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1 package org.sapia.regis.forms;
2
3 import java.util.Map  ;
4
5 import org.sapia.regis.Node;
6 import org.sapia.regis.Property;
7 import org.sapia.regis.RWNode;
8 import org.sapia.regis.type.BuiltinType;
9
10 public class Field implements Comparable {
11
12 private BuiltinType type;
13 private String name;
14 private boolean mandatory;
15 private int displayOrder;
16
17 Field(BuiltinType type, String name){
18 this.type = type;
19 this.name = name;
20 }
21
22 public String getName(){
23 return name;
24 }
25
26 public BuiltinType getType(){
27 return type;
28 }
29
30 public void setMandatory(boolean mandatory){
31 this.mandatory = mandatory;
32 }
33
34 public boolean isMandatory(){
35 return mandatory;
36 }
37
38 public void set(RWNode instance, String value){
39 type.parse(value);
40 instance.setProperty(name, value);
41 }
42
43 public void set(RWNode instance, Object value){
44 if(!type.isAssignable(value)){
45 throw new IllegalArgumentException ("Cannot assign value for field: " + name +
46 "; expected value of type: " + type.getName());
47 }
48 instance.setProperty(name, type.toString(value));
49 }
50
51 public void set(RWNode instance, Map properties){
52 Object value = properties.get(name);
53 if(value == null && isMandatory()){
54 throw new IllegalStateException ("Property: " + name + " is mandatory");
55 }
56 if(value instanceof String ){
57 value = type.parse((String )value);
58 }
59 else if(!type.isAssignable(value)){
60 throw new IllegalArgumentException ("Cannot assign value for field: " + name +
61 "; expected value of type: " + type.getName());
62 }
63 instance.setProperty(name, type.toString(value));
64 }
65
66 public Object get(Node instance){
67 Property prop = instance.getProperty(name);
68 if(prop.isNull()) return null;
69 return type.parse(prop.getValue());
70 }
71
72 public int getDisplayOrder() {
73 return displayOrder;
74 }
75
76 public void setDisplayOrder(int displayOrder) {
77 this.displayOrder = displayOrder;
78 }
79
80 public int hashCode(){
81 return name.hashCode();
82 }
83
84 public boolean equals(Object o){
85 if(o instanceof Field){
86 return ((Field)o).getName().equals(name);
87 }
88 return o == this;
89 }
90
91 public int compareTo(Object f) {
92 return displayOrder - ((Field)f).getDisplayOrder();
93 }
94
95 }
96 |
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