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

    name.setFinal(true);
    JavaField values = jic.newJavaField("values", Object[].class, JavaSource.PRIVATE);
    values.setFinal(true);
    
    JavaConstructor jcon = jic.newJavaConstructor(JavaSource.PRIVATE);
    DirectAccessible pName = jcon.addParam(String.class, "pName");
    DirectAccessible pValues = jcon.addParam(Object[].class, "pValues");
    jcon.addLine(name, " = ", pName, ";");
    jcon.addLine(values, " = ", pValues, ";");
    
    JavaMethod getNameMethod = jic.newJavaMethod("getName", String.class, JavaSource.PUBLIC);
    getNameMethod.addLine("return ", name, ";");
    
    JavaMethod getValuesMethod = jic.newJavaMethod("getValues", Object[].class, JavaSource.PUBLIC);
    getValuesMethod.addLine("return ", values, ";");
    
    {
      JavaMethod jm = jic.newJavaMethod("toString", String.class, JavaSource.PUBLIC);
      LocalJavaField sb = jm.newJavaField(StringBuffer.class, "sb");
      sb.addLine("new ", StringBuffer.class, "(", name, ")");
      DirectAccessible loopVar = jm.addForArray(values);
      jm.addLine(sb, ".append(", JavaSource.getQuoted(", "), ").append(",
          values, "[", loopVar, "]);");
      jm.addEndFor();
      jm.addLine("return ", sb, ".toString();");
      
    }
    
    {
      JavaMethod jm = jic.newJavaMethod("hashCode", int.class, JavaSource.PUBLIC);
      LocalJavaField hashCodeResult = jm.newJavaField(int.class, "result");
      hashCodeResult.addLine(name, ".hashCode() + ", values, ".length;");
      DirectAccessible loopVar = jm.addForArray(values);
      LocalJavaField o = jm.newJavaField(Object.class, "o");
      o.addLine(values, "[", loopVar, "]");
      jm.addIf(o, " != null");
      jm.addLine(hashCodeResult, " += ", o, ".hashCode();");
      jm.addEndIf();
      jm.addEndFor();
      jm.addLine("return ", hashCodeResult, ";");
    }
    
    {
      JavaMethod jm = jic.newJavaMethod("equals", boolean.class, JavaSource.PUBLIC);
      DirectAccessible o = jm.addParam(Object.class, "o");
      jm.addIf(o, " == null  ||  !(", o, " instanceof ", jic.getQName(), ")");
      jm.addLine("return false;");
      jm.addEndIf();
      LocalJavaField other = jm.newJavaField(jic.getQName(), "other");
      other.addLine("(", jic.getQName(), ") ", o);
      jm.addIf("!", name, ".equals(", other, ".name)  ||  ", values, ".length != ",
          other, ".values.length");
      jm.addLine("return false;");
      jm.addEndIf();
      DirectAccessible loopVar = jm.addForArray(values);
      LocalJavaField v = jm.newJavaField(Object.class, "v");
      v.addLine(values, "[", loopVar, "]");
      jm.addIf(v, " == null");
      jm.addIf(other, ".values[", loopVar, "] != null");
      jm.addLine("return false;");

View Full Code Here

  protected JavaMethod getInsertRowMethod(JavaSource pSource, TableInfo pTableInfo) {
    Table table = pTableInfo.getTable();
    JavaMethod jm = pSource.newJavaMethod(getInsertRowMethodName(pTableInfo),
        Object[].class, JavaSource.PRIVATE);
    jm.addThrows(SQLException.class);
    DirectAccessible connection = jm.addParam(Connection.class, "pConn");
    DirectAccessible map = jm.addParam(Map.class, "pMap");
    DirectAccessible values = jm.addParam(Object[].class, "pValue");
    
    logFinestEntering(jm, values);
    
    LocalJavaField baseKey = null;
    if (table.getPrimaryKey() != null) {

View Full Code Here

  protected JavaMethod getInnerInsertRowMethod(JavaSource pSource, TableInfo pTableInfo) {
    Table table = pTableInfo.getTable();
    JavaMethod jm = pSource.newJavaMethod(getInsertRowMethodName(pTableInfo),
        JavaQNameImpl.VOID, JavaSource.PRIVATE);
    jm.addThrows(SQLException.class);
    DirectAccessible connection = jm.addParam(Connection.class, "pConn");
    DirectAccessible values = jm.addParam(Object[].class, "pValue");
    
    logFinestEntering(jm, null);
    
