0

我目前正在从事一个需要使用 qvto 将一个模型转换为另一个模型的项目。源模型是以表格形式表示的状态机。目标模型也是具有节点和边的状态机。源模型只有域元模型，但目标模型同时具有域元模型和符号元模型。符号元模型是http://www.eclipse.org/gmf/runtime/1.0.2/notation. 我从源域模型转换为目标域模型，但我的目标模型没有符号模型。我想做的是从目标模型生成符号模型并将其序列化到同一个 xmi 文件。我阅读了 EMF 和 GMF 的文档，并尝试这样做，但我做不到。我也google了一下，也没有用。目标模型的标题同时提到了域元模型和符号元模型。为清楚起见，请查看下面的 xmi 文件。

<?xml version="1.0" encoding="UTF-8"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:n1="http://www.target.com/EMF/1/SimpleStatechart" xmlns:notation="http://www.eclipse.org/gmf/runtime/1.0.2/notation">
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    <transitions xmi:type="n1:Transition" xmi:id="_RzqFYPMjEeS6mNxtIz5_4Q" body="" from="_RNakwPMjEeS6mNxtIz5_4Q" to="_RzcqAPMjEeS6mNxtIz5_4Q"/>
    <transitions xmi:type="n1:Transition" xmi:id="_BJd-wAeuEeaf_-AtraPkfA" body="in_ISensor:Activate/out_ISensor.send(sensorReply());" from="_RzcqAPMjEeS6mNxtIz5_4Q" to="_7UnrQAetEeaf_-AtraPkfA"/>
    <transitions xmi:type="n1:Transition" xmi:id="_DaWcQAeuEeaf_-AtraPkfA" body="in_InternalOptional:DetectedMovement/out_ISensor_NI.send(detectedMovement());" from="_7UnrQAetEeaf_-AtraPkfA" to="_7Q_IcAetEeaf_-AtraPkfA"/>
    <transitions xmi:type="n1:Transition" xmi:id="_EWLLUAeuEeaf_-AtraPkfA" body="in_ISensor:Deactivate/out_ISensor.send(sensorReply());" from="_7UnrQAetEeaf_-AtraPkfA" to="_7OB7EAetEeaf_-AtraPkfA"/>
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    <states xmi:type="n1:InitialState" xmi:id="_RNakwPMjEeS6mNxtIz5_4Q" name="InitialState"/>
    <states xmi:type="n1:BasicState" xmi:id="_RzcqAPMjEeS6mNxtIz5_4Q" name="Deactivated"/>
    <states xmi:type="n1:BasicState" xmi:id="_7OB7EAetEeaf_-AtraPkfA" name="Deactivating" internal=""/>
    <states xmi:type="n1:BasicState" xmi:id="_7Q_IcAetEeaf_-AtraPkfA" name="Triggered"/>
    <states xmi:type="n1:BasicState" xmi:id="_7UnrQAetEeaf_-AtraPkfA" name="Activated"/>
  </n1:statemachine>
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      <styles xmi:type="notation:LineStyle" xmi:id="_RNwjA_MjEeS6mNxtIz5_4Q" lineColor="0"/>
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    </children>
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从转换开始，我有目标模型的顶部直到 n1:statemachine，也就是域模型。从 n1:statemachine 开始，上半部分的图形表示继续我想要生成的。如何为从模型转换中获得的域模型生成符号模型？

4

1 回答 1

0

我不熟悉 QVT 的 EMF 资源处理，但我尽量描述在 EMF 和 GMF 级别上需要做什么。

从技术上讲，符号模型与您已经成功生成的领域模型是同一种 EMF 模型，只是它符合另一个被调用的元模型http://www.eclipse.org/gmf/runtime/1.0.2/notation，并且可以从相应的 GMF 插件中获得org.eclipse.gmf.runtime.notation。

你必须让你的转换知道这个元模型，然后你可以像原始模型一样生成它的实例。转换需要根据符号模型的定义将符号模型与目标域模型元素连接起来；但这与您的域模型已经支持的交叉引用处理方式相同。

最后，为了将目标模型和符号模型序列化到同一个 xmi 文件中，您必须将两者都添加到同一个 EMF 资源中，如下所示：

EObject targetDomain = ...; //root element of the target domain model
EObject targetNotation = ...; //root element of the target notation model
EList<EObject> contents = targetResource.getContents();
contents.add(targetDomain);
contents.add(targetNotation);

这些步骤一起应该允许您相应地生成符号模型。

于 2016-06-19T15:38:07.890 回答