| java.lang.Object
 prefuse.data.util.RowManager
All known Subclasses: prefuse.data.util.FilteredRowManager,
| RowManager | | public class RowManager (Code) | | Manages the set of valid rows for a Table instance, maintains an index of
the available and occupied rows. RowManager instances are used internally
by Table instances.
author:
jeffrey heer |
| Inner Class :public class RowIterator extends IntIterator | |
| Inner Class :public class ColumnRowIterator extends IntIterator | |
| Constructor Summary | |
| public | RowManager(Table table)
Create a new RowManager for the given Table. |
| Method Summary | |
| public int | addRow()
Add a new row to management. | | public void | clear()
Clear the row manager status, marking all rows as available. | | public IntIterator | columnRows(int col)
Return an iterator over column row indices. | | public IntIterator | columnRows(int col, boolean reverse)
Return an iterator over column row indices. | | public IntIterator | columnRows(IntIterator rows, int col)
Return an iterator over column row indices. | | public int | getColumnRow(int row, int col)
Given Table row and column indices, return the corresponding row in
the underlying data column. | | public int | getMaximumRow()
Get the highest-numbered occupied table row. | | public int | getMinimumRow()
Get the lowest-numbered occupied table row. | | public int | getRowCount()
| | public Table | getTable()
Get the table managed by this RowManager. | | public 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. | | public boolean | isValidRow(int row)
Indicates if a given row value is a valid, occupied row of the table. | | public boolean | releaseRow(int row)
Release a row and mark it as free. | | public IntIterator | rows()
Get an iterator over the table rows. | | public IntIterator | rows(boolean reverse)
Get an iterator over the table rows. |
| RowManager | | public RowManager(Table table)(Code) | | Create a new RowManager for the given Table.
Parameters:
table - the Table to manage |
| addRow | | public int addRow()(Code) | | Add a new row to management. The lowest valued available row
will be used.
the row index of the newly added row |
| clear | | public void clear()(Code) | | Clear the row manager status, marking all rows as available.
|
| columnRows | | public IntIterator columnRows(int col)(Code) | | Return an iterator over column row indices.
Parameters:
col - the table column index an iterator over column row indices correspondingto valid rows of this RowManager |
| columnRows | | public IntIterator columnRows(int col, boolean reverse)(Code) | | Return an iterator over column row indices.
Parameters:
col - the table column index
Parameters:
reverse - indicates the direction to iterate over, truefor reverse, false for normal an iterator over column row indices correspondingto valid rows of this RowManager |
| columnRows | | public IntIterator columnRows(IntIterator rows, int col)(Code) | | Return an iterator over column row indices.
Parameters:
rows - an iterator over table row indices
Parameters:
col - the table column index an iterator over column row indices correspondingto valid rows of this RowManager |
| getColumnRow | | public int getColumnRow(int row, int col)(Code) | | 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.
Parameters:
row - the table row
Parameters:
col - the table column the row value for accessing the correct value of thereferenced data column. |
| getMaximumRow | | public int getMaximumRow()(Code) | | Get the highest-numbered occupied table row.
the maximum row |
| getMinimumRow | | public int getMinimumRow()(Code) | | Get the lowest-numbered occupied table row.
the minimum row |
| getRowCount | | public int getRowCount()(Code) | | Get the total number of occupied rows
the number of rows being used by the table |
| getTable | | public Table getTable()(Code) | | Get the table managed by this RowManager.
the managed table |
| getTableRow | | public int getTableRow(int columnRow, int col)(Code) | | 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.
Parameters:
columnRow - the row of the underlying data column
Parameters:
col - the table column the row value for the Table that corresponds to thegiven column row |
| isValidRow | | public boolean isValidRow(int row)(Code) | | Indicates if a given row value is a valid, occupied row of the table.
Parameters:
row - the row index to check true if the row is valid and in use by the Table, false ifit is an illegal value or is currently free |
| releaseRow | | public boolean releaseRow(int row)(Code) | | Release a row and mark it as free.
Parameters:
row - the row index of the released row true if the row was successfully released, false if itwas already free or if the input is not a valid row index |
| rows | | public IntIterator rows()(Code) | | Get an iterator over the table rows.
an iterator over the table rows |
| rows | | public IntIterator rows(boolean reverse)(Code) | | Get an iterator over the table rows.
Parameters:
reverse - indicates the direction to iterate over, truefor reverse, false for normal an iterator over the table rows |
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