Examples of org.apache.ws.jaxme.js.DirectAccessible

org.apache.ws.jaxme.js.DirectAccessible
This interface is an abstract base for fields and similar objects. It doesn't define many methods, it mainly indicates, that the implementations value is directly and fast accessible in the generated code. The use is best demonstrated by an example. Suggest the following piece of code:
```
 Object value; return new Object[]{"((", value, ") * (", value, "))"}; 
```
The example is well suited for the case, where value is a variable name like "i". It is not suited, if "value" contains an expensive method call like "sin(x)". It is even wrong in the case "i++".

By using the interface DirectAccessible, you can change the implementation of getSquare() to look like this:
```
 Object value; JavaQName type; if (!(value instanceof DirectAccessible)) { LocalJavaField v = pMethod.newJavaField(type); v.addLine(value); v.setFinal(true); value = v; } return new Object[]{"((", value, ") * (", value, "))"}; 
```
This results in code, which is far more readable and better optimized.
@author Jochen Wiedmann

  }


  public JavaMethod newStartElementMethod() throws SAXException {
    JavaSource js = getJavaSource();
    JavaMethod jm = js.newJavaMethod("startElement", boolean.class, JavaSource.PUBLIC);
    DirectAccessible pNamespaceURI = jm.addParam(String.class, "pNamespaceURI");
    DirectAccessible pLocalName = jm.addParam(String.class, "pLocalName");
    DirectAccessible pQName = jm.addParam(String.class, "pQName");
    DirectAccessible pAttr = jm.addParam(Attributes.class, "pAttr");
    setParamNamespaceURI(pNamespaceURI);
    setParamLocalName(pLocalName);
    setParamQName(pQName);
    setParamAttrs(pAttr);
    setParamResult(null);

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    return jm;
  }


  public JavaMethod newEndElementMethod() throws SAXException {
    JavaMethod jm = getJavaSource().newJavaMethod("endElement", void.class, JavaSource.PUBLIC);
    DirectAccessible pNamespaceURI = jm.addParam(String.class, "pNamespaceURI");
    DirectAccessible pLocalName = jm.addParam(String.class, "pLocalName");
    DirectAccessible pQName = jm.addParam(String.class, "pQName");
    DirectAccessible pResult = jm.addParam(Object.class, "pResult");
    setParamNamespaceURI(pNamespaceURI);
    setParamLocalName(pLocalName);
    setParamQName(pQName);
    setParamAttrs(null);
    setParamResult(pResult);

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    Object s = new Object[]{"(", StringSG.STRING_TYPE, ") ", pValue};
    TypedValue result = new TypedValueImpl(pType.getSimpleTypeSG().getCastFromString(pJm, s, "getHandler()"),
                            pType.getSimpleTypeSG().getRuntimeType());
    pPropertySG.addValue(pJm, pElement, result, null);
    if (causingParseConversionEvent) {
      DirectAccessible e = pJm.addCatch(Exception.class);
      pJm.addLine("getHandler().parseConversionEvent(",
            JavaSource.getQuoted("Failed to convert value of " + pName + ": "),
            " + ", pValue, ", ", e, ");");
      pJm.addEndTry();
    }

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        }
      }
      else {
        runtimeType = pController.getRuntimeType();
      }
      DirectAccessible param = jm.addParam(runtimeType, pParamName);
      if (!pSource.isInterface()) {
        jm.addLine(pFieldName, " = ", param, ";");
      }
      return jm;
    } else {

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      Object o = new Object[]{"new ", arrayClass.getInstanceClass(),
                  "[", fieldName, ".size()]"};
      if (isAutoBoxing()) {
        LocalJavaField res = result.newJavaField(getArrayClass());
        res.addLine(o);
        DirectAccessible i = result.addForList(int.class, fieldName);
        result.addLine(res, "[", i, "] = ", asPrimitive(i, fieldName), ";");
        result.addEndFor();
        result.addLine("return ", res, ";");
      } else {
        result.addLine("return (", arrayClass, ") ", fieldName,

