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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* the BSD license.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*************************************************************************/
/**************************************************************************/
import com.sun.star.uno.*;
import com.sun.star.beans.*;
import com.sun.star.form.*;
import com.sun.star.lang.*;
import com.sun.star.sdb.*;
import com.sun.star.sdbc.*;
import com.sun.star.sdbcx.*;
import com.sun.star.container.*;
import com.sun.star.awt.*;
import com.sun.star.task.*;
/**************************************************************************/
/** helper class for validating a grid field before it is updated
<p>Actually, the mechanism for validating the field is not restricted to
grid control fields. Instead, it can be used for any bound controls.</p>
*/
class GridFieldValidator implements XUpdateListener
{
private DocumentHelper m_aDocument;
private XComponentContext m_xCtx;
private XPropertySet m_xWatchedColumn;
private boolean m_bWatching;
/* ------------------------------------------------------------------ */
public GridFieldValidator( XComponentContext xCtx, XPropertySet xWatchedGridColumn )
{
// remember
m_xCtx = xCtx;
m_xWatchedColumn = xWatchedGridColumn;
m_aDocument = DocumentHelper.getDocumentForComponent(xWatchedGridColumn,
xCtx);
m_bWatching = false;
}
/* ------------------------------------------------------------------ */
public void enableColumnWatch( boolean bEnable )
{
if ( bEnable == m_bWatching )
return;
XUpdateBroadcaster xUpdate = (XUpdateBroadcaster)UnoRuntime.queryInterface(
XUpdateBroadcaster.class, m_xWatchedColumn );
if ( bEnable )
xUpdate.addUpdateListener( this );
else
xUpdate.removeUpdateListener( this );
m_bWatching = bEnable;
}
/* ------------------------------------------------------------------ */
/** shows a message that we can't do several things due to an implementation error
*/
private void showInvalidValueMessage( )
{
try
{
// build the message we want to show
String sMessage = "The column \"";
sMessage += FLTools.getLabel( m_xWatchedColumn );
sMessage += "\" is not allowed to contain empty strings.";
SQLContext aError = new SQLContext(
new String( "Invalid Value Entered" ),
null,
new String( "S1000" ),
0,
new Any( new Type(), null ),
sMessage
);
// instantiate an interaction handler who can handle SQLExceptions
XInteractionHandler xHandler = (XInteractionHandler)UnoRuntime.queryInterface(
XInteractionHandler.class,
m_xCtx.getServiceManager().createInstanceWithContext(
"com.sun.star.sdb.InteractionHandler", m_xCtx ) );
// create a new request and execute it
InteractionRequest aRequest = new InteractionRequest( aError );
xHandler.handle( aRequest );
}
catch( com.sun.star.uno.Exception e )
{
System.out.println(e);
e.printStackTrace();
}
}
/* ------------------------------------------------------------------ */
// XUpdateListener overridables
/* ------------------------------------------------------------------ */
public boolean approveUpdate( EventObject aEvent ) throws com.sun.star.uno.RuntimeException
{
boolean bApproved = true;
try
{
// the control model which fired the event
XPropertySet xSourceProps = UNO.queryPropertySet( aEvent.Source );
String sNewText = (String)xSourceProps.getPropertyValue( "Text" );
if ( 0 == sNewText.length() )
{
// say that the value is invalid
showInvalidValueMessage( );
bApproved = false;
// reset the control value
// for this, we take the current value from the row set field the control
// is bound to, and forward it to the control model
XColumn xBoundColumn = UNO.queryColumn( xSourceProps.getPropertyValue( "BoundField" ) );
if ( null != xBoundColumn )
{
xSourceProps.setPropertyValue( "Text", xBoundColumn.getString() );
}
}
}
catch( com.sun.star.uno.Exception e )
{
System.out.println(e);
e.printStackTrace();
}
return bApproved;
}
/* ------------------------------------------------------------------ */
public void updated( EventObject aEvent ) throws com.sun.star.uno.RuntimeException
{
}
/* ------------------------------------------------------------------ */
// XEventListener overridables
/* ------------------------------------------------------------------ */
public void disposing( EventObject aEvent )
{
// not interested in
}
};
|
