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OclMessage | |
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<code class="code">OclMessage</code> | |
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<p>OclMessage | |
This sub clause contains the definition of the standard type OclMessage. | |
As defined in this sub clause, each ocl message type is actually a template type with one parameter. | |
‘T’ denotes the parameter. | |
A concrete ocl message type is created by substituting an operation or signal for the T.</p> | |
<p>The predefined type OclMessage is an instance of MessageType. | |
Every OclMessage is fully determined by either the operation, or signal given as parameter. | |
Note that there is conceptually an undefined (infinite) number of these types, | |
as each is determined by a different operation or signal. | |
These types are unnamed. Every type has as attributes the name of the operation or signal, | |
and either all formal parameters of the operation, or all attributes of the signal. | |
OclMessage is itself an instance of the metatype MessageType.</p> | |
<p>OclMessage has a number of predefined operations, as shown in the OCL Standard Library.</p> | |
<p>conformsTo | |
<a class="link" href="OclAny.html" title="OclAny"> | |
<code class="code">OclAny</code> | |
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<span class="bold"><strong>Operations</strong></span> | |
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<code class="code">hasReturned() : Boolean[1]</code> | |
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<p>True if type of template parameter is an operation call, and the called operation has returned a value. | |
This implies the fact that the message has been sent. False in all other cases.</p> | |
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<code class="code">isOperationCall() : Boolean[1]</code> | |
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<p>Returns | |
<code class="code">true</code> if the OclMessage represents the sending of a UML Operation call. | |
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<code class="code">isSignalSent() : Boolean[1]</code> | |
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<p>Returns | |
<code class="code">true</code> if the OclMessage represents the sending of a UML Signal. | |
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<code class="code">result() : OclAny[?]</code> | |
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<p>Returns the result of the called operation, if type of template parameter is an operation call, | |
and the called operation has returned a value. Otherwise the | |
<code class="code">invalid</code> value is returned. | |
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