src/eric7/Documentation/Source/eric7.Toolbox.SingleApplication.html

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1 <!DOCTYPE html>
2 <html><head>
3 <title>eric7.Toolbox.SingleApplication</title>
4 <meta charset="UTF-8">
5 <link rel="stylesheet" href="styles.css">
6 </head>
7 <body>
8 <a NAME="top" ID="top"></a>
9 <h1>eric7.Toolbox.SingleApplication</h1>
10
11 <p>
12 Module implementing the single application server and client.
13 </p>
14 <h3>Global Attributes</h3>
15
16 <table>
17 <tr><td>None</td></tr>
18 </table>
19 <h3>Classes</h3>
20
21 <table>
22
23 <tr>
24 <td><a href="#SingleApplicationClient">SingleApplicationClient</a></td>
25 <td>Class implementing the single application client base class.</td>
26 </tr>
27 <tr>
28 <td><a href="#SingleApplicationServer">SingleApplicationServer</a></td>
29 <td>Class implementing the single application server base class.</td>
30 </tr>
31 </table>
32 <h3>Functions</h3>
33
34 <table>
35 <tr><td>None</td></tr>
36 </table>
37 <hr />
38 <hr />
39 <a NAME="SingleApplicationClient" ID="SingleApplicationClient"></a>
40 <h2>SingleApplicationClient</h2>
41
42 <p>
43 Class implementing the single application client base class.
44 </p>
45 <h3>Derived from</h3>
46 None
47 <h3>Class Attributes</h3>
48
49 <table>
50 <tr><td>None</td></tr>
51 </table>
52 <h3>Class Methods</h3>
53
54 <table>
55 <tr><td>None</td></tr>
56 </table>
57 <h3>Methods</h3>
58
59 <table>
60
61 <tr>
62 <td><a href="#SingleApplicationClient.__init__">SingleApplicationClient</a></td>
63 <td>Constructor</td>
64 </tr>
65 <tr>
66 <td><a href="#SingleApplicationClient.connect">connect</a></td>
67 <td>Public method to connect the single application client to its server.</td>
68 </tr>
69 <tr>
70 <td><a href="#SingleApplicationClient.disconnect">disconnect</a></td>
71 <td>Public method to disconnect from the Single Appliocation server.</td>
72 </tr>
73 <tr>
74 <td><a href="#SingleApplicationClient.errstr">errstr</a></td>
75 <td>Public method to return a meaningful error string for the last error.</td>
76 </tr>
77 <tr>
78 <td><a href="#SingleApplicationClient.processArgs">processArgs</a></td>
79 <td>Public method to process the command line args passed to the UI.</td>
80 </tr>
81 <tr>
82 <td><a href="#SingleApplicationClient.sendCommand">sendCommand</a></td>
83 <td>Public method to send the command to the application server.</td>
84 </tr>
85 </table>
86 <h3>Static Methods</h3>
87
88 <table>
89 <tr><td>None</td></tr>
90 </table>
91
92 <a NAME="SingleApplicationClient.__init__" ID="SingleApplicationClient.__init__"></a>
93 <h4>SingleApplicationClient (Constructor)</h4>
94 <b>SingleApplicationClient</b>(<i>name</i>)
95
96 <p>
97 Constructor
98 </p>
99 <dl>
100
101 <dt><i>name</i></dt>
102 <dd>
103 name of the local server to connect to (string)
104 </dd>
105 </dl>
106 <a NAME="SingleApplicationClient.connect" ID="SingleApplicationClient.connect"></a>
107 <h4>SingleApplicationClient.connect</h4>
108 <b>connect</b>(<i>timeout=10000</i>)
109
110 <p>
111 Public method to connect the single application client to its server.
112 </p>
113 <dl>
114
115 <dt><i>timeout</i> (int)</dt>
116 <dd>
117 connection timeout value in milliseconds
118 </dd>
119 </dl>
120 <dl>
121 <dt>Return:</dt>
122 <dd>
123 value indicating success or an error number. Value is one of:
124 <table>
125 <tr><td>0</td><td>No application is running</td></tr>
126 <tr><td>1</td><td>Application is already running</td></tr>
127 </table>
128 </dd>
129 </dl>
130 <a NAME="SingleApplicationClient.disconnect" ID="SingleApplicationClient.disconnect"></a>
131 <h4>SingleApplicationClient.disconnect</h4>
132 <b>disconnect</b>(<i></i>)
133
134 <p>
135 Public method to disconnect from the Single Appliocation server.
136 </p>
137 <a NAME="SingleApplicationClient.errstr" ID="SingleApplicationClient.errstr"></a>
138 <h4>SingleApplicationClient.errstr</h4>
139 <b>errstr</b>(<i></i>)
140
141 <p>
142 Public method to return a meaningful error string for the last error.
143 </p>
144 <dl>
145 <dt>Return:</dt>
146 <dd>
147 error string for the last error (string)
148 </dd>
149 </dl>
150 <a NAME="SingleApplicationClient.processArgs" ID="SingleApplicationClient.processArgs"></a>
151 <h4>SingleApplicationClient.processArgs</h4>
152 <b>processArgs</b>(<i>args</i>)
153
154 <p>
155 Public method to process the command line args passed to the UI.
156 </p>
157 <p>
158 <b>Note</b>: This method must be overridden by subclasses.
