Java Code Examples for org.apache.ibatis.mapping.ResultMapping#getNestedResultMapId()

The following examples show how to use org.apache.ibatis.mapping.ResultMapping#getNestedResultMapId() . 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 createParameterizedResultObject(ResultSetWrapper rsw, Class<?> resultType, List<ResultMapping> constructorMappings,
    List<Class<?>> constructorArgTypes, List<Object> constructorArgs, String columnPrefix) throws SQLException {
  boolean foundValues = false;
  for (ResultMapping constructorMapping : constructorMappings) {
    final Class<?> parameterType = constructorMapping.getJavaType();
    final String column = constructorMapping.getColumn();
    final Object value;
    if (constructorMapping.getNestedQueryId() != null) {
      value = getNestedQueryConstructorValue(rsw.getResultSet(), constructorMapping, columnPrefix);
    } else if (constructorMapping.getNestedResultMapId() != null) {
      final ResultMap resultMap = configuration.getResultMap(constructorMapping.getNestedResultMapId());
      value = getRowValue(rsw, resultMap);
    } else {
      final TypeHandler<?> typeHandler = constructorMapping.getTypeHandler();
      value = typeHandler.getResult(rsw.getResultSet(), prependPrefix(column, columnPrefix));
    }
    constructorArgTypes.add(parameterType);
    constructorArgs.add(value);
    foundValues = value != null || foundValues;
  }
  return foundValues ? objectFactory.create(resultType, constructorArgTypes, constructorArgs) : null;
}
Example 2
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
private void createRowKeyForMappedProperties(ResultMap resultMap, ResultSetWrapper rsw, CacheKey cacheKey, List<ResultMapping> resultMappings, String columnPrefix) throws SQLException {
  for (ResultMapping resultMapping : resultMappings) {
    if (resultMapping.getNestedResultMapId() != null && resultMapping.getResultSet() == null) {
      // Issue #392
      final ResultMap nestedResultMap = configuration.getResultMap(resultMapping.getNestedResultMapId());
      createRowKeyForMappedProperties(nestedResultMap, rsw, cacheKey, nestedResultMap.getConstructorResultMappings(),
          prependPrefix(resultMapping.getColumnPrefix(), columnPrefix));
    } else if (resultMapping.getNestedQueryId() == null) {
      final String column = prependPrefix(resultMapping.getColumn(), columnPrefix);
      final TypeHandler<?> th = resultMapping.getTypeHandler();
      List<String> mappedColumnNames = rsw.getMappedColumnNames(resultMap, columnPrefix);
      // Issue #114
      if (column != null && mappedColumnNames.contains(column.toUpperCase(Locale.ENGLISH))) {
        final Object value = th.getResult(rsw.getResultSet(), column);
        if (value != null) {
          cacheKey.update(column);
          cacheKey.update(value);
        }
      }
    }
  }
}
Example 3
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object getPropertyMappingValue(ResultSet rs, MetaObject metaResultObject, ResultMapping propertyMapping, ResultLoaderMap lazyLoader, String columnPrefix)
    throws SQLException {
  if (propertyMapping.getNestedQueryId() != null) {
    return getNestedQueryMappingValue(rs, metaResultObject, propertyMapping, lazyLoader, columnPrefix);
  } else if (propertyMapping.getResultSet() != null) {
    addPendingChildRelation(rs, metaResultObject, propertyMapping);
    return NO_VALUE;
  } else if (propertyMapping.getNestedResultMapId() != null) {
    // the user added a column attribute to a nested result map, ignore it
    return NO_VALUE;
  } else {
    final TypeHandler<?> typeHandler = propertyMapping.getTypeHandler();
    final String column = prependPrefix(propertyMapping.getColumn(), columnPrefix);
    return typeHandler.getResult(rs, column);
  }
}
Example 4
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object createParameterizedResultObject(ResultSetWrapper rsw, Class<?> resultType, List<ResultMapping> constructorMappings,
    List<Class<?>> constructorArgTypes, List<Object> constructorArgs, String columnPrefix) throws SQLException {
  boolean foundValues = false;
  for (ResultMapping constructorMapping : constructorMappings) {
    final Class<?> parameterType = constructorMapping.getJavaType();
    final String column = constructorMapping.getColumn();
    final Object value;
    if (constructorMapping.getNestedQueryId() != null) {
      value = getNestedQueryConstructorValue(rsw.getResultSet(), constructorMapping, columnPrefix);
    } else if (constructorMapping.getNestedResultMapId() != null) {
      final ResultMap resultMap = configuration.getResultMap(constructorMapping.getNestedResultMapId());
      value = getRowValue(rsw, resultMap);
    } else {
      final TypeHandler<?> typeHandler = constructorMapping.getTypeHandler();
      value = typeHandler.getResult(rsw.getResultSet(), prependPrefix(column, columnPrefix));
    }
    constructorArgTypes.add(parameterType);
    constructorArgs.add(value);
    foundValues = value != null || foundValues;
  }
  return foundValues ? objectFactory.create(resultType, constructorArgTypes, constructorArgs) : null;
}
Example 5
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private void createRowKeyForMappedProperties(ResultMap resultMap, ResultSetWrapper rsw, CacheKey cacheKey, List<ResultMapping> resultMappings, String columnPrefix) throws SQLException {
  for (ResultMapping resultMapping : resultMappings) {
    if (resultMapping.getNestedResultMapId() != null && resultMapping.getResultSet() == null) {
      // Issue #392
      final ResultMap nestedResultMap = configuration.getResultMap(resultMapping.getNestedResultMapId());
      createRowKeyForMappedProperties(nestedResultMap, rsw, cacheKey, nestedResultMap.getConstructorResultMappings(),
          prependPrefix(resultMapping.getColumnPrefix(), columnPrefix));
    } else if (resultMapping.getNestedQueryId() == null) {
      final String column = prependPrefix(resultMapping.getColumn(), columnPrefix);
      final TypeHandler<?> th = resultMapping.getTypeHandler();
      List<String> mappedColumnNames = rsw.getMappedColumnNames(resultMap, columnPrefix);
      // Issue #114
      if (column != null && mappedColumnNames.contains(column.toUpperCase(Locale.ENGLISH))) {
        final Object value = th.getResult(rsw.getResultSet(), column);
        if (value != null) {
          cacheKey.update(column);
          cacheKey.update(value);
        }
      }
    }
  }
}
Example 6
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private boolean applyPropertyMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, ResultLoaderMap lazyLoader, String columnPrefix)
    throws SQLException {
  final List<String> mappedColumnNames = rsw.getMappedColumnNames(resultMap, columnPrefix);
  boolean foundValues = false;
  final List<ResultMapping> propertyMappings = resultMap.getPropertyResultMappings();
  for (ResultMapping propertyMapping : propertyMappings) {
    String column = prependPrefix(propertyMapping.getColumn(), columnPrefix);
    if (propertyMapping.getNestedResultMapId() != null) {
      // the user added a column attribute to a nested result map, ignore it
      column = null;
    }      
    if (propertyMapping.isCompositeResult() 
        || (column != null && mappedColumnNames.contains(column.toUpperCase(Locale.ENGLISH))) 
        || propertyMapping.getResultSet() != null) {
      Object value = getPropertyMappingValue(rsw.getResultSet(), metaObject, propertyMapping, lazyLoader, columnPrefix);
      // issue #541 make property optional
      final String property = propertyMapping.getProperty();
      // issue #377, call setter on nulls
      if (value != DEFERED
          && property != null
          && (value != null || (configuration.isCallSettersOnNulls() && !metaObject.getSetterType(property).isPrimitive()))) {
        metaObject.setValue(property, value);
      }
      if (value != null || value == DEFERED) {
        foundValues = true;
      }
    }
  }
  return foundValues;
}
Example 7
Source File: EasyOrmSqlBuilder.java    From hsweb-framework with Apache License 2.0 4 votes vote down vote up 
private List<RDBColumnMetaData> createColumn(String prefix, String columnName, ResultMapping resultMapping) {
    List<RDBColumnMetaData> metaData = new ArrayList<>();
    if (resultMapping.getNestedQueryId() == null) {

