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Java > Open Source Codes > org > objectstyle > cayenne > dataview > dvmodeler > Lookup


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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22  * must include the following acknowlegement:
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24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
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53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
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56
57 package org.objectstyle.cayenne.dataview.dvmodeler;
58
59 import java.util.*;
60 import org.jdom.*;
61
62 /**
63  *
64  * @author Nataliya Kholodna
65  * @version 1.0
66  */
67
68 public class Lookup{
69   private ObjEntityViewField objEntityViewField;
70   private ObjEntityView lookupObjEntityView;//required
71 private ObjEntityViewField lookupField;//required
72
73   private List saveErrors = new ArrayList();
74
75   public Lookup(ObjEntityViewField objEntityViewField){
76     this.objEntityViewField = objEntityViewField;
77     lookupObjEntityView = null;
78     lookupField = null;
79   }
80
81   public List getSaveErrors(){
82     return Collections.unmodifiableList(saveErrors);
83   }
84
85   public boolean isEmpty(){
86     return (lookupField == null)&&(lookupObjEntityView == null);
87   }
88
89   public void setLookupObjEntityView(ObjEntityView view){
90     lookupObjEntityView = view;
91   }
92
93   public ObjEntityView getLookupObjEntityView(){
94     return lookupObjEntityView;
95   }
96
97
98   public void setLookupField(ObjEntityViewField field){
99     lookupField = field;
100   }
101
102   public ObjEntityViewField getLookupField(){
103     return lookupField;
104   }
105   public String JavaDoc toString(){
106     String JavaDoc resultString = "";
107     if (lookupObjEntityView != null){
108       resultString += lookupObjEntityView.getName();
109     }
110
111     if (lookupField != null ){
112       resultString += "." + lookupField.getName();
113     }else{
114       resultString += "";
115     }
116     return resultString;
117   }
118
119   public Element getLookupElement(){
120     Element e = new Element("lookup");
121     if (saveErrors.size() != 0){
122       saveErrors.clear();
123     }
124     ObjEntityView view = objEntityViewField.getObjEntityView();
125     DataView dataView = view.getDataView();
126     String JavaDoc fieldPath = "<b>" + dataView.getName() + "." + view.getName()
127                        + "." + objEntityViewField.getName() + "</b><br>";
128     if (lookupObjEntityView != null){
129       e.setAttribute(new Attribute("obj-entity-view-name", lookupObjEntityView.getName()));
130     }else {
131       e.setAttribute(new Attribute("obj-entity-view-name", ""));
132       saveErrors.add(fieldPath + "lookup hasn't attribute \"obj-entity-view-name\"<br><br>");
133     }
134     if (lookupField != null){
135       e.setAttribute(new Attribute("field-name", lookupField.getName()));
136     }else {
137       e.setAttribute(new Attribute("field-name", ""));
138       saveErrors.add(fieldPath + "lookup hasn't attribute \"field-name\"<br><br>");
139     }
140     e.addContent("");
141
142     return e;
143   }
144 }
145
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