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com.pjsofts.eurobudget.model
Class TxnTableSorter  view TxnTableSorter download TxnTableSorter.java

java.lang.Object
  extended byjavax.swing.table.AbstractTableModel
      extended bycom.pjsofts.eurobudget.model.TableMap
          extended bycom.pjsofts.eurobudget.model.TxnTableSorter
All Implemented Interfaces:
java.util.EventListener, java.io.Serializable, javax.swing.table.TableModel, javax.swing.event.TableModelListener

public class TxnTableSorter
extends TableMap

A sorter for TableModels. The sorter has a model (conforming to TableModel) and itself implements TableModel. TableSorter does not store or copy the data in the TableModel, instead it maintains an array of integers which it keeps the same size as the number of rows in its model. When the model changes it notifies the sorter that something has changed eg. "rowsAdded" so that its internal array of integers can be reallocated. As requests are made of the sorter (like getValueAt(row, col) it redirects them to its model via the mapping array. That way the TableSorter appears to hold another copy of the table with the rows in a different order. The sorting algorthm used is stable which means that it does not move around rows when its comparison function returns 0 to denote that they are equivalent.

Version:
1.5 12/17/97

Field Summary
private  boolean ascending
           
private  int compares
           
private  int[] indexes
           
private  java.util.Vector sortingColumns
           
 
Fields inherited from class com.pjsofts.eurobudget.model.TableMap
model
 
Fields inherited from class javax.swing.table.AbstractTableModel
listenerList
 
Constructor Summary
TxnTableSorter()
           
TxnTableSorter(javax.swing.table.TableModel model)
           
 
Method Summary
 void addMouseListenerToHeaderInTable(javax.swing.JTable table)
           
 void checkModel()
           
 int compare(int row1, int row2)
           
 int compareRowsByColumn(int row1, int row2, int column)
           
 java.lang.Object getValueAt(int aRow, int aColumn)
          Returns the value (Object) at a particular cell in the table.
 void n2sort()
           
 void reallocateIndexes()
           
 void setModel(javax.swing.table.TableModel model)
           
 void setValueAt(java.lang.Object aValue, int aRow, int aColumn)
          Sets the value of the given cell.
 void shuttlesort(int[] from, int[] to, int low, int high)
           
 void sort(java.lang.Object sender)
           
 void sortByColumn(int column)
           
 void sortByColumn(int column, boolean ascending)
           
 void swap(int i, int j)
           
 void tableChanged(javax.swing.event.TableModelEvent e)
          Called to notify the listener that the javax.swing.table.TableModel has been updated.
 
Methods inherited from class com.pjsofts.eurobudget.model.TableMap
getColumnClass, getColumnCount, getColumnName, getModel, getRowCount, isCellEditable
 
Methods inherited from class javax.swing.table.AbstractTableModel
addTableModelListener, findColumn, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, getListeners, getTableModelListeners, removeTableModelListener
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

indexes

private int[] indexes

sortingColumns

private java.util.Vector sortingColumns

ascending

private boolean ascending

compares

private int compares
Constructor Detail

TxnTableSorter

public TxnTableSorter()

TxnTableSorter

public TxnTableSorter(javax.swing.table.TableModel model)
Method Detail

setModel

public void setModel(javax.swing.table.TableModel model)
Overrides:
setModel in class TableMap

compareRowsByColumn

public int compareRowsByColumn(int row1,
                               int row2,
                               int column)

compare

public int compare(int row1,
                   int row2)

reallocateIndexes

public void reallocateIndexes()

tableChanged

public void tableChanged(javax.swing.event.TableModelEvent e)
Description copied from interface: javax.swing.event.TableModelListener
Called to notify the listener that the javax.swing.table.TableModel has been updated.

Specified by:
tableChanged in interface javax.swing.event.TableModelListener
Overrides:
tableChanged in class TableMap

checkModel

public void checkModel()

sort

public void sort(java.lang.Object sender)

n2sort

public void n2sort()

shuttlesort

public void shuttlesort(int[] from,
                        int[] to,
                        int low,
                        int high)

swap

public void swap(int i,
                 int j)

getValueAt

public java.lang.Object getValueAt(int aRow,
                                   int aColumn)
Description copied from interface: javax.swing.table.TableModel
Returns the value (Object) at a particular cell in the table.

Specified by:
getValueAt in interface javax.swing.table.TableModel
Overrides:
getValueAt in class TableMap

setValueAt

public void setValueAt(java.lang.Object aValue,
                       int aRow,
                       int aColumn)
Description copied from class: javax.swing.table.AbstractTableModel
Sets the value of the given cell. This implementation ignores all arguments and does nothing, subclasses should override the method if necessary.

Specified by:
setValueAt in interface javax.swing.table.TableModel
Overrides:
setValueAt in class TableMap

sortByColumn

public void sortByColumn(int column)

sortByColumn

public void sortByColumn(int column,
                         boolean ascending)

addMouseListenerToHeaderInTable

public void addMouseListenerToHeaderInTable(javax.swing.JTable table)