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1 package org.hibernate.mapping;
3
4 import java.io.Serializable  ;
5
6 import org.hibernate.HibernateException;
7 import org.hibernate.MappingException;
8 import org.hibernate.dialect.Dialect;
9 import org.hibernate.engine.Mapping;
10 import org.hibernate.util.StringHelper;
11
12
16 public class Column implements Selectable, Serializable {
17
18 public static final int DEFAULT_LENGTH = 255;
19 public static final int DEFAULT_PRECISION = 19;
20 public static final int DEFAULT_SCALE = 2;
21
22 private int length=DEFAULT_LENGTH;
23 private int precision=DEFAULT_PRECISION;
24 private int scale=DEFAULT_SCALE;
25 private Value value;
26 private int typeIndex = 0;
27 private String name;
28 private boolean nullable=true;
29 private boolean unique=false;
30 private String sqlType;
31 private Integer sqlTypeCode;
32 private boolean quoted=false;
33 int uniqueInteger;
34 private String checkConstraint;
35 private String comment;
36
37 public Column() { };
38
39 public Column(String columnName) {
40 setName(columnName);
41 }
42
43 public int getLength() {
44 return length;
45 }
46 public void setLength(int length) {
47 this.length = length;
48 }
49 public Value getValue() {
50 return value;
51 }
52 public void setValue(Value value) {
53 this.value= value;
54 }
55 public String getName() {
56 return name;
57 }
58 public void setName(String name) {
59 if (
60 name.charAt(0)=='`' |
61 Dialect.QUOTE.indexOf( name.charAt(0) ) > -1 ) {
63 quoted=true;
64 this.name=name.substring( 1, name.length()-1 );
65 }
66 else {
67 this.name = name;
68 }
69 }
70 public String getQuotedName(Dialect d) {
71 return quoted ?
72 d.openQuote() + name + d.closeQuote() :
73 name;
74 }
75
76
81 public String getAlias(Dialect dialect) {
82 String alias = name;
83 String unique = Integer.toString(uniqueInteger) + '_';
84 int lastLetter = StringHelper.lastIndexOfLetter(name);
85 if ( lastLetter == -1 ) {
86 alias = "column";
87 }
88 else if ( lastLetter < name.length()-1 ) {
89 alias = name.substring(0, lastLetter+1);
90 }
91 if ( alias.length() > dialect.getMaxAliasLength() ) {
92 alias = alias.substring( 0, dialect.getMaxAliasLength() - unique.length() );
93 }
94 boolean useRawName = name.equals(alias) &&
95 !quoted &&
96 !name.toLowerCase().equals("rowid");
97 if ( useRawName ) {
98 return alias;
99 }
100 else {
101 return alias + unique;
102 }
103 }
104
105
108 public String getAlias(Dialect dialect, Table table) {
109 return getAlias(dialect) + table.getUniqueInteger() + '_';
110 }
111
112 public boolean isNullable() {
113 return nullable;
114 }
115
116 public void setNullable(boolean nullable) {
117 this.nullable=nullable;
118 }
119
120 public int getTypeIndex() {
121 return typeIndex;
122 }
123 public void setTypeIndex(int typeIndex) {
124 this.typeIndex = typeIndex;
125 }
126
127 public int getSqlTypeCode(Mapping mapping) throws MappingException {
128 org.hibernate.type.Type type = getValue().getType();
129 try {
130 int sqlTypeCode = type.sqlTypes(mapping)[ getTypeIndex() ];
131 if(getSqlTypeCode()!=null && getSqlTypeCode().intValue()!=sqlTypeCode) {
132 throw new MappingException("SQLType code's does not match. mapped as " + sqlTypeCode + " but is " + getSqlTypeCode() );
133 }
134 return sqlTypeCode;
135 }
136 catch (Exception e) {
137 throw new MappingException(
138 "Could not determine type for column " +
139 name +
140 " of type " +
141 type.getClass().getName() +
142 ": " +
143 e.getClass().getName(),
144 e
145 );
146 }
147 }
148
149
158 public Integer getSqlTypeCode() {
159 return sqlTypeCode;
160 }
161
162 public void setSqlTypeCode(Integer typecode) {
163 sqlTypeCode=typecode;
164 }
165
166 public boolean isUnique() {
167 return unique;
168 }
169
170
171 public String getSqlType(Dialect dialect, Mapping mapping) throws HibernateException {
172 return sqlType==null ?
173 dialect.getTypeName( getSqlTypeCode(mapping), getLength(), getPrecision(), getScale() ) :
174 sqlType;
175 }
176
177 public boolean equals(Object object) {
178 return object instanceof Column && equals( (Column) object );
179 }
180
181 public boolean equals(Column column) {
182 if (null == column) return false;
183 if (this == column) return true;
184
185 return isQuoted() ?
186 name.equals(column.name) :
187 name.equalsIgnoreCase(column.name);
188 }
189
190 public int hashCode() {
192 return isQuoted() ?
193 name.hashCode() :
194 name.toLowerCase().hashCode();
195 }
196
197 public String getSqlType() {
198 return sqlType;
199 }
200
201 public void setSqlType(String sqlType) {
202 this.sqlType = sqlType;
203 }
204
205 public void setUnique(boolean unique) {
206 this.unique = unique;
207 }
208
209 public boolean isQuoted() {
210 return quoted;
211 }
212
213 public String toString() {
214 return getClass().getName() + '(' + getName() + ')';
215 }
216
217 public String getCheckConstraint() {
218 return checkConstraint;
219 }
220
221 public void setCheckConstraint(String checkConstraint) {
222 this.checkConstraint = checkConstraint;
223 }
224
225 public boolean hasCheckConstraint() {
226 return checkConstraint!=null;
227 }
228
229 public String getTemplate(Dialect dialect) {
230 return getQuotedName(dialect);
231 }
232
233 public boolean isFormula() {
234 return false;
235 }
236
237 public String getText(Dialect d) {
238 return getQuotedName(d);
239 }
240 public String getText() {
241 return getName();
242 }
243
244 public int getPrecision() {
245 return precision;
246 }
247 public void setPrecision(int scale) {
248 this.precision = scale;
249 }
250
251 public int getScale() {
252 return scale;
253 }
254 public void setScale(int scale) {
255 this.scale = scale;
256 }
257
258 public String getComment() {
259 return comment;
260 }
261
262 public void setComment(String comment) {
263 this.comment = comment;
264 }
265
266 }
267 |
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