Java Code Examples for org.apache.ibatis.type.TypeHandler#getResult()

The following examples show how to use org.apache.ibatis.type.TypeHandler#getResult() . 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 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 2
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object prepareCompositeKeyParameter(ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix) throws SQLException {
  final Object parameterObject = instantiateParameterObject(parameterType);
  final MetaObject metaObject = configuration.newMetaObject(parameterObject);
  boolean foundValues = false;
  for (ResultMapping innerResultMapping : resultMapping.getComposites()) {
    final Class<?> propType = metaObject.getSetterType(innerResultMapping.getProperty());
    final TypeHandler<?> typeHandler = typeHandlerRegistry.getTypeHandler(propType);
    final Object propValue = typeHandler.getResult(rs, prependPrefix(innerResultMapping.getColumn(), columnPrefix));
    // issue #353 & #560 do not execute nested query if key is null
    if (propValue != null) {
      metaObject.setValue(innerResultMapping.getProperty(), propValue);
      foundValues = true;
    }
  }
  return foundValues ? parameterObject : null;
}
Example 3
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 4
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
private Object createByConstructorSignature(ResultSetWrapper rsw, Class<?> resultType, List<Class<?>> constructorArgTypes, List<Object> constructorArgs,
    String columnPrefix) throws SQLException {
  for (Constructor<?> constructor : resultType.getDeclaredConstructors()) {
    if (typeNames(constructor.getParameterTypes()).equals(rsw.getClassNames())) {
      boolean foundValues = false;
      for (int i = 0; i < constructor.getParameterTypes().length; i++) {
        Class<?> parameterType = constructor.getParameterTypes()[i];
        String columnName = rsw.getColumnNames().get(i);
        TypeHandler<?> typeHandler = rsw.getTypeHandler(parameterType, columnName);
        Object value = typeHandler.getResult(rsw.getResultSet(), prependPrefix(columnName, columnPrefix));
        constructorArgTypes.add(parameterType);
        constructorArgs.add(value);
        foundValues = value != null || foundValues;
      }
      //上面是构造函数创建对象，下面是对象工厂来创建
      return foundValues ? objectFactory.create(resultType, constructorArgTypes, constructorArgs) : null;
    }
  }
  throw new ExecutorException("No constructor found in " + resultType.getName() + " matching " + rsw.getClassNames());
}
Example 5
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 6 votes vote down vote up 
private Object prepareCompositeKeyParameter(ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix) throws SQLException {
  final Object parameterObject = instantiateParameterObject(parameterType);
  final MetaObject metaObject = configuration.newMetaObject(parameterObject);
  boolean foundValues = false;
  for (ResultMapping innerResultMapping : resultMapping.getComposites()) {
    final Class<?> propType = metaObject.getSetterType(innerResultMapping.getProperty());
    final TypeHandler<?> typeHandler = typeHandlerRegistry.getTypeHandler(propType);
    final Object propValue = typeHandler.getResult(rs, prependPrefix(innerResultMapping.getColumn(), columnPrefix));
    // issue #353 & #560 do not execute nested query if key is null
    if (propValue != null) {
      metaObject.setValue(innerResultMapping.getProperty(), propValue);
      foundValues = true;
    }
  }
  return foundValues ? parameterObject : null;
}
Example 6
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 6 votes vote down vote up 
private Object createByConstructorSignature(ResultSetWrapper rsw, Class<?> resultType, List<Class<?>> constructorArgTypes, List<Object> constructorArgs,
    String columnPrefix) throws SQLException {
  for (Constructor<?> constructor : resultType.getDeclaredConstructors()) {
    if (typeNames(constructor.getParameterTypes()).equals(rsw.getClassNames())) {
      boolean foundValues = false;
      for (int i = 0; i < constructor.getParameterTypes().length; i++) {
        Class<?> parameterType = constructor.getParameterTypes()[i];
        String columnName = rsw.getColumnNames().get(i);
        TypeHandler<?> typeHandler = rsw.getTypeHandler(parameterType, columnName);
        Object value = typeHandler.getResult(rsw.getResultSet(), prependPrefix(columnName, columnPrefix));
        constructorArgTypes.add(parameterType);
        constructorArgs.add(value);
        foundValues = value != null || foundValues;
      }
      //上面是构造函数创建对象，下面是对象工厂来创建
      return foundValues ? objectFactory.create(resultType, constructorArgTypes, constructorArgs) : null;
    }
  }
  throw new ExecutorException("No constructor found in " + resultType.getName() + " matching " + rsw.getClassNames());
}
Example 7
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 8
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 9
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 10
Source File: Jdbc3KeyGenerator.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private void populateKeys(ResultSet rs, MetaObject metaParam, String[] keyProperties, TypeHandler<?>[] typeHandlers) throws SQLException {
  for (int i = 0; i < keyProperties.length; i++) {
    TypeHandler<?> th = typeHandlers[i];
    if (th != null) {
      Object value = th.getResult(rs, i + 1);
      metaParam.setValue(keyProperties[i], value);
    }
  }
}
Example 11
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private Object prepareSimpleKeyParameter(ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix) throws SQLException {
  final TypeHandler<?> typeHandler;
  if (typeHandlerRegistry.hasTypeHandler(parameterType)) {
    typeHandler = typeHandlerRegistry.getTypeHandler(parameterType);
  } else {
    typeHandler = typeHandlerRegistry.getUnknownTypeHandler();
  }
  return typeHandler.getResult(rs, prependPrefix(resultMapping.getColumn(), columnPrefix));
}
Example 12
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 13
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private boolean applyAutomaticMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, String columnPrefix) throws SQLException {
  final List<String> unmappedColumnNames = rsw.getUnmappedColumnNames(resultMap, columnPrefix);
  boolean foundValues = false;
  for (String columnName : unmappedColumnNames) {
    String propertyName = columnName;
    if (columnPrefix != null && !columnPrefix.isEmpty()) {
      // When columnPrefix is specified,
      // ignore columns without the prefix.
