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

    if (myAttributes.length == 0) {
      return null;
    }
    
    JavaMethod jm = getJavaSource().newJavaMethod("addAttribute", JavaQNameImpl.VOID, JavaSource.PUBLIC);
    DirectAccessible pURI = jm.addParam(String.class, "pURI");
    DirectAccessible pLocalName = jm.addParam(String.class, "pLocalName");
    DirectAccessible pValue = jm.addParam(String.class, "pValue");
    jm.addThrows(SAXException.class);
    jm.addIf(pURI, " == null");
    jm.addLine(pURI, " = \"\";");
    jm.addEndIf();

View Full Code Here

  }


  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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    TypedValue result = new TypedValueImpl(pType.getSimpleTypeSG().getCastFromString(pJm, s, "getHandler()"),
                            pType.getSimpleTypeSG().getRuntimeType());
    if (causingParseConversionEvent) {
      pJm.addLine(f, " = ", result, ";");
      result = f;
      DirectAccessible e = pJm.addCatch(Exception.class);
      pJm.addLine("getHandler().parseConversionEvent(",
            JavaSource.getQuoted("Failed to convert value of " + pName + ": "),
            " + ", pValue, ", ", e, ");");
      Object o;
      if (runtimeType.isPrimitive()) {

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    private TypedValue getParseCall(SimpleTypeSG pController, JavaMethod pMethod,
                                Object pValue, Object pData)
            throws SAXParseException {
        JavaQName type = getType(pController);
        DirectAccessible value = getValue(pMethod, pValue, JavaQNameImpl.getInstance(String.class));


        String parseMethod = javaType.getParseMethod().trim();
        List list = new ArrayList();
        if (parseMethod.startsWith("new")
            &&  parseMethod.length() > 3

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    private TypedValue getPrintCall(SimpleTypeSG pController, JavaMethod pMethod,
                                Object pValue, Object pData) {
      JavaQName type = getType(pController);
        LocalJavaField f = pMethod.newJavaField(String.class);
        DirectAccessible value = getValue(pMethod, pValue, type);
        List list = new ArrayList();
        addCall(pController, list, javaType.getPrintMethod(), type);
        addValues(list, value, pData);
        pMethod.addTry();
        pMethod.addLine(f, " = ", list, ";");
        DirectAccessible e = pMethod.addCatch(Exception.class);
        pMethod.addLine(pData, ".printConversionEvent(pObject, ", 
                        JavaSource.getQuoted("Failed to convert value "),
                        " + ", value, " + ", JavaSource.getQuoted(": "),
                        " + ", e, ".getClass().getName(), ", e, ");");
        pMethod.addLine(f, " = null;");

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    instances.addLine(new Object[]{"new ", qNameArray, "{", instanceParams, "}"});
    instances.setStatic(true);
    instances.setFinal(true);


    JavaConstructor con = js.newJavaConstructor(JavaSource.PRIVATE);
    DirectAccessible pName = con.addParam(String.class, "pName");
    DirectAccessible pValue = con.addParam(super.getRuntimeType(pController), "pValue");
    DirectAccessible pLexicalValue = con.addParam(String.class, "pLexicalValue");
    con.addLine(name, " = ", pName, ";");
    con.addLine(value, " = ", pValue, ";");
    con.addLine(lexicalValue, " = ", pLexicalValue, ";");


    JavaMethod toStringMethod = js.newJavaMethod("toString", String.class, JavaSource.PUBLIC);
    toStringMethod.addLine("return ", lexicalValue, ";");


    JavaMethod getValueMethod = js.newJavaMethod("getValue", valueType, JavaSource.PUBLIC);
    getValueMethod.addLine("return ", value, ";");


    JavaMethod getNameMethod = js.newJavaMethod("getName", String.class, JavaSource.PUBLIC);
    getNameMethod.addLine("return ", name, ";");


    JavaMethod getInstancesMethod = js.newJavaMethod("getInstances", qNameArray, JavaSource.PUBLIC);
    getInstancesMethod.setStatic(true);
    getInstancesMethod.addLine("return ", instances, ";");


    JavaMethod fromValueMethod = js.newJavaMethod("fromValue", qName, JavaSource.PUBLIC);
    pValue = fromValueMethod.addParam(valueType, "pValue");
    fromValueMethod.setStatic(true);
    DirectAccessible i = fromValueMethod.addForArray(instances);
    fromValueMethod.addIf(pController.getEqualsCheck(fromValueMethod, new Object[]{instances, "[", i, "].value"}, pValue));
    fromValueMethod.addLine("return ", instances, "[", i, "];");
    fromValueMethod.addEndIf();
    fromValueMethod.addEndFor();
    fromValueMethod.addThrowNew(IllegalArgumentException.class, JavaSource.getQuoted("Invalid value: "),

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  public JavaMethod getXMLSetMethod(SimpleTypeSG pController, JavaSource pSource,
                                    String pFieldName, String pParamName, String pMethodName) throws SAXException {
    if (pController.hasSetMethod()) {
      JavaMethod jm = pSource.newJavaMethod(pMethodName, JavaQNameImpl.VOID, JavaSource.PUBLIC);
      DirectAccessible param = jm.addParam(pController.getRuntimeType(), pParamName);
      if (!pSource.isInterface()) {
        pController.addValidation(jm, param);
        jm.addLine(pFieldName, " = ", param, ";");
      }
      return jm;

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    throw new LocSAXException("Failed to convert value " + pValue, getLocator(), e);
  }


  public TypedValue getCastFromString(SimpleTypeSG pController, JavaMethod pMethod, Object pValue,
                                      Object pData) throws SAXException {
    DirectAccessible value;
    if (pValue instanceof DirectAccessible) {
      value = (DirectAccessible) pValue;
    } else {
      LocalJavaField v = pMethod.newJavaField(String.class);
      v.addLine(pValue);

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    return result;
  }


  public TypedValue getCastToString(SimpleTypeSG pController, JavaMethod pMethod, Object pValue,
                                    DirectAccessible pData) throws SAXException {
    DirectAccessible value;
    if (pValue instanceof DirectAccessible) {
      value = (DirectAccessible) pValue;
    } else {
      LocalJavaField v = pMethod.newJavaField(Object.class);
      v.addLine(pValue);

View Full Code Here

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