159 </p>
160 <dl>
161
162 <dt><i>args</i></dt>
163 <dd>
164 command line args (list of strings)
165 </dd>
166 </dl>
167 <dl>
168
169 <dt>Raises <b>RuntimeError</b>:</dt>
170 <dd>
171 raised to indicate that this method must be
172 implemented by a subclass
173 </dd>
174 </dl>
175 <a NAME="SingleApplicationClient.sendCommand" ID="SingleApplicationClient.sendCommand"></a>
176 <h4>SingleApplicationClient.sendCommand</h4>
177 <b>sendCommand</b>(<i>command, arguments</i>)
178
179 <p>
180 Public method to send the command to the application server.
181 </p>
182 <dl>
183
184 <dt><i>command</i> (str)</dt>
185 <dd>
186 command to be sent to the server
187 </dd>
188 <dt><i>arguments</i> (list of str)</dt>
189 <dd>
190 list of command arguments
191 </dd>
192 </dl>
193 <div align="right"><a href="#top">Up</a></div>
194 <hr />
195 <hr />
196 <a NAME="SingleApplicationServer" ID="SingleApplicationServer"></a>
197 <h2>SingleApplicationServer</h2>
198
199 <p>
200 Class implementing the single application server base class.
201 </p>
202 <h3>Derived from</h3>
203 QLocalServer
204 <h3>Class Attributes</h3>
205
206 <table>
207 <tr><td>None</td></tr>
208 </table>
209 <h3>Class Methods</h3>
210
211 <table>
212 <tr><td>None</td></tr>
213 </table>
214 <h3>Methods</h3>
215
216 <table>
217
218 <tr>
219 <td><a href="#SingleApplicationServer.__init__">SingleApplicationServer</a></td>
220 <td>Constructor</td>
221 </tr>
222 <tr>
223 <td><a href="#SingleApplicationServer.__disconnected">__disconnected</a></td>
224 <td>Private method to handle the closure of the socket.</td>
225 </tr>
226 <tr>
227 <td><a href="#SingleApplicationServer.__newConnection">__newConnection</a></td>
228 <td>Private slot to handle a new connection.</td>
229 </tr>
230 <tr>
231 <td><a href="#SingleApplicationServer.__receiveJson">__receiveJson</a></td>
232 <td>Private method to receive the data from the client.</td>
233 </tr>
234 <tr>
235 <td><a href="#SingleApplicationServer.handleCommand">handleCommand</a></td>
236 <td>Public slot to handle the command sent by the client.</td>
237 </tr>
238 <tr>
239 <td><a href="#SingleApplicationServer.shutdown">shutdown</a></td>
240 <td>Public method used to shut down the server.</td>
241 </tr>
242 </table>
243 <h3>Static Methods</h3>
244
245 <table>
246 <tr><td>None</td></tr>
247 </table>
248
249 <a NAME="SingleApplicationServer.__init__" ID="SingleApplicationServer.__init__"></a>
250 <h4>SingleApplicationServer (Constructor)</h4>
251 <b>SingleApplicationServer</b>(<i>name</i>)
252
253 <p>
254 Constructor
255 </p>
256 <dl>
257
258 <dt><i>name</i></dt>
259 <dd>
260 name this server is listening to (string)
261 </dd>
262 </dl>
263 <a NAME="SingleApplicationServer.__disconnected" ID="SingleApplicationServer.__disconnected"></a>
264 <h4>SingleApplicationServer.__disconnected</h4>
265 <b>__disconnected</b>(<i></i>)
266
267 <p>
268 Private method to handle the closure of the socket.
269 </p>
270 <a NAME="SingleApplicationServer.__newConnection" ID="SingleApplicationServer.__newConnection"></a>
271 <h4>SingleApplicationServer.__newConnection</h4>
272 <b>__newConnection</b>(<i></i>)
273
274 <p>
275 Private slot to handle a new connection.
276 </p>
277 <a NAME="SingleApplicationServer.__receiveJson" ID="SingleApplicationServer.__receiveJson"></a>
278 <h4>SingleApplicationServer.__receiveJson</h4>
279 <b>__receiveJson</b>(<i></i>)
280
281 <p>
282 Private method to receive the data from the client.
283 </p>
284 <a NAME="SingleApplicationServer.handleCommand" ID="SingleApplicationServer.handleCommand"></a>
285 <h4>SingleApplicationServer.handleCommand</h4>
286 <b>handleCommand</b>(<i>command, arguments</i>)
287
288 <p>
289 Public slot to handle the command sent by the client.
290 </p>
291 <p>
292 <b>Note</b>: This method must be overridden by subclasses.
293 </p>
294 <dl>
295
296 <dt><i>command</i> (str)</dt>
297 <dd>
298 command sent by the client
299 </dd>
300 <dt><i>arguments</i> (list of str)</dt>
301 <dd>
302 list of command arguments
303 </dd>
304 </dl>
305 <dl>
306
307 <dt>Raises <b>RuntimeError</b>:</dt>
308 <dd>
309 raised to indicate that this method must be
310 implemented by a subclass
311 </dd>
312 </dl>
313 <a NAME="SingleApplicationServer.shutdown" ID="SingleApplicationServer.shutdown"></a>
314 <h4>SingleApplicationServer.shutdown</h4>
315 <b>shutdown</b>(<i></i>)
316
317 <p>
318 Public method used to shut down the server.
319 </p>
320 <div align="right"><a href="#top">Up</a></div>
321 <hr />
322 </body></html>

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