# Class RowSorter.SortKey

java.lang.Object
javax.swing.RowSorter.SortKey

Enclosing class:
  `RowSorter<M>`

public static class RowSorter.SortKey extends Object
SortKey describes the sort order for a particular column. The column index is in terms of the underlying model, which may differ from that of the view.

Since:
  1.6

## Constructor Summary

Constructors
Constructor
Description
`SortKey(int column, SortOrder sortOrder)`
Creates a `SortKey` for the specified column with the specified sort order.

## Method Summary

Modifier and Type
Method
Description
`boolean`
`equals(Object o)`
Returns true if this object equals the specified object.
`final int`
`getColumn()`
Returns the index of the column.
`final SortOrder`
`getSortOrder()`
Returns the sort order of the column.
`int`
`hashCode()`
Returns the hash code for this `SortKey`.

### Methods declared in class Object

`clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

## Constructor Details

### SortKey

public SortKey(int column, SortOrder sortOrder)
Creates a `SortKey` for the specified column with the specified sort order.

Parameters:
  `column` - index of the column, in terms of the model
  `sortOrder` - the sorter order
Throws:
  `IllegalArgumentException` - if `sortOrder` is `null`

## Method Details

### getColumn

public final int getColumn()
Returns the index of the column.

Returns:
  index of column

### getSortOrder

public final SortOrder getSortOrder()
Returns the sort order of the column.

Returns:
  the sort order of the column

### hashCode

public int hashCode()
Returns the hash code for this `SortKey`.

Overrides:
  `hashCode` in class `Object`
Returns:
  hash code
See Also:
  - `Object.equals(java.lang.Object)`
  - `System.identityHashCode(Object)`

### equals

public boolean equals(Object o)
Returns true if this object equals the specified object. If the specified object is a `SortKey` and references the same column and sort order, the two objects are equal.

Overrides:
  `equals` in class `Object`
Parameters:
  `o` - the object to compare to
Returns:
  true if `o` is equal to this `SortKey`
See Also:
  - `Object.hashCode()`
  - `HashMap`