/**
* 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.dynamic.data.lists.util.comparator;
import com.liferay.dynamic.data.lists.model.DDLRecord;
import com.liferay.portal.kernel.util.OrderByComparator;
/**
* Used to order records according their IDs during listing operations. The
* order can be ascending or descending and is defined by the value specified in
* the class constructor.
*
* @author Leonardo Barros
* @see com.liferay.dynamic.data.lists.service.DDLRecordLocalService#getRecords(
* long, int, int, int, OrderByComparator)
*/
public class DDLRecordIdComparator extends OrderByComparator<DDLRecord> {
public static final String ORDER_BY_ASC = "DDLRecord.recordId ASC";
public static final String ORDER_BY_DESC = "DDLRecord.recordId DESC";
public static final String[] ORDER_BY_FIELDS = {"recordId"};
public DDLRecordIdComparator() {
this(false);
}
public DDLRecordIdComparator(boolean ascending) {
_ascending = ascending;
}
@Override
public int compare(DDLRecord record1, DDLRecord record2) {
int value = Long.compare(record1.getRecordId(), record2.getRecordId());
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;
}