Documentation/Source/eric5.Utilities.SingleApplication.html

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN'
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html><head>
<title>eric5.Utilities.SingleApplication</title>
<style>
body {
    background: #EDECE6;
    margin: 0em 1em 10em 1em;
    color: black;
}

h1 { color: white; background: #85774A; }
h2 { color: white; background: #85774A; }
h3 { color: white; background: #9D936E; }
h4 { color: white; background: #9D936E; }
    
a { color: #BA6D36; }

</style>
</head>
<body><a NAME="top" ID="top"></a>
<h1>eric5.Utilities.SingleApplication</h1>
<p>
Module implementing the single application server and client.
</p>
<h3>Global Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>
<table>
<tr>
<td><a href="#SingleApplicationClient">SingleApplicationClient</a></td>
<td>Class implementing the single application client base class.</td>
</tr><tr>
<td><a href="#SingleApplicationServer">SingleApplicationServer</a></td>
<td>Class implementing the single application server base class.</td>
</tr>
</table>
<h3>Functions</h3>
<table>
<tr><td>None</td></tr>
</table>
<hr /><hr />
<a NAME="SingleApplicationClient" ID="SingleApplicationClient"></a>
<h2>SingleApplicationClient</h2>
<p>
    Class implementing the single application client base class.
</p>
<h3>Derived from</h3>
object
<h3>Class Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr>
<td><a href="#SingleApplicationClient.__init__">SingleApplicationClient</a></td>
<td>Constructor</td>
</tr><tr>
<td><a href="#SingleApplicationClient.connect">connect</a></td>
<td>Public method to connect the single application client to its server.</td>
</tr><tr>
<td><a href="#SingleApplicationClient.disconnect">disconnect</a></td>
<td>Public method to disconnect from the Single Appliocation server.</td>
</tr><tr>
<td><a href="#SingleApplicationClient.errstr">errstr</a></td>
<td>Public method to return a meaningful error string for the last error.</td>
</tr><tr>
<td><a href="#SingleApplicationClient.processArgs">processArgs</a></td>
<td>Public method to process the command line args passed to the UI.</td>
</tr><tr>
<td><a href="#SingleApplicationClient.sendCommand">sendCommand</a></td>
<td>Public method to send the command to the application server.</td>
</tr>
</table>
<a NAME="SingleApplicationClient.__init__" ID="SingleApplicationClient.__init__"></a>
<h4>SingleApplicationClient (Constructor)</h4>
<b>SingleApplicationClient</b>(<i>name</i>)
<p>
        Constructor
</p><dl>
<dt><i>name</i></dt>
<dd>
name of the local server to connect to (string)
</dd>
</dl><a NAME="SingleApplicationClient.connect" ID="SingleApplicationClient.connect"></a>
<h4>SingleApplicationClient.connect</h4>
<b>connect</b>(<i></i>)
<p>
        Public method to connect the single application client to its server.
</p><dl>
<dt>Returns:</dt>
<dd>
value indicating success or an error number. Value is one of:
            <table>
                <tr><td>0</td><td>No application is running</td></tr>
                <tr><td>1</td><td>Application is already running</td></tr>
            </table>
</dd>
</dl><a NAME="SingleApplicationClient.disconnect" ID="SingleApplicationClient.disconnect"></a>
<h4>SingleApplicationClient.disconnect</h4>
<b>disconnect</b>(<i></i>)
<p>
        Public method to disconnect from the Single Appliocation server.
</p><a NAME="SingleApplicationClient.errstr" ID="SingleApplicationClient.errstr"></a>
<h4>SingleApplicationClient.errstr</h4>
<b>errstr</b>(<i></i>)
<p>
        Public method to return a meaningful error string for the last error.
</p><dl>
<dt>Returns:</dt>
<dd>
