/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.mobile.device.rules.util.comparator;
import com.liferay.mobile.device.rules.model.MDRRuleGroupInstance;
import com.liferay.portal.kernel.util.OrderByComparator;
/**
* @author Edward Han
*/
public class RuleGroupInstancePriorityComparator
extends OrderByComparator<MDRRuleGroupInstance> {
public static final String ORDER_BY_ASC =
"MDRRuleGroupInstance.priority ASC";
public static final String ORDER_BY_DESC =
"MDRRuleGroupInstance.priority DESC";
public static final String[] ORDER_BY_FIELDS = {"priority"};
public RuleGroupInstancePriorityComparator() {
this(true);
}
public RuleGroupInstancePriorityComparator(boolean ascending) {
_ascending = ascending;
}
@Override
public int compare(
MDRRuleGroupInstance ruleGroupInstance1,
MDRRuleGroupInstance ruleGroupInstance2) {
int value =
ruleGroupInstance2.getPriority() - ruleGroupInstance1.getPriority();
if (_ascending) {
return value;
}
else {
return -value;
}
}
@Override
public String getOrderBy() {
if (_ascending) {
return ORDER_BY_ASC;
}
else {
return ORDER_BY_DESC;
}
}
@Override
public String[] getOrderByFields() {
return ORDER_BY_FIELDS;
}
@Override
public boolean isAscending() {
return _ascending;
}
private final boolean _ascending;
}