    InsertStatement insertStatement = table.getInsertStatement();
    String s = table.getSchema().getSQLFactory().newSQLGenerator().getQuery(insertStatement);

View Full Code Here

        jc.addLine("All the referencing entries are cloned as well, with updated");
        jc.addLine("references.");
      }
    }
    
    DirectAccessible conn = jm.addParam(Connection.class, "pConn");
    DirectAccessible row = jm.addParam(resultType, "pRow");
    
    logEntering(jm, new Object[]{"new ", Object[].class, "{", conn, ", ", row, "}"});
    
    LocalJavaField map = jm.newJavaField(Map.class, "clonedObjects");
    map.addLine("new ", HashMap.class, "()");

View Full Code Here

            LocalJavaField resultA = pMethod.newJavaField(pType);
            pMethod.addIf(resultV , " == null");
            pMethod.addLine(resultA, " = null;");
            pMethod.addElse();
            pMethod.addLine(resultA, " = new ", pType.getInstanceClass(), "[", resultV, ".size()];");
            DirectAccessible i = pMethod.addForArray(resultA);
            Object element = new Object[]{resultV, ".elementAt(", i, ")"};
            pMethod.addLine(resultA, "[", i, "] = ", getResultValue(pMethod, pType.getInstanceClass(), element), ";");
            pMethod.addEndFor();
            pMethod.addEndIf();
            return resultA;

View Full Code Here

            LocalJavaField v = pMethod.newJavaField(Vector.class);
            pMethod.addIf(pValue, " == null");
            pMethod.addLine(v, " = null;");
            pMethod.addElse();
            pMethod.addLine(v, " = new ", Vector.class, "();");
            DirectAccessible i = pMethod.addForArray(pValue);
            Object element = new Object[]{pValue, "[", i, "]"};
            pMethod.addLine(v, ".add(", getInputValue(pMethod, pType.getInstanceClass(), element), ");");
            pMethod.addEndFor();
            pMethod.addEndIf();
            return v;

View Full Code Here

          jm.addLine("return ", getResultValue(jm, jm.getType(), result), ";");
        }
        if (!exceptionList.isEmpty()) {
            for (int i = 0;  i < exceptionList.size();  i++) {
              JavaQName exClass = (JavaQName) exceptionList.get(i);
                DirectAccessible e = jm.addCatch(exClass);
                jm.addThrowNew(UndeclaredThrowableException.class, e);
            }
            jm.addEndTry();
        }
        return jm;

View Full Code Here

                       JavaSource.getQuoted("Unknown method name: "),
                       " + ", name);
        jm.addEndIf();
        jm.addTry();
        jm.addLine("return ", invoker, ".invoke(", args, ");");
        DirectAccessible e = jm.addCatch(Exception.class);
        jm.addLine("throw ", e, ";");
        DirectAccessible t = jm.addCatch(Throwable.class);
        jm.addThrowNew(UndeclaredThrowableException.class, t);
        jm.addEndTry();
        return jm;
    }

View Full Code Here

      throws SAXException {
    LocalJavaField list = pMethod.newJavaField(LIST_TYPE);
    String collectionType = pController.getCollectionType();
    list.addLine("new ", ("indexed".equals(collectionType) ?
                          ARRAYLIST_TYPE : JavaQNameImpl.getInstance(collectionType)), "()");
    DirectAccessible st = pMethod.addForEnumeration(StringTokenizer.class, new Object[]{"new ", StringTokenizer.class, "(", pValue, ")"});
    pMethod.addLine(list, ".add(", itemType.getSimpleTypeSG().getCastFromString(pMethod, new Object[]{st, ".nextToken()"}, pData),
                    ");");
    pMethod.addEndFor();


    if ("indexed".equals(collectionType)) {

View Full Code Here

  }


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


    LocalJavaField sb = pMethod.newJavaField(StringBuffer.class);
    sb.addLine("new ", StringBuffer.class, "()");
    Object v;
    DirectAccessible loopVar;
    if ("indexed".equals(collectionType)) {
      loopVar = pMethod.addForArray(value);
      v = new Object[]{value, "[", loopVar, "]"};
    } else {
      loopVar = pMethod.addForList(value);

View Full Code Here

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