Package org.apache.ibatis.reflection

Examples of org.apache.ibatis.reflection.MetaObject

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  private final StringBuilder sqlBuilder = new StringBuilder();
  private int uniqueNumber = 0;

  public DynamicContext(Configuration configuration, Object parameterObject) {
    if (parameterObject != null && !(parameterObject instanceof Map)) {
      MetaObject metaObject = configuration.newMetaObject(parameterObject);
      bindings = new ContextMap(metaObject);
    } else {
      bindings = new ContextMap(null);
    }
    bindings.put(PARAMETER_OBJECT_KEY, parameterObject);
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    if (parameterMappings.size() > 0 && parameterObject != null) {
      TypeHandlerRegistry typeHandlerRegistry = ms.getConfiguration().getTypeHandlerRegistry();
      if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
        cacheKey.update(parameterObject);
      } else {
        MetaObject metaObject = configuration.newMetaObject(parameterObject);
        for (ParameterMapping parameterMapping : parameterMappings) {
          String propertyName = parameterMapping.getProperty();
          if (metaObject.hasGetter(propertyName)) {
            cacheKey.update(metaObject.getValue(propertyName));
          } else if (boundSql.hasAdditionalParameter(propertyName)) {
            cacheKey.update(boundSql.getAdditionalParameter(propertyName));
          }
        }
      }
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  private void handleLocallyCachedOutputParameters(MappedStatement ms, CacheKey key, Object parameter) {
    if (ms.getStatementType() == StatementType.CALLABLE) {
      final Object cachedParameter = localOutputParameterCache.getObject(key);
      if (cachedParameter != null && parameter != null) {
        final MetaObject metaCachedParameter = MetaObject.forObject(cachedParameter);
        final MetaObject metaParameter = MetaObject.forObject(parameter);
        for (ParameterMapping parameterMapping : ms.getBoundSql(parameter).getParameterMappings()) {
          if (parameterMapping.getMode() != ParameterMode.IN) {
            final String parameterName = parameterMapping.getProperty();
            final Object cachedValue = metaCachedParameter.getValue(parameterName);
            metaParameter.setValue(parameterName, cachedValue);
          }
        }
      }
    }
  }
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  // HANDLE OUTPUT PARAMETER
  //

  public void handleOutputParameters(CallableStatement cs) throws SQLException {
    final Object parameterObject = parameterHandler.getParameterObject();
    final MetaObject metaParam = configuration.newMetaObject(parameterObject);
    final List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
    for (int i = 0; i < parameterMappings.size(); i++) {
      final ParameterMapping parameterMapping = parameterMappings.get(i);
      if (parameterMapping.getMode() == ParameterMode.OUT || parameterMapping.getMode() == ParameterMode.INOUT) {
        if ("java.sql.ResultSet".equalsIgnoreCase(parameterMapping.getJavaType().getName())) {
          handleRefCursorOutputParameter(cs, parameterMapping, i, metaParam);
        } else {
          final TypeHandler typeHandler = parameterMapping.getTypeHandler();
          if (typeHandler == null) {
            throw new ExecutorException("Type handler was null on parameter mapping for property " + parameterMapping.getProperty() + ".  " +
                "It was either not specified and/or could not be found for the javaType / jdbcType combination specified.");
          }
          metaParam.setValue(parameterMapping.getProperty(), typeHandler.getResult(cs, i + 1));
        }
      }
    }
  }
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    final List<String> mappedColumnNames = new ArrayList<String>();
    final List<String> unmappedColumnNames = new ArrayList<String>();
    final ResultLoaderMap lazyLoader = instantiateResultLoaderMap();
    Object resultObject = createResultObject(rs, resultMap, lazyLoader);
    if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
      final MetaObject metaObject = configuration.newMetaObject(resultObject);
      loadMappedAndUnmappedColumnNames(rs, resultMap, mappedColumnNames, unmappedColumnNames);
      boolean foundValues = resultMap.getConstructorResultMappings().size() > 0;
      if (!AutoMappingBehavior.NONE.equals(configuration.getAutoMappingBehavior())) {
        foundValues = applyAutomaticMappings(rs, unmappedColumnNames, metaObject) || foundValues;
      }
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    return typeHandler.getResult(rs, resultMapping.getColumn());
  }

