blob: ed256b2b5a0a12bb29789de74acf82edd8f333b7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*
* Copyright 2011 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.data.util.sqlcontainer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import com.vaadin.data.Item;
import com.vaadin.data.Property;
/**
* RowItem represents one row of a result set obtained from a QueryDelegate.
*
* Note that depending on the QueryDelegate in use this does not necessarily map
* into an actual row in a database table.
*/
public final class RowItem implements Item {
private static final long serialVersionUID = -6228966439127951408L;
private SQLContainer container;
private RowId id;
private Collection<ColumnProperty> properties;
/**
* Prevent instantiation without required parameters.
*/
@SuppressWarnings("unused")
private RowItem() {
}
public RowItem(SQLContainer container, RowId id,
Collection<ColumnProperty> properties) {
if (container == null) {
throw new IllegalArgumentException("Container cannot be null.");
}
if (id == null) {
throw new IllegalArgumentException("Row ID cannot be null.");
}
this.container = container;
this.properties = properties;
/* Set this RowItem as owner to the properties */
if (properties != null) {
for (ColumnProperty p : properties) {
p.setOwner(this);
}
}
this.id = id;
}
@Override
public Property<?> getItemProperty(Object id) {
if (id instanceof String && id != null) {
for (ColumnProperty cp : properties) {
if (id.equals(cp.getPropertyId())) {
return cp;
}
}
}
return null;
}
@Override
public Collection<?> getItemPropertyIds() {
Collection<String> ids = new ArrayList<String>(properties.size());
for (ColumnProperty cp : properties) {
ids.add(cp.getPropertyId());
}
return Collections.unmodifiableCollection(ids);
}
/**
* Adding properties is not supported. Properties are generated by
* SQLContainer.
*/
@Override
public boolean addItemProperty(Object id, Property property)
throws UnsupportedOperationException {
throw new UnsupportedOperationException();
}
/**
* Removing properties is not supported. Properties are generated by
* SQLContainer.
*/
@Override
public boolean removeItemProperty(Object id)
throws UnsupportedOperationException {
throw new UnsupportedOperationException();
}
public RowId getId() {
return id;
}
public SQLContainer getContainer() {
return container;
}
public boolean isModified() {
if (properties != null) {
for (ColumnProperty p : properties) {
if (p.isModified()) {
return true;
}
}
}
return false;
}
@Override
public String toString() {
StringBuffer s = new StringBuffer();
s.append("ID:");
s.append(getId().toString());
for (Object propId : getItemPropertyIds()) {
s.append("|");
s.append(propId.toString());
s.append(":");
Object value = getItemProperty(propId).getValue();
s.append((null != value) ? value.toString() : null);
}
return s.toString();
}
public void commit() {
if (properties != null) {
for (ColumnProperty p : properties) {
p.commit();
}
}
}
}
|
