tfw.base.data.model

Class DataTable.RowComparator

java.lang.Object

tfw.base.data.model.DataTable.RowComparator

All Implemented Interfaces:

java.util.Comparator<java.util.Map<java.lang.String,java.io.Serializable>>

Enclosing class:

DataTable

private class DataTable.RowComparator
extends java.lang.Object
implements java.util.Comparator<java.util.Map<java.lang.String,java.io.Serializable>>

Row comparator, supports multi-column-sorting.

Author:

Typhoon.Free.Wolf

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Comparator<java.lang.Object>	cmpForColumn
private java.util.List<SelectorOrder>	listOrders

Constructor Summary

Constructors

Constructor and Description
RowComparator(java.util.List<SelectorOrder> listOrders, java.util.Comparator<java.lang.Object> cmpForText) Constructor.

Method Summary

Modifier and Type	Method and Description
int	compare(java.util.Map<java.lang.String,java.io.Serializable> mapRow1, java.util.Map<java.lang.String,java.io.Serializable> mapRow2) Compares the 2 given rows.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

cmpForColumn

private java.util.Comparator<java.lang.Object> cmpForColumn

listOrders

private java.util.List<SelectorOrder> listOrders

Constructor Detail

RowComparator

public RowComparator(java.util.List<SelectorOrder> listOrders,
                     java.util.Comparator<java.lang.Object> cmpForText)

Constructor.

Parameters:

listOrders - - Selector orders.

cmpForText - - Comparator for text columns.

Method Detail

compare

public int compare(java.util.Map<java.lang.String,java.io.Serializable> mapRow1,
                   java.util.Map<java.lang.String,java.io.Serializable> mapRow2)

Compares the 2 given rows.

Specified by:

compare in interface java.util.Comparator<java.util.Map<java.lang.String,java.io.Serializable>>

Parameters:

mapRow1 - - The first row to be compared.

mapRow2 - - The second row to be compared.

Returns:

A negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.