error string for the last error (string)
</dd>
</dl><a NAME="SingleApplicationClient.processArgs" ID="SingleApplicationClient.processArgs"></a>
<h4>SingleApplicationClient.processArgs</h4>
<b>processArgs</b>(<i>args</i>)
<p>
        Public method to process the command line args passed to the UI.
</p><p>
        <b>Note</b>: This method must be overridden by subclasses.
</p><dl>
<dt><i>args</i></dt>
<dd>
command line args (list of strings)
</dd>
</dl><a NAME="SingleApplicationClient.sendCommand" ID="SingleApplicationClient.sendCommand"></a>
<h4>SingleApplicationClient.sendCommand</h4>
<b>sendCommand</b>(<i>cmd</i>)
<p>
        Public method to send the command to the application server.
</p><dl>
<dt><i>cmd</i></dt>
<dd>
command to be sent (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr /><hr />
<a NAME="SingleApplicationServer" ID="SingleApplicationServer"></a>
<h2>SingleApplicationServer</h2>
<p>
    Class implementing the single application server base class.
</p>
<h3>Derived from</h3>
QLocalServer
<h3>Class Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr>
<td><a href="#SingleApplicationServer.__init__">SingleApplicationServer</a></td>
<td>Constructor</td>
</tr><tr>
<td><a href="#SingleApplicationServer.__disconnected">__disconnected</a></td>
<td>Private method to handle the closure of the socket.</td>
</tr><tr>
<td><a href="#SingleApplicationServer.__newConnection">__newConnection</a></td>
<td>Private slot to handle a new connection.</td>
</tr><tr>
<td><a href="#SingleApplicationServer.__parseLine">__parseLine</a></td>
<td>Private method to handle data from the client.</td>
</tr><tr>
<td><a href="#SingleApplicationServer.handleCommand">handleCommand</a></td>
<td>Public slot to handle the command sent by the client.</td>
</tr><tr>
<td><a href="#SingleApplicationServer.shutdown">shutdown</a></td>
<td>Public method used to shut down the server.</td>
</tr>
</table>
<a NAME="SingleApplicationServer.__init__" ID="SingleApplicationServer.__init__"></a>
<h4>SingleApplicationServer (Constructor)</h4>
<b>SingleApplicationServer</b>(<i>name</i>)
<p>
        Constructor
</p><dl>
<dt><i>name</i></dt>
<dd>
name this server is listening to (string)
</dd>
</dl><a NAME="SingleApplicationServer.__disconnected" ID="SingleApplicationServer.__disconnected"></a>
<h4>SingleApplicationServer.__disconnected</h4>
<b>__disconnected</b>(<i></i>)
<p>
        Private method to handle the closure of the socket.
</p><a NAME="SingleApplicationServer.__newConnection" ID="SingleApplicationServer.__newConnection"></a>
<h4>SingleApplicationServer.__newConnection</h4>
<b>__newConnection</b>(<i></i>)
<p>
        Private slot to handle a new connection.
</p><a NAME="SingleApplicationServer.__parseLine" ID="SingleApplicationServer.__parseLine"></a>
<h4>SingleApplicationServer.__parseLine</h4>
<b>__parseLine</b>(<i></i>)
<p>
        Private method to handle data from the client.
</p><a NAME="SingleApplicationServer.handleCommand" ID="SingleApplicationServer.handleCommand"></a>
<h4>SingleApplicationServer.handleCommand</h4>
<b>handleCommand</b>(<i>cmd, params</i>)
<p>
        Public slot to handle the command sent by the client.
</p><p>
        <b>Note</b>: This method must be overridden by subclasses.
</p><dl>
<dt><i>cmd</i></dt>
<dd>
commandstring (string)
</dd><dt><i>params</i></dt>
<dd>
parameterstring (string)
</dd>
</dl><a NAME="SingleApplicationServer.shutdown" ID="SingleApplicationServer.shutdown"></a>
<h4>SingleApplicationServer.shutdown</h4>
<b>shutdown</b>(<i></i>)
<p>
        Public method used to shut down the server.
</p>
<div align="right"><a href="#top">Up</a></div>
<hr />
</body></html>