Package org.jbpm.pvm.type

Examples of org.jbpm.pvm.type.TypeMapping


    VariableTypeResolverDescriptor variableTypeResolverDescriptor = new VariableTypeResolverDescriptor();
   
    List<Element> typeElements = XmlUtil.elements(element, "type");
    if (typeElements!=null) {
      for (Element typeElement: typeElements) {
        TypeMapping typeMapping = parseTypeMapping(typeElement, parse, parser);
        variableTypeResolverDescriptor.addTypeMapping(typeMapping);
      }
    } 
    return variableTypeResolverDescriptor;
  }
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    return variableTypeResolverDescriptor;
  }

  protected TypeMapping parseTypeMapping(Element element, Parse parse, Parser parser) {
    TypeMapping typeMapping = new TypeMapping();
   
    // first we get the matcher
    Matcher matcher = null;
    if (element.hasAttribute("class")) {
      String className = element.getAttribute("class");
     
      // if type="serializable"
      if ("serializable".equals(className)) {
        matcher = new SerializableMatcher();
       
      // if type="persistable"
      } else if ("persistable".equals(className)) {
        if (element.hasAttribute("id-type")) {
          String idType = element.getAttribute("id-type");
          if ("long".equalsIgnoreCase(idType)) {
            matcher = new HibernateLongIdMatcher();
          } else if ("string".equalsIgnoreCase(idType)) {
            matcher = new HibernateStringIdMatcher();
          } else {
            parse.addProblem("id-type was not 'long' or 'string': "+idType);
          }
        } else {
          parse.addProblem("id-type is required in a persistable type");
        }

      // otherwise, we expect type="some.java.ClassName"
      } else {
        matcher = new ClassNameMatcher(className);
      }

    } else {
      // look for the matcher element
      Element matcherElement = XmlUtil.element(element, "matcher");
      Element matcherObjectElement = XmlUtil.element(matcherElement);
      if (matcherObjectElement!=null) {
        try {
          matcher = (Matcher) parser.parseElement(matcherObjectElement, parse);
        } catch (ClassCastException e) {
          parse.addProblem("matcher is not a "+Matcher.class.getName()+": "+(matcher!=null ? matcher.getClass().getName() : "null"));
        }
      } else {
        parse.addProblem("no matcher specified in "+XmlUtil.toString(element));
      }
    }

    typeMapping.setMatcher(matcher);

    Converter converter = null;
    if (element.hasAttribute("converter")) {
      String converterClassName = element.getAttribute("converter");
      ClassLoader classLoader = parser.getClassLoader();
      try {
        Class<?> converterClass = classLoader.loadClass(converterClassName);
        converter = (Converter) converterClass.newInstance();
      } catch (Exception e) {
        parse.addProblem("couldn't instantiate converter "+converterClassName);
      }
    } else {
      // look for the matcher element
      Element converterElement = XmlUtil.element(element, "converter");
      Element converterObjectElement = XmlUtil.element(converterElement);
      if (converterObjectElement!=null) {
        try {
          converter = (Converter) parser.parseElement(converterObjectElement, parse);
        } catch (ClassCastException e) {
          parse.addProblem("converter is not a "+Converter.class.getName()+": "+(converter!=null ? converter.getClass().getName() : "null"));
        }
      }
    }

    typeMapping.setConverter(converter);
   
    Class<?> variableClass = null;
    if (element.hasAttribute("variable-class")) {
      String variableClassName = element.getAttribute("variable-class");
      ClassLoader classLoader = parser.getClassLoader();
      try {
        variableClass = classLoader.loadClass(variableClassName);
      } catch (Exception e) {
        parse.addProblem("couldn't instantiate variable-class "+variableClassName, e);
      }
    } else {
      parse.addProblem("variable-class is required on a type: "+XmlUtil.toString(element));
    }

    typeMapping.setVariableClass(variableClass);
   
    return typeMapping;
  }
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