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1 package org.hibernate.mapping;
3
4 import java.io.Serializable  ;
5 import java.util.ArrayList ;
6 import java.util.Iterator ;
7 import java.util.List ;
8
9 import org.hibernate.dialect.Dialect;
10 import org.hibernate.engine.Mapping;
11
12
16 public abstract class Constraint implements RelationalModel, Serializable {
17
18 private String name;
19 private final List columns = new ArrayList ();
20 private Table table;
21
22 public String getName() {
23 return name;
24 }
25 public void setName(String name) {
26 this.name = name;
27 }
28 public Iterator getColumnIterator() {
29 return columns.iterator();
30 }
31 public void addColumn(Column column) {
32 if ( !columns.contains(column) ) columns.add(column);
33 }
34 public void addColumns(Iterator columnIterator) {
35 while ( columnIterator.hasNext() ) {
36 Selectable col = (Selectable) columnIterator.next();
37 if ( !col.isFormula() ) addColumn( (Column) col );
38 }
39 }
40
44 public boolean containsColumn(Column column) {
45 return columns.contains(column);
46 }
47 public int getColumnSpan() {
48 return columns.size();
49 }
50
51 public Column getColumn(int i) {
52 return (Column) columns.get(i);
53 }
54
55 public Iterator columnIterator() {
56 return columns.iterator();
57 }
58 public Table getTable() {
59 return table;
60 }
61 public void setTable(Table table) {
62 this.table = table;
63 }
64
65 public String sqlDropString(Dialect dialect, String defaultCatalog, String defaultSchema) {
66 return "alter table " + getTable().getQualifiedName(dialect, defaultCatalog, defaultSchema) + " drop constraint " + getName();
67 }
68
69 public String sqlCreateString(Dialect dialect, Mapping p, String defaultCatalog, String defaultSchema) {
70 StringBuffer buf = new StringBuffer ("alter table ")
71 .append( getTable().getQualifiedName(dialect, defaultCatalog, defaultSchema) )
72 .append( sqlConstraintString( dialect, getName(), defaultCatalog, defaultSchema ) );
73 return buf.toString();
74 }
75
76 public List getColumns() {
77 return columns;
78 }
79
80 public abstract String sqlConstraintString(Dialect d, String constraintName, String defaultCatalog, String defaultSchema);
81
82 public String toString() {
83 return getClass().getName() + '(' + getTable().getName() + getColumns() + ") as " + name;
84 }
85 }
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