org.mmbase.storage.search.implementation
Class BasicSortOrder

java.lang.Object
  org.mmbase.storage.search.implementation.BasicSortOrder

All Implemented Interfaces:

Serializable, SortOrder

Direct Known Subclasses:

BasicDateSortOrder

public class BasicSortOrder
extends Object
implements SortOrder, Serializable

Basic implementation.

Since:

MMBase-1.7

Version:

$Id: BasicSortOrder.java 41982 2010-04-20 14:05:14Z michiel $

Author:

Rob van Maris

See Also:

Serialized Form

Field Summary

protected boolean

modifiable

Fields inherited from interface org.mmbase.storage.search.SortOrder

ORDER_ASCENDING, ORDER_DESCENDING, ORDER_DESCRIPTIONS

Constructor Summary

BasicSortOrder(StepField field)
Constructor.

Method Summary

boolean	equals(Object obj) Compares this sortorder to the specified object.
int	getDirection() Gets the sort direction.
String	getDirectionDescription() Returns a description of the direction of the sort order
StepField	getField() Gets the associated field.
int	hashCode()
boolean	isCaseSensitive() Whether sorting must happen case sensitivily.
BasicSortOrder	setCaseSensitive(boolean c)
BasicSortOrder	setDirection(int direction) Sets direction.
void	setUnmodifiable()
String	toString() Returns a string representation of this SortOrder.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

modifiable

protected boolean modifiable

Constructor Detail

BasicSortOrder

public BasicSortOrder(StepField field)

Constructor. Creates new BasicSortOrder instance, with direction SortOrder.ORDER_ASCENDING.

Parameters:

field - The associated stepfield.

Throws:

IllegalArgumentException - when an invalid argument is supplied.

Method Detail

setUnmodifiable

public void setUnmodifiable()

Specified by:

setUnmodifiable in interface SortOrder

Since:

MMBase-1.9.2

setDirection

public BasicSortOrder setDirection(int direction)

Sets direction.

Parameters:

direction - The direction.

Returns:

This BasicSortOrder instance.

Throws:

IllegalArgumentException - when an invalid argument is supplied.

getField

public StepField getField()

Description copied from interface: SortOrder

Gets the associated field.

This corresponds to a fieldname in a "ORDER BY" clause in SQL SELECT-syntax.

Specified by:

getField in interface SortOrder

getDirection

public int getDirection()

Description copied from interface: SortOrder

Gets the sort direction. This is be either ORDER_ASCENDING or ORDER_DESCENDING.

This corresponds to the use of ASC and DESC in SQL SELECT-syntax.

Specified by:

getDirection in interface SortOrder

getDirectionDescription

public String getDirectionDescription()

Returns a description of the direction of the sort order

isCaseSensitive

public boolean isCaseSensitive()

Description copied from interface: SortOrder

Whether sorting must happen case sensitivily. If not, normally something like ordering on the uppercased field will happen.

Specified by:

isCaseSensitive in interface SortOrder

setCaseSensitive

public BasicSortOrder setCaseSensitive(boolean c)

Since:

MMBase-1.8

equals

public boolean equals(Object obj)

Description copied from interface: SortOrder

Compares this sortorder to the specified object. The result is true if and only if the argument is a non-null SortOrder object associated with the same field, using the same sort direction.

Specified by:

equals in interface SortOrder

Overrides:

equals in class Object

Parameters:

obj - The object to compare with.

Returns:

true if the objects are equal, false otherwise.

hashCode

public int hashCode()

Specified by:

hashCode in interface SortOrder

Overrides:

hashCode in class Object

toString

public String toString()

Description copied from interface: SortOrder

Returns a string representation of this SortOrder. The string representation has the form "SortOrder(field:<field>, dir:<dir>)" where

• <field> is the field alias returned by getField().getAlias()
• <dir> is the direction returned by getDirection()

Specified by:

toString in interface SortOrder

Overrides:

toString in class Object

Returns:

A string representation of this SortOrder.