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    JavaMethod result = pSource.newJavaMethod(methodName, "void", JavaSource.PUBLIC);
    Parameter array = result.addParam(arrayClass, "pValue");
    if (!pSource.isInterface()) {
      result.addLine(fieldName, ".clear();");
      result.addIf(array, " != null");
      DirectAccessible i = result.addForArray(int.class, array);
      Object o = new Object[]{array, "[", i, "]"};
      result.addLine(fieldName, ".add(", asObject(o), ");");
      result.addEndFor();
      result.addEndIf();
    }

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  }


  public void forAllValues(PropertySG pController, JavaMethod pMethod, DirectAccessible pElement, SGlet pSGlet) throws SAXException {
    LocalJavaField array = pMethod.newJavaField(getArrayClass());
    array.addLine(pController.getValue(pElement));
    DirectAccessible i = pMethod.addForArray(array);
    Object v;
    boolean isCasting = !OBJECT_TYPE.equals(getInstanceClass());
    if (isCasting  &&  pSGlet instanceof SGlet.TypedSGlet) {
      isCasting = ((SGlet.TypedSGlet) pSGlet).isCasting();
    }

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  }


  public void forAllNonNullValues(PropertySG pController, JavaMethod pMethod, DirectAccessible pElement, SGlet pSGlet) throws SAXException {
    LocalJavaField array = pMethod.newJavaField(getArrayClass());
    array.addLine(pController.getValue(pElement));
    DirectAccessible i = pMethod.addForArray(array);
    TypeSG typeSG = getObjectSG().getTypeSG();
    Object v;
    boolean isCasting = !OBJECT_TYPE.equals(typeSG.getRuntimeType());
    JavaQName qName = typeSG.getRuntimeType();
    if (isCasting  &&  pSGlet instanceof SGlet.TypedSGlet) {

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  public JavaSource getJavaSource() { return javaSource; }
  public ComplexTypeSG getType() { return ctSG; }


  public JavaMethod newGetAttributesMethod() throws SAXException {
    JavaMethod jm = getJavaSource().newJavaMethod("getAttributes", AttributesImpl.class, JavaSource.PUBLIC);
    final DirectAccessible pController = jm.addParam(JMSAXDriverController.class, "pController");
    DirectAccessible pObject = jm.addParam(Object.class, "pObject");
    jm.addThrows(SAXException.class);
    final LocalJavaField result = jm.newJavaField(AttributesImpl.class);
    result.addLine("new ", AttributesImpl.class, "()");
    AttributeSG[] myAttributes = ctSG.getAttributes();
    if (myAttributes.length > 0) {
      JavaQName elementInterface = ctSG.getClassContext().getXMLInterfaceName();
      LocalJavaField element = jm.newJavaField(elementInterface);
      element.addLine("(", elementInterface, ") ", pObject);
      
      for (int i = 0;  i < myAttributes.length;  i++) {
        final AttributeSG attribute = myAttributes[i];
        if (attribute.isWildcard()) {
            LocalJavaField anyAttributes = jm.newJavaField(WildcardAttribute[].class);
            anyAttributes.addLine(element, ".", attribute.getPropertySG().getXMLGetMethodName() + "Array", "()");
            DirectAccessible index = jm.addForArray(anyAttributes);
            LocalJavaField wildcardAttribute = jm.newJavaField(WildcardAttribute.class);
            wildcardAttribute.addLine(anyAttributes, "[", index, "]");
          LocalJavaField qName = jm.newJavaField(QName.class);
          qName.addLine(wildcardAttribute, ".getName()");
          LocalJavaField uri = jm.newJavaField(String.class);

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        }
      }
    }


    JavaMethod jm = getJavaSource().newJavaMethod("getPreferredPrefix", String.class, JavaSource.PUBLIC);
    DirectAccessible pURI = jm.addParam(String.class, "pURI");
    if (!uris.isEmpty()) {
      jm.addIf(pURI, " == null");
      jm.addLine(pURI, " = \"\";");
      jm.addEndIf();
      boolean first = true;

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