|
1
17 package org.apache.ws.jaxme.sqls.impl;
18
19 import java.util.ArrayList  ;
20 import java.util.Iterator ;
21 import java.util.List ;
22
23 import org.apache.ws.jaxme.sqls.Column;
24 import org.apache.ws.jaxme.sqls.Index;
25 import org.apache.ws.jaxme.sqls.Table;
26
27
28
31 public class IndexImpl extends ColumnSetImpl implements Index {
32 public static class NameImpl extends SQLFactoryImpl.IdentImpl implements Index.Name {
33 public NameImpl(String pName) {
34 super(pName);
35 }
36 }
37
38 private final List columns = new ArrayList ();
39 private final boolean unique;
40 private final boolean primaryKey;
41 private Index.Name name;
42
43 IndexImpl(Table pTable, boolean pUnique, boolean pPrimaryKey) {
44 super(pTable);
45 unique = pUnique;
46 primaryKey = pPrimaryKey;
47 if (primaryKey && !unique) {
48 throw new IllegalArgumentException ("A primary key must be unique.");
49 }
50 setName(pTable.getName() + "_" + "I" + ((TableImpl) pTable).indexNameCounter++);
51 }
52
53 public void setName(Index.Name pName) {
54 if (pName == null) {
55 throw new NullPointerException ("An index name must not be null.");
56 }
57 name = pName;
58 }
59
60 public void setName(String pName) {
61 if (pName == null) {
62 throw new NullPointerException ("An index name must not be null.");
63 }
64 setName(new IndexImpl.NameImpl(pName));
65 }
66
67 public Index.Name getName() {
68 return name;
69 }
70
71 public void addColumn(Column pColumn) {
72 if (columns.contains(pColumn)) {
73 throw new IllegalStateException ("The column " + pColumn.getName() + " was already added to the key.");
74 }
75 columns.add(pColumn);
76 }
77
78 public void addColumn(Column.Name pName) {
79 Column column = getTable().getColumn(pName);
80 if (column == null) {
81 throw new NullPointerException ("The table " + getTable().getName() + " doesn't contain a column " + pName);
82 }
83 addColumn(column);
84 }
85
86 public void addColumn(String pName) {
87 addColumn(new ColumnImpl.NameImpl(pName));
88 }
89
90 public boolean isUnique() {
91 return unique;
92 }
93
94 public boolean isPrimaryKey() {
95 return primaryKey;
96 }
97
98 public Iterator getColumns() {
99 return columns.iterator();
100 }
101 }
102 |
Popular Tags |
Java API By Example, From Geeks To Geeks.