      if (columnName.toUpperCase(Locale.ENGLISH).startsWith(columnPrefix)) {
        propertyName = columnName.substring(columnPrefix.length());
      } else {
        continue;
      }
    }
    final String property = metaObject.findProperty(propertyName, configuration.isMapUnderscoreToCamelCase());
    if (property != null && metaObject.hasSetter(property)) {
      final Class<?> propertyType = metaObject.getSetterType(property);
      if (typeHandlerRegistry.hasTypeHandler(propertyType)) {
        final TypeHandler<?> typeHandler = rsw.getTypeHandler(propertyType, columnName);
        //巧妙的用TypeHandler取得结果
        final Object value = typeHandler.getResult(rsw.getResultSet(), columnName);
        // issue #377, call setter on nulls
        if (value != null || configuration.isCallSettersOnNulls()) {
          if (value != null || !propertyType.isPrimitive()) {
            //然后巧妙的用反射来设置到对象
            metaObject.setValue(property, value);
          }
          foundValues = true;
        }
      }
    }
  }
  return foundValues;
}
Example 14
Source File: MultipleJdbc3KeyGenerator.java    From tk-mybatis with MIT License 5 votes vote down vote up 
private void populateKeys(ResultSet rs, MetaObject metaParam, String[] keyProperties, TypeHandler<?>[] typeHandlers) throws SQLException {
    for (int i = 0; i < keyProperties.length; i++) {
        TypeHandler<?> th = typeHandlers[i];
        if (th != null) {
            Object value = th.getResult(rs, i + 1);
            metaParam.setValue(keyProperties[i], value);
        }
    }
}
Example 15
Source File: Jdbc3KeyGenerator.java    From mybatis with Apache License 2.0 5 votes vote down vote up 
private void populateKeys(ResultSet rs, MetaObject metaParam, String[] keyProperties, TypeHandler<?>[] typeHandlers) throws SQLException {
  for (int i = 0; i < keyProperties.length; i++) {
    TypeHandler<?> th = typeHandlers[i];
    if (th != null) {
      Object value = th.getResult(rs, i + 1);
      metaParam.setValue(keyProperties[i], value);
    }
  }
}
Example 16
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private Object prepareSimpleKeyParameter(ResultSet rs, ResultMapping resultMapping, Class<?> parameterType, String columnPrefix) throws SQLException {
  final TypeHandler<?> typeHandler;
  if (typeHandlerRegistry.hasTypeHandler(parameterType)) {
    typeHandler = typeHandlerRegistry.getTypeHandler(parameterType);
  } else {
    typeHandler = typeHandlerRegistry.getUnknownTypeHandler();
  }
  return typeHandler.getResult(rs, prependPrefix(resultMapping.getColumn(), columnPrefix));
}
Example 17
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 18
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 votes vote down vote up 
private boolean applyAutomaticMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, String columnPrefix) throws SQLException {
  final List<String> unmappedColumnNames = rsw.getUnmappedColumnNames(resultMap, columnPrefix);
  boolean foundValues = false;
  for (String columnName : unmappedColumnNames) {
    String propertyName = columnName;
    if (columnPrefix != null && !columnPrefix.isEmpty()) {
      // When columnPrefix is specified,
      // ignore columns without the prefix.
      if (columnName.toUpperCase(Locale.ENGLISH).startsWith(columnPrefix)) {
        propertyName = columnName.substring(columnPrefix.length());
      } else {
        continue;
      }
    }
    final String property = metaObject.findProperty(propertyName, configuration.isMapUnderscoreToCamelCase());
    if (property != null && metaObject.hasSetter(property)) {
      final Class<?> propertyType = metaObject.getSetterType(property);
      if (typeHandlerRegistry.hasTypeHandler(propertyType)) {
        final TypeHandler<?> typeHandler = rsw.getTypeHandler(propertyType, columnName);
        //巧妙的用TypeHandler取得结果
        final Object value = typeHandler.getResult(rsw.getResultSet(), columnName);
        // issue #377, call setter on nulls
        if (value != null || configuration.isCallSettersOnNulls()) {
          if (value != null || !propertyType.isPrimitive()) {
            //然后巧妙的用反射来设置到对象
            metaObject.setValue(property, value);
          }
          foundValues = true;
        }
      }
    }
  }
  return foundValues;
}
Example 19
Source File: DefaultResultSetHandler.java    From mybaties with Apache License 2.0 5 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);   // TODO is that OK?
    return DEFERED;
  } else {
    final TypeHandler<?> typeHandler = propertyMapping.getTypeHandler();
    final String column = prependPrefix(propertyMapping.getColumn(), columnPrefix);
    return typeHandler.getResult(rs, column);
  }
}
Example 20
Source File: DefaultResultSetHandler.java    From mybatis with Apache License 2.0 4 votes vote down vote up 
private Object getDiscriminatorValue(ResultSet rs, Discriminator discriminator, String columnPrefix) throws SQLException {
  final ResultMapping resultMapping = discriminator.getResultMapping();
  final TypeHandler<?> typeHandler = resultMapping.getTypeHandler();
  return typeHandler.getResult(rs, prependPrefix(resultMapping.getColumn(), columnPrefix));
}