DefaultRowSorter.ModelWrapper (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java™ Platform
Standard Ed. 6

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

javax.swing
Class DefaultRowSorter.ModelWrapper<M,I>

java.lang.Object
  javax.swing.DefaultRowSorter.ModelWrapper<M,I>


Type Parameters:: M - the type of the underlying model; I - the identifier supplied to the filter

Enclosing class:: DefaultRowSorter<M,I>

protected abstract static class DefaultRowSorter.ModelWrapper<M,I>
extends Object
extends Object

DefaultRowSorter.ModelWrapper is responsible for providing the data that gets sorted by DefaultRowSorter. You normally do not interact directly with ModelWrapper. Subclasses of DefaultRowSorter provide an implementation of ModelWrapper wrapping another model. For example, TableRowSorter provides a ModelWrapper that wraps a TableModel.

ModelWrapper makes a distinction between values as Objects and Strings. This allows implementations to provide a custom string converter to be used instead of invoking toString on the object.

Since:: 1.6
See Also:: RowFilter, RowFilter.Entry

Constructor Summary

protected DefaultRowSorter.ModelWrapper()
          Creates a new ModelWrapper.

Method Summary

abstract int getColumnCount()
          Returns the number of columns in the model.

abstract I getIdentifier(int row)
          Returns the identifier for the specified row.

abstract M getModel()
          Returns the underlying model that this Model is wrapping.

abstract int getRowCount()
          Returns the number of rows in the model.

String getStringValueAt(int row, int column)
          Returns the value as a String at the specified index.

abstract Object getValueAt(int row, int column)
          Returns the value at the specified index.

Methods inherited from class java.lang.Object

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

Constructor Summary
`protected`	`DefaultRowSorter.ModelWrapper()` Creates a new `ModelWrapper`.

Method Summary
`abstract int`	`getColumnCount()` Returns the number of columns in the model.
`abstract I`	`getIdentifier(int row)` Returns the identifier for the specified row.
`abstract M`	`getModel()` Returns the underlying model that this `Model` is wrapping.
`abstract int`	`getRowCount()` Returns the number of rows in the model.
`String`	`getStringValueAt(int row, int column)` Returns the value as a `String` at the specified index.
`abstract Object`	`getValueAt(int row, int column)` Returns the value at the specified index.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

DefaultRowSorter.ModelWrapper

protected DefaultRowSorter.ModelWrapper()

Creates a new ModelWrapper.

Method Detail

getModel

public abstract M getModel()

Returns the underlying model that this Model is wrapping.

Returns:: the underlying model

getColumnCount

public abstract int getColumnCount()

Returns the number of columns in the model.

Returns:: the number of columns in the model

getRowCount

public abstract int getRowCount()

Returns the number of rows in the model.

Returns:: the number of rows in the model

getValueAt

public abstract Object getValueAt(int row,
                                  int column)

Returns the value at the specified index.

Parameters:: row - the row index; column - the column index
Returns:: the value at the specified index
Throws:: IndexOutOfBoundsException - if the indices are outside the range of the model

getStringValueAt

public String getStringValueAt(int row,
                               int column)

Returns the value as a String at the specified index. This implementation uses toString on the result from getValueAt (making sure to return an empty string for null values). Subclasses that override this method should never return null.

Parameters:: row - the row index; column - the column index
Returns:: the value at the specified index as a String
Throws:: IndexOutOfBoundsException - if the indices are outside the range of the model

getIdentifier

public abstract I getIdentifier(int row)

Returns the identifier for the specified row. The return value of this is used as the identifier for the RowFilter.Entry that is passed to the RowFilter.

Parameters:: row - the row to return the identifier for, in terms of the underlying model
Returns:: the identifier
See Also:: RowFilter.Entry.getIdentifier()