Beispiel #1
0
 private void testResultSetOperation(Object obj) throws SQLException {
   SimpleResultSet rs = new SimpleResultSet();
   rs.setAutoClose(false);
   int valueType = DataType.getTypeFromClass(obj.getClass());
   int sqlType = DataType.convertTypeToSQLType(valueType);
   rs.addColumn("X", sqlType, 10, 0);
   rs.addRow(new Object[] {obj});
   rs.next();
   Value v = DataType.readValue(null, rs, 1, valueType);
   Value v2 = DataType.convertToValue(null, obj, valueType);
   if (v.getType() == Value.RESULT_SET) {
     assertEquals(v.toString(), v2.toString());
   } else {
     assertTrue(v.equals(v2));
   }
 }
Beispiel #2
0
 JavaMethod(Method method, int id) throws SQLException {
   this.method = method;
   this.id = id;
   Class<?>[] paramClasses = method.getParameterTypes();
   paramCount = paramClasses.length;
   if (paramCount > 0) {
     Class<?> paramClass = paramClasses[0];
     if (Connection.class.isAssignableFrom(paramClass)) {
       hasConnectionParam = true;
       paramCount--;
     }
   }
   if (paramCount > 0) {
     Class<?> lastArg = paramClasses[paramClasses.length - 1];
     if (lastArg.isArray() && ClassUtils.isVarArgs(method)) {
       varArgs = true;
       varArgClass = lastArg.getComponentType();
     }
   }
   Class<?> returnClass = method.getReturnType();
   dataType = DataType.getTypeFromClass(returnClass);
 }
Beispiel #3
0
    /**
     * Call the user-defined function and return the value.
     *
     * @param session the session
     * @param args the argument list
     * @param columnList true if the function should only return the column list
     * @return the value
     */
    public Value getValue(Session session, Expression[] args, boolean columnList)
        throws SQLException {
      Class<?>[] paramClasses = method.getParameterTypes();
      Object[] params = new Object[paramClasses.length];
      int p = 0;
      if (hasConnectionParam && params.length > 0) {
        params[p++] = session.createConnection(columnList);
      }

      // allocate array for varArgs parameters
      Object varArg = null;
      if (varArgs) {
        int len = args.length - params.length + 1 + (hasConnectionParam ? 1 : 0);
        varArg = Array.newInstance(varArgClass, len);
        params[params.length - 1] = varArg;
      }

      for (int a = 0; a < args.length; a++, p++) {
        boolean currentIsVarArg = varArgs && p >= paramClasses.length - 1;
        Class<?> paramClass;
        if (currentIsVarArg) {
          paramClass = varArgClass;
        } else {
          paramClass = paramClasses[p];
        }
        int type = DataType.getTypeFromClass(paramClass);
        Value v = args[a].getValue(session);
        v = v.convertTo(type);
        Object o = v.getObject();
        if (o == null) {
          if (paramClass.isPrimitive()) {
            if (columnList) {
              // if the column list is requested, the parameters may
              // be null
              // need to set to default value otherwise the function
              // can't be called at all
              o = DataType.getDefaultForPrimitiveType(paramClass);
            } else {
              // NULL for a java primitive: return NULL
              return ValueNull.INSTANCE;
            }
          }
        } else {
          if (!paramClass.isAssignableFrom(o.getClass()) && !paramClass.isPrimitive()) {
            o = DataType.convertTo(session, session.createConnection(false), v, paramClass);
          }
        }
        if (currentIsVarArg) {
          Array.set(varArg, p - params.length + 1, o);
        } else {
          params[p] = o;
        }
      }
      boolean old = session.getAutoCommit();
      Value identity = session.getScopeIdentity();
      try {
        session.setAutoCommit(false);
        try {
          Object returnValue;
          returnValue = method.invoke(null, params);
          if (returnValue == null) {
            return ValueNull.INSTANCE;
          }
          Value ret = DataType.convertToValue(session, returnValue, dataType);
          return ret.convertTo(dataType);
        } catch (Exception e) {
          throw Message.convert(e);
        }
      } finally {
        session.setScopeIdentity(identity);
        session.setAutoCommit(old);
      }
    }
Beispiel #4
0
 private void testDataType(int type, Class<?> clazz) {
   assertEquals(type, DataType.getTypeFromClass(clazz));
 }