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12 package com.versant.core.jdo.query;
13
14 import com.versant.core.metadata.FieldMetaData;
15 import com.versant.core.metadata.ClassMetaData;
16 import com.versant.core.common.Debug;
17 import com.versant.core.common.OID;
18
20 import javax.jdo.spi.PersistenceCapable;
21 import java.util.ArrayList  ;
22 import java.math.BigDecimal ;
23
24
26 public class Field implements Comparable {
27 public static final int TYPE_COLLECTION=1;
28 public static final int TYPE_ARRAY=2;
29 public static final int TYPE_STRING=3;
30 public static final int TYPE_PC=4;
31 public static final int TYPE_BOOLEAN=5;
32 public static final int TYPE_DECIMAL=6;
33 public static final int TYPE_CHAR=12;
34 public static final int TYPE_MAP=13;
35 public static final int TYPE_REF=14;
36 public static final int TYPE_TX=15;
37 public static final int TYPE_BOUND_VAR=16;
38 public static final int TYPE_UNBOUND_VAR=17;
39 public static final int TYPE_CAST=19;
40 public static final int TYPE_OBJECT=20;
41
43
44 public int type;
45 public FieldMetaData fieldMetaData;
46 public ClassMetaData classMetaData;
47 public PersistenceCapable pcValue;
48 public Object value;
50 public boolean bValue;
51 public BigDecimal dValue;
52 public String sValue;
53 public char cValue;
54 public ArrayList collection;
55 public String name;
56
57 public Field(FieldMetaData fieldMetaData) {
58 this.fieldMetaData = fieldMetaData;
59 }
60
61 public Field(int type) {
62 this.type = type;
63 }
64
65 public Field() {
66 }
67
68 public String getType(){
69 switch(type){
70 case TYPE_COLLECTION:
71 return "collection";
72 case TYPE_OBJECT:
73 return "object";
74 case TYPE_ARRAY:
77 return "array";
78 case TYPE_STRING:
79 return "string";
80 case TYPE_PC:
81 return "PersistenceCapable";
82 case TYPE_BOOLEAN:
83 return "boolean";
84 case TYPE_DECIMAL:
85 return "decimal";
86 case TYPE_CHAR:
87 return "char";
88 case TYPE_MAP:
89 return "map";
90 case TYPE_TX:
91 return "transactional";
92 case TYPE_REF:
93 return "reference";
94 case TYPE_UNBOUND_VAR:
95 return "unbound variable";
96 case TYPE_BOUND_VAR:
97 return "bound variable";
98 case TYPE_CAST:
99 return "cast";
100 default:
101 return null;
102 }
103 }
104
105 public Object getValue(){
106 switch(type){
107 case TYPE_MAP:
108 case TYPE_ARRAY:
109 case TYPE_TX:
110 case TYPE_REF:
111 case TYPE_CAST:
112 case TYPE_OBJECT:
113 return value;
114 case TYPE_PC:
117 return pcValue;
118 case TYPE_BOOLEAN:
119 return new Boolean (bValue);
120 case TYPE_DECIMAL:
121 return dValue;
122 case TYPE_CHAR:
123 return new Character (cValue);
124 case TYPE_STRING:
125 return sValue;
126 case TYPE_BOUND_VAR:
127 case TYPE_COLLECTION:
128 return collection;
129 default:
130 return null;
131 }
132 }
133 public String toString(){
134 StringBuffer buffer = new StringBuffer ();
135 buffer.append("Type = ");
136 buffer.append(getType());
137 buffer.append(" value = ");
138 switch(type){
139 case TYPE_MAP:
140 case TYPE_ARRAY:
141 case TYPE_TX:
142 case TYPE_REF:
143 case TYPE_CAST:
144 case TYPE_OBJECT:
145 buffer.append(value);
146 break;
147 case TYPE_PC:
148 buffer.append(pcValue);
149 case TYPE_BOOLEAN:
152 buffer.append(bValue);
153 break;
154 case TYPE_DECIMAL:
155 buffer.append(dValue);
156 break;
157 case TYPE_CHAR:
158 buffer.append(cValue);
159 break;
160 case TYPE_STRING:
161 buffer.append(sValue);
162 break;
163 case TYPE_BOUND_VAR:
164 case TYPE_COLLECTION:
165 buffer.append(collection);
166 default:
167 buffer.append(" --- ");
168 break;
169 }
170 buffer.append(" FieldMetaData = ");
171 buffer.append(fieldMetaData);
172 return buffer.toString();
173 }
174 public void dump(String indent){
175 if (Debug.DEBUG) {
176 Debug.OUT.println(indent+ this.toString());
177 }
178 }
179
180 public void clear(){
181 fieldMetaData = null;
182 collection = null;
183 classMetaData = null;
184 name = null;
185 dValue = null;
186 sValue = null;
187 pcValue = null;
188 }
190
191 public int compareTo(Object o) {
192 Comparable a = (Comparable )getValue();
193 Comparable b = null;
194 if(o instanceof Field){
195 b = (Comparable )((Field)o).getValue();
196 }else{
197 b = (Comparable )o;
198 }
199 if (a == null) {
200 a = "";
201 }
202 if (b == null) {
203 b = "";
204 }
205 return a.compareTo(b);
206 }
207
208
209 }
210 |
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