001    package org.granite.tide.data.model;
002    
003    import java.io.Externalizable;
004    import java.io.IOException;
005    import java.io.ObjectInput;
006    import java.io.ObjectOutput;
007    
008    
009    public class PageInfo implements Externalizable {
010            
011            private int firstResult;
012            private int maxResults;
013            private SortInfo sortInfo;
014            
015            
016            public PageInfo() {             
017            }
018            
019            public PageInfo(int firstResult, int maxResults, String[] order, boolean[] desc) {
020                    this.firstResult = firstResult;
021                    this.maxResults = maxResults;
022                    this.sortInfo = order != null && desc != null && order.length > 0 && desc.length > 0 ? new SortInfo(order, desc) : null;
023            }
024            
025            
026            public int getFirstResult() {
027                    return firstResult;
028            }
029            public void setFirstResult(int firstResult) {
030                    this.firstResult = firstResult;
031            }
032            
033            public int getMaxResults() {
034                    return maxResults;
035            }
036            public void setMaxResults(int maxResults) {
037                    this.maxResults = maxResults;
038            }
039            
040            public SortInfo getSortInfo() {
041                    return sortInfo;
042            }
043            public void setSortInfo(SortInfo sortInfo) {
044                    this.sortInfo = sortInfo;
045            }
046            
047    
048            public void writeExternal(ObjectOutput out) throws IOException {
049                    out.writeObject(firstResult);
050                    out.writeObject(maxResults);
051                    out.writeObject(sortInfo != null ? sortInfo.getOrder() : null);
052                    out.writeObject(sortInfo != null ? sortInfo.getDesc() : null);
053            }
054    
055            public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
056                    firstResult = (Integer)in.readObject();
057                    maxResults = (Integer)in.readObject();
058                    Object[] oorder = (Object[])in.readObject();
059                    Object[] odesc = (Object[])in.readObject();
060                    if (oorder == null || odesc == null) {
061                            sortInfo = null;
062                            return;
063                    }
064                    String[] order = new String[oorder.length];
065                    boolean[] desc = new boolean[oorder.length];
066                    int i = 0;
067                    for (Object o : oorder)
068                            order[i++] = (String)o;
069                    i = 0;
070                    for (Object d : odesc)
071                            desc[i++] = (Boolean)d;
072                    sortInfo = new SortInfo(order, desc);
073            }
074    
075    }