - The column index to sort.

sortDirection - The sort direction to apply.

accumulate - flag indicating if the column should added to a previous sort.

clear

public void clear()

Description copied from interface: ISortModel

Remove all sorting

Specified by:

clear in interface ISortModel