001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.tide.data.model;
023
024 import java.io.Externalizable;
025 import java.io.IOException;
026 import java.io.ObjectInput;
027 import java.io.ObjectOutput;
028
029
030 public class PageInfo implements Externalizable {
031
032 private static final long serialVersionUID = 1L;
033
034 private int firstResult;
035 private int maxResults;
036 private SortInfo sortInfo;
037
038
039 public PageInfo() {
040 }
041
042 public PageInfo(int firstResult, int maxResults) {
043 this.firstResult = firstResult;
044 this.maxResults = maxResults;
045 this.sortInfo = null;
046 }
047
048 public PageInfo(int firstResult, int maxResults, String[] order, boolean[] desc) {
049 this.firstResult = firstResult;
050 this.maxResults = maxResults;
051 this.sortInfo = order != null && desc != null && order.length > 0 && desc.length > 0 ? new SortInfo(order, desc) : null;
052 }
053
054
055 public int getFirstResult() {
056 return firstResult;
057 }
058 public void setFirstResult(int firstResult) {
059 this.firstResult = firstResult;
060 }
061
062 public int getMaxResults() {
063 return maxResults;
064 }
065 public void setMaxResults(int maxResults) {
066 this.maxResults = maxResults;
067 }
068
069 public SortInfo getSortInfo() {
070 return sortInfo;
071 }
072 public void setSortInfo(SortInfo sortInfo) {
073 this.sortInfo = sortInfo;
074 }
075
076
077 public void writeExternal(ObjectOutput out) throws IOException {
078 out.writeObject(firstResult);
079 out.writeObject(maxResults);
080 out.writeObject(sortInfo != null ? sortInfo.getOrder() : null);
081 out.writeObject(sortInfo != null ? sortInfo.getDesc() : null);
082 }
083
084 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
085 firstResult = (Integer)in.readObject();
086 maxResults = (Integer)in.readObject();
087 Object[] oorder = (Object[])in.readObject();
088 Object[] odesc = (Object[])in.readObject();
089 if (oorder == null || odesc == null) {
090 sortInfo = null;
091 return;
092 }
093 String[] order = new String[oorder.length];
094 boolean[] desc = new boolean[oorder.length];
095 int i = 0;
096 for (Object o : oorder)
097 order[i++] = (String)o;
098 i = 0;
099 for (Object d : odesc)
100 desc[i++] = (Boolean)d;
101 sortInfo = new SortInfo(order, desc);
102 }
103
104 }