        if (resultMapping.getNestedResultMapId() != null) {
            ResultMap nests = MybatisUtils.getResultMap(resultMapping.getNestedResultMapId());
            Set<ResultMapping> resultMappings = new HashSet<>(nests.getResultMappings());
            resultMappings.addAll(nests.getIdResultMappings());
            for (ResultMapping mapping : resultMappings) {
                metaData.addAll(createColumn(resultMapping.getProperty(),
                        org.springframework.util.StringUtils.hasText(resultMapping.getColumn())
                                ? resultMapping.getColumn()
                                : resultMapping.getProperty(),
                        mapping));
            }
            return metaData;
        }

        JDBCType jdbcType = JDBCType.VARCHAR;
        try {
            jdbcType = JDBCType.valueOf(resultMapping.getJdbcType().name());
        } catch (Exception e) {
            log.warn("can not parse jdbcType:{}", resultMapping.getJdbcType());
        }
        RDBColumnMetaData column = new RDBColumnMetaData();
        column.setJdbcType(jdbcType);
        column.setName(org.springframework.util.StringUtils.hasText(columnName)
                ? columnName.concat(".").concat(resultMapping.getColumn()) : resultMapping.getColumn());

        if (resultMapping.getTypeHandler() != null) {
            column.setProperty("typeHandler", resultMapping.getTypeHandler().getClass().getName());
        }
        if (!StringUtils.isNullOrEmpty(resultMapping.getProperty())) {
            column.setAlias(org.springframework.util.StringUtils.hasText(prefix)
                    ? prefix.concat(".").concat(resultMapping.getProperty()) : resultMapping.getProperty());

