com.bigdata.bop.solutions

Class SortOrder<E>

java.lang.Object

com.bigdata.bop.solutions.SortOrder<E>

All Implemented Interfaces:

ISortOrder<E>, Serializable

public class SortOrder<E>
extends Object
implements ISortOrder<E>

Default impl.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SortOrder(IValueExpression<E> expr, boolean asc)

Method Summary

Methods

Modifier and Type	Method and Description
IValueExpression<E>	getExpr() An IValueExpression to be evaluated for each input solution.
boolean	isAscending() true iff the values will be placed into an ascending sort and false if the values will be placed into a descending sort.
String	toString() Either ASC ( expr ) or DESC ( expr ).

Methods inherited from class java.lang.Object

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

Constructor Detail

SortOrder

public SortOrder(IValueExpression<E> expr,
         boolean asc)

Parameters:

expr - The value expression.

asc - true for an ascending sort and false for a descending sort.

Method Detail

toString

public String toString()

Either ASC ( expr ) or DESC ( expr ).

Overrides:

toString in class Object

getExpr

public IValueExpression<E> getExpr()

Description copied from interface: ISortOrder

An IValueExpression to be evaluated for each input solution. The IValueExpression should be either a bare IVariable, a IConstant or an IBind associating the computed value of an IValueExpression with an IVariable bound on the solution as a side-effect.

Specified by:

getExpr in interface ISortOrder<E>

isAscending

public boolean isAscending()

Description copied from interface: ISortOrder

true iff the values will be placed into an ascending sort and false if the values will be placed into a descending sort.

Specified by:

isAscending in interface ISortOrder<E>