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

The following examples show how to use org.apache.ibatis.mapping.ResultMap#getPropertyResultMappings() . 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, ResultLoaderMap lazyLoader, String columnPrefix) throws SQLException {
  final List<Class<?>> constructorArgTypes = new ArrayList<Class<?>>();
  final List<Object> constructorArgs = new ArrayList<Object>();
  final Object resultObject = createResultObject(rsw, resultMap, constructorArgTypes, constructorArgs, columnPrefix);
  if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
    final List<ResultMapping> propertyMappings = resultMap.getPropertyResultMappings();
    for (ResultMapping propertyMapping : propertyMappings) {
      // issue gcode #109 && issue #149
      if (propertyMapping.getNestedQueryId() != null && propertyMapping.isLazy()) {
        //TODO 使用代理(cglib/javaassist)
        return configuration.getProxyFactory().createProxy(resultObject, lazyLoader, configuration, objectFactory, constructorArgTypes, constructorArgs);
      }
    }
  }
  return resultObject;
}
Example 2
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 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) {
    final String column = prependPrefix(propertyMapping.getColumn(), columnPrefix);
    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 != NO_VALUE && property != null && (value != null || configuration.isCallSettersOnNulls())) {
        if (value != null || !metaObject.getSetterType(property).isPrimitive()) {
          metaObject.setValue(property, value);
        }
        foundValues = true;
      }
    }
  }
  return foundValues;
}
Example 3
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object createResultObject(ResultSetWrapper rsw, ResultMap resultMap, ResultLoaderMap lazyLoader, String columnPrefix) throws SQLException {
  final List<Class<?>> constructorArgTypes = new ArrayList<Class<?>>();
  final List<Object> constructorArgs = new ArrayList<Object>();
  final Object resultObject = createResultObject(rsw, resultMap, constructorArgTypes, constructorArgs, columnPrefix);
  if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
    final List<ResultMapping> propertyMappings = resultMap.getPropertyResultMappings();
    for (ResultMapping propertyMapping : propertyMappings) {
      // issue gcode #109 && issue #149
      if (propertyMapping.getNestedQueryId() != null && propertyMapping.isLazy()) {
        //TODO 使用代理(cglib/javaassist)
        return configuration.getProxyFactory().createProxy(resultObject, lazyLoader, configuration, objectFactory, constructorArgTypes, constructorArgs);
      }
    }
  }
  return resultObject;
}
Example 4
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 5
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private List<ResultMapping> getResultMappingsForRowKey(ResultMap resultMap) {
  List<ResultMapping> resultMappings = resultMap.getIdResultMappings();
  if (resultMappings.size() == 0) {
    resultMappings = resultMap.getPropertyResultMappings();
  }
  return resultMappings;
}
Example 6
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private List<ResultMapping> getResultMappingsForRowKey(ResultMap resultMap) {
  List<ResultMapping> resultMappings = resultMap.getIdResultMappings();
  if (resultMappings.size() == 0) {
    resultMappings = resultMap.getPropertyResultMappings();
  }
  return resultMappings;
}
Example 7
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 8
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;
}