/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.persistence.query;
import java.io.Serializable;
import java.util.Arrays;
import java.util.HashSet;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
@XmlRootElement(name = "sort")
@XmlAccessorType(XmlAccessType.PROPERTY)
public class Sort implements Serializable {
private HashSet<SortField> fieldSet;
public Sort () {
}
public Sort (SortField... fields) {
fieldSet = new HashSet<>(Arrays.asList(fields));
}
public static Sort instance (SortField... fields) {
return new Sort(fields);
}
@XmlTransient
public synchronized boolean isEmpty () {
return (fieldSet == null) || fieldSet.isEmpty();
}
@XmlElement(name = "fields")
public synchronized SortField[] getFields () {
SortField[] fields = new SortField[fieldSet == null ? 0 : fieldSet.size()];
if (fieldSet != null) {
fieldSet.toArray(fields);
}
return fields;
}
public synchronized void setFields (SortField... fields) {
this.fieldSet = new HashSet<>(Arrays.asList(fields));
}
}