prefuse.data.util
Class FilteredRowManager

java.lang.Object
  prefuse.data.util.RowManager
      prefuse.data.util.FilteredRowManager

Direct Known Subclasses:

CascadedRowManager

public class FilteredRowManager
extends RowManager

RowManager that additionally manages mappings between the managed rows and those of a parent table.

Author:

jeffrey heer

Nested Class Summary

Nested classes/interfaces inherited from class prefuse.data.util.RowManager

RowManager.ColumnRowIterator, RowManager.RowIterator

Field Summary

protected IntColumn	m_childToParent
protected IntIntSortedMap	m_parentToChild

Fields inherited from class prefuse.data.util.RowManager

m_table

Constructor Summary

FilteredRowManager(Table table)
Create a new FilteredRowManager.

Method Summary

int	addRow(int parentRow) Add a new row backed by the given parent row.
void	clear() Clear the row manager status, marking all rows as available.
int	getChildRow(int parentRow) Given a row in the parent table, return the corresponding row managed by this manager.
int	getColumnRow(int row, int col) Given Table row and column indices, return the corresponding row in the underlying data column.
int	getParentRow(int childRow) Given a row managed by this manager, return the corresponding row in the parent table.
int	getTableRow(int columnRow, int col) Given a column row index and a table column index, return the table row corresponding to the column value.
void	put(int childRow, int parentRow) Add a mapping between the given managed row and parent row.
boolean	releaseRow(int row) Release a row and mark it as free.
void	remove(int childRow) Remove a mapping between the given managed row and the corresponding parent row.

Methods inherited from class prefuse.data.util.RowManager

addRow, columnRows, columnRows, columnRows, getMaximumRow, getMinimumRow, getRowCount, getTable, isValidRow, rows, rows

Methods inherited from class java.lang.Object

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

Field Detail

m_childToParent

protected IntColumn m_childToParent

m_parentToChild

protected IntIntSortedMap m_parentToChild

Constructor Detail

FilteredRowManager

public FilteredRowManager(Table table)

Create a new FilteredRowManager.

Parameters:

table - the table to manage

Method Detail

clear

public void clear()

Description copied from class: RowManager

Clear the row manager status, marking all rows as available.

Overrides:

clear in class RowManager

See Also:

RowManager.clear()

addRow

public int addRow(int parentRow)

Add a new row backed by the given parent row.

Parameters:

parentRow - the backing parent row

Returns:

the index of the newly added row

releaseRow

public boolean releaseRow(int row)

Description copied from class: RowManager

Release a row and mark it as free.

Overrides:

releaseRow in class RowManager

Parameters:

row - the row index of the released row

Returns:

true if the row was successfully released, false if it was already free or if the input is not a valid row index

See Also:

RowManager.releaseRow(int)

getColumnRow

public int getColumnRow(int row,
                        int col)

Description copied from class: RowManager

Given Table row and column indices, return the corresponding row in the underlying data column. This is of use for CascadedTable instances, which may reveal only a limited set of a parent table's rows and so must map between table rows and the actual indices of the inherited data columns.

Overrides:

getColumnRow in class RowManager

Parameters:

row - the table row

col - the table column

Returns:

the row value for accessing the correct value of the referenced data column.

See Also:

RowManager.getColumnRow(int, int)

getTableRow

public int getTableRow(int columnRow,
                       int col)

Description copied from class: RowManager

Given a column row index and a table column index, return the table row corresponding to the column value. This is of use for CascadedTable instances, which may reveal only a limited set of a parent table's rows and so must map between table rows and the actual indices of the inherited data columns.

Overrides:

getTableRow in class RowManager

Parameters:

columnRow - the row of the underlying data column

col - the table column

Returns:

the row value for the Table that corresponds to the given column row

See Also:

RowManager.getTableRow(int, int)

getParentRow

public int getParentRow(int childRow)

Given a row managed by this manager, return the corresponding row in the parent table.

Parameters:

childRow - a row managed by this manager

Returns:

the parent table row

getChildRow

public int getChildRow(int parentRow)

Given a row in the parent table, return the corresponding row managed by this manager.

Parameters:

parentRow - a row in the parent table

Returns:

the managed row corresponding to the parent row

put

public void put(int childRow,
                int parentRow)

Add a mapping between the given managed row and parent row.

Parameters:

childRow - a row managed by this manager

parentRow - a row in the parent table

remove

public void remove(int childRow)

Remove a mapping between the given managed row and the corresponding parent row.

Parameters:

childRow - a row managed by this manager