Java Code Examples for org.apache.ibatis.mapping.ResultMap#getType()

The following examples show how to use org.apache.ibatis.mapping.ResultMap#getType() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
private Object createResultObject(ResultSetWrapper rsw, ResultMap resultMap, List<Class<?>> constructorArgTypes, List<Object> constructorArgs, String columnPrefix)
     throws SQLException {
//得到result type
   final Class<?> resultType = resultMap.getType();
   final MetaClass metaType = MetaClass.forClass(resultType);
   final List<ResultMapping> constructorMappings = resultMap.getConstructorResultMappings();
   if (typeHandlerRegistry.hasTypeHandler(resultType)) {
     //基本型
     return createPrimitiveResultObject(rsw, resultMap, columnPrefix);
   } else if (!constructorMappings.isEmpty()) {
     //有参数的构造函数
     return createParameterizedResultObject(rsw, resultType, constructorMappings, constructorArgTypes, constructorArgs, columnPrefix);
   } else if (resultType.isInterface() || metaType.hasDefaultConstructor()) {
     //普通bean类型
     return objectFactory.create(resultType);
   } else if (shouldApplyAutomaticMappings(resultMap, false)) {
     //自动映射
     return createByConstructorSignature(rsw, resultType, constructorArgTypes, constructorArgs, columnPrefix);
   }
   throw new ExecutorException("Do not know how to create an instance of " + resultType);
 }
Example 2
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object createResultObject(ResultSetWrapper rsw, ResultMap resultMap, List<Class<?>> constructorArgTypes, List<Object> constructorArgs, String columnPrefix)
     throws SQLException {
//得到result type
   final Class<?> resultType = resultMap.getType();
   final MetaClass metaType = MetaClass.forClass(resultType);
   final List<ResultMapping> constructorMappings = resultMap.getConstructorResultMappings();
   if (typeHandlerRegistry.hasTypeHandler(resultType)) {
     //基本型
     return createPrimitiveResultObject(rsw, resultMap, columnPrefix);
   } else if (!constructorMappings.isEmpty()) {
     //有参数的构造函数
     return createParameterizedResultObject(rsw, resultType, constructorMappings, constructorArgTypes, constructorArgs, columnPrefix);
   } else if (resultType.isInterface() || metaType.hasDefaultConstructor()) {
     //普通bean类型
     return objectFactory.create(resultType);
   } else if (shouldApplyAutomaticMappings(resultMap, false)) {
     //自动映射
     return createByConstructorSignature(rsw, resultType, constructorArgTypes, constructorArgs, columnPrefix);
   }
   throw new ExecutorException("Do not know how to create an instance of " + resultType);
 }
Example 3
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private Object createPrimitiveResultObject(ResultSetWrapper rsw, ResultMap resultMap, String columnPrefix) throws SQLException {
  final Class<?> resultType = resultMap.getType();
  final String columnName;
  if (!resultMap.getResultMappings().isEmpty()) {
    final List<ResultMapping> resultMappingList = resultMap.getResultMappings();
    final ResultMapping mapping = resultMappingList.get(0);
    columnName = prependPrefix(mapping.getColumn(), columnPrefix);
  } else {
    //因为只有1列，所以取得这一列的名字
    columnName = rsw.getColumnNames().get(0);
  }
  final TypeHandler<?> typeHandler = rsw.getTypeHandler(resultType, columnName);
  return typeHandler.getResult(rsw.getResultSet(), columnName);
}
Example 4
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private Object createPrimitiveResultObject(ResultSetWrapper rsw, ResultMap resultMap, String columnPrefix) throws SQLException {
  final Class<?> resultType = resultMap.getType();
  final String columnName;
  if (!resultMap.getResultMappings().isEmpty()) {
    final List<ResultMapping> resultMappingList = resultMap.getResultMappings();
    final ResultMapping mapping = resultMappingList.get(0);
    columnName = prependPrefix(mapping.getColumn(), columnPrefix);
  } else {
    //因为只有1列，所以取得这一列的名字
    columnName = rsw.getColumnNames().get(0);
  }
  final TypeHandler<?> typeHandler = rsw.getTypeHandler(resultType, columnName);
  return typeHandler.getResult(rsw.getResultSet(), columnName);
}
Example 5
Source File: EasyOrmSqlBuilder.java    From hsweb-framework with Apache License 2.0 4 votes vote down vote up 
protected RDBTableMetaData createMeta(String tableName, String resultMapId) {
//        tableName = getRealTableName(tableName);
        RDBDatabaseMetaData active = getActiveDatabase();
        String cacheKey = tableName.concat("-").concat(resultMapId);
        Map<String, RDBTableMetaData> cache = metaCache.computeIfAbsent(active, k -> new ConcurrentHashMap<>());

        RDBTableMetaData cached = cache.get(cacheKey);
        if (cached != null) {
            return cached;
        }

        RDBTableMetaData rdbTableMetaData = new RDBTableMetaData() {
            @Override
            public String getName() {
                //动态切换表名
                return getRealTableName(tableName);
            }
        };
        ResultMap resultMaps = MybatisUtils.getResultMap(resultMapId);
        rdbTableMetaData.setName(tableName);
        rdbTableMetaData.setDatabaseMetaData(active);

        List<ResultMapping> resultMappings = new ArrayList<>(resultMaps.getResultMappings());
        resultMappings.addAll(resultMaps.getIdResultMappings());

        resultMappings.stream()
                .map(mapping -> this.createColumn(null, null, mapping))
                .flatMap(Collection::stream)
                .forEach(rdbTableMetaData::addColumn);

        if (useJpa) {
            Class type = entityFactory == null ? resultMaps.getType() : entityFactory.getInstanceType(resultMaps.getType());
            RDBTableMetaData parseResult = JpaAnnotationParser.parseMetaDataFromEntity(type);
            if (parseResult != null) {
                for (RDBColumnMetaData columnMetaData : parseResult.getColumns()) {
                    if (rdbTableMetaData.findColumn(columnMetaData.getName()) == null) {
                        columnMetaData = columnMetaData.clone();
                        columnMetaData.setProperty("fromJpa", true);
                        rdbTableMetaData.addColumn(columnMetaData);
                    }
                }
            }
        }
        for (RDBColumnMetaData column : rdbTableMetaData.getColumns()) {
            //时间
            if (column.getJdbcType() == JDBCType.DATE || column.getJdbcType() == JDBCType.TIMESTAMP) {
                ValueConverter dateConvert = new DateTimeConverter("yyyy-MM-dd HH:mm:ss", column.getJavaType()) {
                    @Override
                    public Object getData(Object value) {
                        if (value instanceof Number) {
                            return new Date(((Number) value).longValue());
                        }
                        return super.getData(value);
                    }
                };
                column.setValueConverter(dateConvert);
            } else if (column.getJavaType() == boolean.class || column.getJavaType() == Boolean.class) {
                column.setValueConverter(new BooleanValueConverter(column.getJdbcType()));
                column.setProperty("typeHandler", NumberBooleanTypeHandler.class.getName());
            } else if (TypeUtils.isNumberType(column)) { //数字
                //数字
                column.setValueConverter(new NumberValueConverter(column.getJavaType()));
            }
        }
        cache.put(cacheKey, rdbTableMetaData);
        return rdbTableMetaData;
    }