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1 package org.hibernate.sql;
3
4 import org.hibernate.util.StringHelper;
5
6
11 public class Delete {
12
13 private String  tableName;
14 private String [] primaryKeyColumnNames;
15 private String versionColumnName;
16 private String where;
17
18 private String comment;
19 public Delete setComment(String comment) {
20 this.comment = comment;
21 return this;
22 }
23
24 public Delete setTableName(String tableName) {
25 this.tableName = tableName;
26 return this;
27 }
28
29 public String toStatementString() {
30 StringBuffer buf = new StringBuffer ( tableName.length() + 10 );
31 if ( comment!=null ) {
32 buf.append( "/* " ).append(comment).append( " */ " );
33 }
34 buf.append( "delete from " ).append(tableName);
35 if ( where != null || primaryKeyColumnNames != null || versionColumnName != null ) {
36 buf.append( " where " );
37 }
38 boolean conditionsAppended = false;
39 if ( primaryKeyColumnNames != null ) {
40 buf.append( StringHelper.join( "=? and ", primaryKeyColumnNames ) ).append( "=?" );
41 conditionsAppended = true;
42 }
43 if ( where!=null ) {
44 if ( conditionsAppended ) {
45 buf.append( " and " );
46 }
47 buf.append( where );
48 conditionsAppended = true;
49 }
50 if ( versionColumnName!=null ) {
51 if ( conditionsAppended ) {
52 buf.append( " and " );
53 }
54 buf.append( versionColumnName ).append( "=?" );
55 }
56 return buf.toString();
57 }
58
59 public Delete setWhere(String where) {
60 this.where=where;
61 return this;
62 }
63
64 public Delete setPrimaryKeyColumnNames(String [] primaryKeyColumnNames) {
65 this.primaryKeyColumnNames = primaryKeyColumnNames;
66 return this;
67 }
68
69 public Delete setVersionColumnName(String versionColumnName) {
70 this.versionColumnName = versionColumnName;
71 return this;
72 }
73
74 }
75 |
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