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<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Ports</title>
<link href="book.css" rel="stylesheet" type="text/css">
<meta content="DocBook XSL Stylesheets V1.75.1" name="generator">
<link rel="home" href="index.html" title="eTrice User Guide">
<link rel="up" href="ROOMConcepts.html" title="ROOM Concepts">
<link rel="prev" href="Protocols.html" title="Protocols">
<link rel="next" href="DataClass.html" title="DataClass">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<h1 xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0">Ports</h1>
<div class="section" title="Ports">
<div class="titlepage">
<div>
<div>
<h2 class="title" style="clear: both">
<a name="Ports"></a>Ports</h2>
</div>
</div>
</div>
<div class="section" title="Description">
<div class="titlepage">
<div>
<div>
<h3 class="title">
<a name="Description3"></a>Description</h3>
</div>
</div>
</div>
<p>Ports are the only interfaces of actors. A port has always a protocol assigned.
Service Access Points (SAP) and Service Provision Points (SPP) are specialized ports that are used to define layering.</p>
</div>
<div class="section" title="Motivation">
<div class="titlepage">
<div>
<div>
<h3 class="title">
<a name="Motivation3"></a>Motivation</h3>
</div>
</div>
</div>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p>Ports decouple interface definition (Protocols) from interface usage</p>
</li>
<li class="listitem">
<p>Ports decouple the logical interface from the transport </p>
</li>
</ul>
</div>
</div>
<div class="section" title="Notation">
<div class="titlepage">
<div>
<div>
<h3 class="title">
<a name="Notation3"></a>Notation</h3>
</div>
</div>
</div>
<div class="section" title="Class Ports">
<div class="titlepage">
<div>
<div>
<h4 class="title">
<a name="ClassPorts"></a>Class Ports</h4>
</div>
</div>
</div>
<p>These symbols can only appear on the border of an actor class symbol. </p>
<p>Ports that define an external interface of the ActorClass, are defined in the
<span class="emphasis"><em>Interface</em></span>. Ports that define an internal interface are defined in the
<span class="emphasis"><em>Structure</em></span> (e.g. internal ports).
</p>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p>
<span class="bold"><strong>External End Ports</strong></span> are defined in the Interface and the Structure
</p>
</li>
<li class="listitem">
<p>
<span class="bold"><strong>Internal End Ports</strong></span> are only defined in the Structure
</p>
</li>
<li class="listitem">
<p>
<span class="bold"><strong>Relay Ports</strong></span> are only defined in the Interface
</p>
</li>
<li class="listitem">
<p>
<span class="bold"><strong>End Ports</strong></span> are always connected to the internal behavior of the ActorClass
</p>
</li>
<li class="listitem">
<p>
<span class="bold"><strong>Replicated Ports</strong></span> can be defined with a fixed replication factor ( e.g.
<span class="emphasis"><em>Port port18 [ 5 ]: ProtocolClass1</em></span> ) or a variable replication factor (e.g.
<span class="emphasis"><em>Port port18[ * ]: ProtocolClass1</em></span> )
</p>
</li>
</ul>
</div>
<table title="Class Port Notation" frame="box" border="2" cellpadding="3" cellspacing="0" id="N10BE9">
<tr>
<td align="center">
<span class="bold"><strong>Element</strong></span></td>
<td align="center" width="15%">
<span class="bold"><strong>Graphical Notation</strong></span></td>
<td align="center">
<span class="bold"><strong>Textual Notation</strong></span></td>
</tr>
<tr>
<td>Class End Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ClassEndPort.png"></div>
</td>
<td>
<span class="bold"><strong>External Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ClassEndPortTextual.png"></div>
<span class="bold"><strong>Internal Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ClassEndPortInternalTextual.png"></div>
</td>
</tr>
<tr>
<td>Conjugated Class End Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedClassEndPort.png"></div>
</td>
<td>
<span class="bold"><strong>External Conjugated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ConjugatedClassEndPortTextual.png"></div>
<span class="bold"><strong>Internal Conjugated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ConjugatedClassEndPortInternalTextual.png"></div>
</td>
</tr>
<tr>
<td>Class Relay Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ClassRelayPort.png"></div>
</td>
<td>
<div class="mediaobject">
<img src="images/040-ClassRelayPortTextual.png"></div>
</td>
</tr>
<tr>
<td>Conjugated Class Relay Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedClassRelayPort.png"></div>
</td>
<td>
<div class="mediaobject">
<img src="images/040-ConjugatedClassRelayPortTextual.png"></div>
</td>
</tr>
<tr>
<td>Replicated Class End Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ReplicatedClassEndPort.png"></div>
</td>
<td>
<span class="bold"><strong>External Replicated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ReplicatedClassEndPortTextual.png"></div>
<span class="bold"><strong>Internal Replicated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ReplicatedClassEndPortInternalTextual.png"></div>
</td>
</tr>
<tr>
<td>Conjugated Replicated Class End Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedClassEndPort.png"></div>
</td>
<td>
<span class="bold"><strong>External Conjugated Replicated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedClassEndPortTextual.png"></div>
<span class="bold"><strong>Internal Conjugated Replicated Class End Port:</strong></span>
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedClassEndPortInternalTextual.png"></div>
</td>
</tr>
<tr>
<td>Replicated Class Relay Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ReplicatedClassRelayPort.png"></div>
</td>
<td>
<div class="mediaobject">
<img src="images/040-ReplicatedClassRelayPortTextual.png"></div>
</td>
</tr>
<tr>
<td>Conjugated Replicated Class Relay Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedClassRelayPort.png"></div>
</td>
<td>
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedClassRelayPortTextual.png"></div>
</td>
</tr>
</table>
<p>
</p>
</div>
<div class="section" title="Reference Ports">
<div class="titlepage">
<div>
<div>
<h4 class="title">
<a name="ReferencePorts"></a>Reference Ports</h4>
</div>
</div>
</div>
<p>These symbols can only appear on the border of an ActorReference symbol. Since the type of port is defined in the ActorClass, no textual notation for the Reference Ports exists.</p>
<table title="Title" frame="box" border="2" cellpadding="3" cellspacing="0" id="N10D21">
<tr>
<td align="center">
<span class="bold"><strong>Element</strong></span></td>
<td align="center">
<span class="bold"><strong>Graphical Notation</strong></span></td>
<td align="center">
<span class="bold"><strong>Textual Notation</strong></span></td>
</tr>
<tr>
<td>Reference Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ReferencePort.png"></div>
</td>
<td align="center">
<span class="emphasis"><em>implicit</em></span></td>
</tr>
<tr>
<td>Conjugated Reference Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedReferencePort.png"></div>
</td>
<td align="center">
<span class="emphasis"><em>implicit</em></span></td>
</tr>
<tr>
<td>Replicated Reference Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ReplicatedReferencePort.png"></div>
</td>
<td align="center">
<span class="emphasis"><em>implicit</em></span></td>
</tr>
<tr>
<td>Conjugated Replicated Reference Port</td>
<td align="center">
<div class="mediaobject">
<img src="images/040-ConjugatedReplicatedReferencePort.png"></div>
</td>
<td align="center">
<span class="emphasis"><em>implicit</em></span></td>
</tr>
</table>
<p>
</p>
</div>
</div>
</div>
</body>
</html>
|