        }
        column.setJavaType(resultMapping.getJavaType());
        column.setProperty("resultMapping", resultMapping);
        metaData.add(column);
    }
    return metaData;
}
Example 8
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 4 votes vote down vote up 
private boolean applyNestedResultMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, String parentPrefix, CacheKey parentRowKey, boolean newObject) {
  boolean foundValues = false;
  for (ResultMapping resultMapping : resultMap.getPropertyResultMappings()) {
    final String nestedResultMapId = resultMapping.getNestedResultMapId();
    if (nestedResultMapId != null && resultMapping.getResultSet() == null) {
      try {
        final String columnPrefix = getColumnPrefix(parentPrefix, resultMapping);
        final ResultMap nestedResultMap = getNestedResultMap(rsw.getResultSet(), nestedResultMapId, columnPrefix);
        CacheKey rowKey = null;
        Object ancestorObject = null;
        if (ancestorColumnPrefix.containsKey(nestedResultMapId)) {
          rowKey = createRowKey(nestedResultMap, rsw, ancestorColumnPrefix.get(nestedResultMapId));
          ancestorObject = ancestorObjects.get(rowKey);
        }
        if (ancestorObject != null) { 
          if (newObject) {
            metaObject.setValue(resultMapping.getProperty(), ancestorObject);
          }
        } else {
          rowKey = createRowKey(nestedResultMap, rsw, columnPrefix);
          final CacheKey combinedKey = combineKeys(rowKey, parentRowKey);            
          Object rowValue = nestedResultObjects.get(combinedKey);
          boolean knownValue = (rowValue != null);
          final Object collectionProperty = instantiateCollectionPropertyIfAppropriate(resultMapping, metaObject);            
          if (anyNotNullColumnHasValue(resultMapping, columnPrefix, rsw.getResultSet())) {
            rowValue = getRowValue(rsw, nestedResultMap, combinedKey, rowKey, columnPrefix, rowValue);
            if (rowValue != null && !knownValue) {
              if (collectionProperty != null) {
                final MetaObject targetMetaObject = configuration.newMetaObject(collectionProperty);
                targetMetaObject.add(rowValue);
              } else {
                metaObject.setValue(resultMapping.getProperty(), rowValue);
              }
              foundValues = true;
            }
          }
        }
      } catch (SQLException e) {
        throw new ExecutorException("Error getting nested result map values for '" + resultMapping.getProperty() + "'.  Cause: " + e, e);
      }
    }
  }
  return foundValues;
}
Example 9
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 4 votes vote down vote up 
private boolean applyNestedResultMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, String parentPrefix, CacheKey parentRowKey, boolean newObject) {
  boolean foundValues = false;
  for (ResultMapping resultMapping : resultMap.getPropertyResultMappings()) {
    final String nestedResultMapId = resultMapping.getNestedResultMapId();
    if (nestedResultMapId != null && resultMapping.getResultSet() == null) {
      try {
        final String columnPrefix = getColumnPrefix(parentPrefix, resultMapping);
        final ResultMap nestedResultMap = getNestedResultMap(rsw.getResultSet(), nestedResultMapId, columnPrefix);
        CacheKey rowKey = null;
        Object ancestorObject = null;
        if (ancestorColumnPrefix.containsKey(nestedResultMapId)) {
          rowKey = createRowKey(nestedResultMap, rsw, ancestorColumnPrefix.get(nestedResultMapId));
          ancestorObject = ancestorObjects.get(rowKey);
        }
        if (ancestorObject != null) { 
          if (newObject) {
            metaObject.setValue(resultMapping.getProperty(), ancestorObject);
          }
        } else {
          rowKey = createRowKey(nestedResultMap, rsw, columnPrefix);
          final CacheKey combinedKey = combineKeys(rowKey, parentRowKey);            
          Object rowValue = nestedResultObjects.get(combinedKey);
          boolean knownValue = (rowValue != null);
          final Object collectionProperty = instantiateCollectionPropertyIfAppropriate(resultMapping, metaObject);            
          if (anyNotNullColumnHasValue(resultMapping, columnPrefix, rsw.getResultSet())) {
            rowValue = getRowValue(rsw, nestedResultMap, combinedKey, rowKey, columnPrefix, rowValue);
            if (rowValue != null && !knownValue) {
              if (collectionProperty != null) {
                final MetaObject targetMetaObject = configuration.newMetaObject(collectionProperty);
                targetMetaObject.add(rowValue);
              } else {
                metaObject.setValue(resultMapping.getProperty(), rowValue);
              }
              foundValues = true;
            }
          }
        }
      } catch (SQLException e) {
        throw new ExecutorException("Error getting nested result map values for '" + resultMapping.getProperty() + "'.  Cause: " + e, e);
      }
    }
  }
  return foundValues;
}