Package org.apache.ibatis.type

Examples of org.apache.ibatis.type.TypeHandler

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    boolean foundValues = false;
    final List<Class> parameterTypes = new ArrayList<Class>();
    final List<Object> parameterValues = new ArrayList<Object>();
    for (ResultMapping constructorMapping : constructorMappings) {
      final Class parameterType = constructorMapping.getJavaType();
      final TypeHandler typeHandler = constructorMapping.getTypeHandler();
      final String column = constructorMapping.getColumn();
      final Object value = typeHandler.getResult(rs, column);
      parameterTypes.add(parameterType);
      parameterValues.add(value);
      foundValues = value != null || foundValues;
    }
    return foundValues ? objectFactory.create(resultType, parameterTypes, parameterValues) : null;
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      columnName = mapping.getColumn();
    } else {
      final ResultSetMetaData rsmd = rs.getMetaData();
      columnName = configuration.isUseColumnLabel() ? rsmd.getColumnLabel(1) : rsmd.getColumnName(1);
    }
    final TypeHandler typeHandler = typeHandlerRegistry.getTypeHandler(resultType);
    return typeHandler.getResult(rs, columnName);
  }
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      return prepareSimpleKeyParameter(rs, resultMapping, parameterType);
    }
  }

  protected Object prepareSimpleKeyParameter(ResultSet rs, ResultMapping resultMapping, Class parameterType) throws SQLException {
    final TypeHandler typeHandler;
    if (typeHandlerRegistry.hasTypeHandler(parameterType)) {
      typeHandler = typeHandlerRegistry.getTypeHandler(parameterType);
    } else {
      typeHandler = typeHandlerRegistry.getUnkownTypeHandler();
    }
    return typeHandler.getResult(rs, resultMapping.getColumn());
  }
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  protected Object prepareCompositeKeyParameter(ResultSet rs, ResultMapping resultMapping, Class parameterType) throws SQLException {
    final Object parameterObject = instantiateParameterObject(parameterType);
    final MetaObject metaObject = MetaObject.forObject(parameterObject);
    for (ResultMapping innerResultMapping : resultMapping.getComposites()) {
      final Class propType = metaObject.getSetterType(innerResultMapping.getProperty());
      final TypeHandler typeHandler = typeHandlerRegistry.getTypeHandler(propType);
      final Object propValue = typeHandler.getResult(rs, innerResultMapping.getColumn());
      metaObject.setValue(innerResultMapping.getProperty(), propValue);
    }
    return parameterObject;
  }
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    return resultMap;
  }

  protected Object getDiscriminatorValue(ResultSet rs, Discriminator discriminator) throws SQLException {
    final ResultMapping resultMapping = discriminator.getResultMapping();
    final TypeHandler typeHandler = resultMapping.getTypeHandler();
    if (typeHandler != null) {
      return typeHandler.getResult(rs, resultMapping.getColumn());
    } else {
      throw new ExecutorException("No type handler could be found to map the property '" + resultMapping.getProperty() + "' to the column '" + resultMapping.getColumn() + "'.  One or both of the types, or the combination of types is not supported.");
    }
  }
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  private void createRowKeyForMappedProperties(ResultSet rs, CacheKey cacheKey, List<ResultMapping> resultMappings) {
    for (ResultMapping resultMapping : resultMappings) {
      if (resultMapping.getNestedQueryId() == null && resultMapping.getNestedResultMapId() == null) {
        final String column = resultMapping.getColumn();
        final TypeHandler th = resultMapping.getTypeHandler();
        if (column != null) {
          try {
            final Object value = th.getResult(rs, column);
            if (value != null) {
              cacheKey.update(column);
              cacheKey.update(value);
            }
          } catch (Exception e) {
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        String javaType = child.getStringAttribute("javaType");
        String jdbcType = child.getStringAttribute("jdbcType");
        String handler = child.getStringAttribute("handler");

        Class javaTypeClass = resolveClass(javaType);
        TypeHandler typeHandlerInstance = (TypeHandler) resolveClass(handler).newInstance();

        if (jdbcType == null) {
          typeHandlerRegistry.register(javaTypeClass, typeHandlerInstance);
        } else {
          typeHandlerRegistry.register(javaTypeClass, resolveJdbcType(jdbcType), typeHandlerInstance);
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      if (args[i] == null) {
        throw new SQLException("SqlRunner requires an instance of Null to represent typed null values for JDBC compatibility");
      } else if (args[i] instanceof Null) {
        ((Null) args[i]).getTypeHandler().setParameter(ps, i + 1, null, ((Null) args[i]).getJdbcType());
      } else {
        TypeHandler typeHandler = typeHandlerRegistry.getTypeHandler(args[i].getClass());
        if (typeHandler == null) {
          throw new SQLException("SqlRunner could not find a TypeHandler instance for " + args[i].getClass());
        } else {
          typeHandler.setParameter(ps, i + 1, args[i], null);
        }
      }
    }
  }
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      ResultSetMetaData rsmd = rs.getMetaData();
      for (int i = 0, n = rsmd.getColumnCount(); i < n; i++) {
        columns.add(rsmd.getColumnLabel(i + 1));
        try {
          Class type = Resources.classForName(rsmd.getColumnClassName(i + 1));
          TypeHandler typeHandler = typeHandlerRegistry.getTypeHandler(type);
          if (typeHandler == null) {
            typeHandler = typeHandlerRegistry.getTypeHandler(Object.class);
          }
          typeHandlers.add(typeHandler);
        } catch (Exception e) {
          typeHandlers.add(typeHandlerRegistry.getTypeHandler(Object.class));
        }
      }
      while (rs.next()) {
        Map<String, Object> row = new HashMap<String, Object>();
        for (int i = 0, n = columns.size(); i < n; i++) {
          String name = columns.get(i);
          TypeHandler handler = typeHandlers.get(i);
          row.put(name.toUpperCase(Locale.ENGLISH), handler.getResult(rs, name));
        }
        list.add(row);
      }
      return list;
    } finally {
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      Integer numericScale) {
    resultMap = applyCurrentNamespace(resultMap);

    // Class parameterType = parameterMapBuilder.type();
    Class javaTypeClass = resolveParameterJavaType(parameterType, property, javaType, jdbcType);
    TypeHandler typeHandlerInstance = (TypeHandler) resolveInstance(typeHandler);

    ParameterMapping.Builder builder = new ParameterMapping.Builder(configuration, property, javaTypeClass);
    builder.jdbcType(jdbcType);
    builder.resultMapId(resultMap);
    builder.mode(parameterMode);
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