  protected Object prepareCompositeKeyParameter(ResultSet rs, ResultMapping resultMapping, Class parameterType) throws SQLException {
    final Object parameterObject = instantiateParameterObject(parameterType);
    final MetaObject metaObject = configuration.newMetaObject(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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  //

  protected Object getRowValue(ResultSet rs, ResultMap resultMap, CacheKey rowKey) throws SQLException {
    if (globalRowValueCache.containsKey(rowKey)) {
      final Object resultObject = globalRowValueCache.get(rowKey);
      final MetaObject metaObject = configuration.newMetaObject(resultObject);
      applyNestedResultMappings(rs, resultMap, metaObject);
      return resultObject;
    } else {
      final List<String> mappedColumnNames = new ArrayList<String>();
      final List<String> unmappedColumnNames = new ArrayList<String>();
      final ResultLoaderMap lazyLoader = instantiateResultLoaderMap();
      Object resultObject = createResultObject(rs, resultMap, lazyLoader);
      if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
        final MetaObject metaObject = configuration.newMetaObject(resultObject);
        loadMappedAndUnmappedColumnNames(rs, resultMap, mappedColumnNames, unmappedColumnNames);
        boolean foundValues = resultMap.getConstructorResultMappings().size() > 0;
        if (AutoMappingBehavior.FULL.equals(configuration.getAutoMappingBehavior())) {
          foundValues = applyAutomaticMappings(rs, unmappedColumnNames, metaObject) || foundValues;
        }
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        String keyStatementName = ms.getId() + SELECT_KEY_SUFFIX;
        if (configuration.hasStatement(keyStatementName)) {

          if (keyStatement != null) {
            String keyProperty = keyStatement.getKeyProperty();
            final MetaObject metaParam = MetaObject.forObject(parameter);
            if (keyProperty != null && metaParam.hasSetter(keyProperty)) {
              // Do not close keyExecutor.
              // The transaction will be closed by parent executor.
              Executor keyExecutor = configuration.newExecutor(executor.getTransaction(), ExecutorType.SIMPLE);
              List values = keyExecutor.query(keyStatement, parameter, Executor.NO_ROW_OFFSET, Executor.NO_ROW_LIMIT, Executor.NO_RESULT_HANDLER);
              if (values.size() > 1) {
                throw new ExecutorException("Select statement for SelectKeyGenerator returned more than one value.");
              }
              metaParam.setValue(keyProperty, values.get(0));
            }
          }
        }
      }
    } catch (Exception e) {
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    try {
      final Configuration configuration = ms.getConfiguration();
      final TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
      if (parameter != null) {
        String keyProperty = ms.getKeyProperty();
        final MetaObject metaParam = MetaObject.forObject(parameter);
        if (keyProperty != null && metaParam.hasSetter(keyProperty)) {
          Class keyPropertyType = metaParam.getSetterType(keyProperty);
          TypeHandler th =  typeHandlerRegistry.getTypeHandler(keyPropertyType);
          if (th != null) {
            ResultSet rs = stmt.getGeneratedKeys();
            try {
              ResultSetMetaData rsmd = rs.getMetaData();
              int colCount = rsmd.getColumnCount();
              if (colCount > 0) {
                String colName = rsmd.getColumnName(1);
                while (rs.next()) {
                  Object value = th.getResult(rs,colName);
                  metaParam.setValue(keyProperty,value);
                }
              }
            } finally {
              try {
                if (rs != null) rs.close();
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    this.dataSource = new UnpooledDataSource();
  }

  public void setProperties(Properties properties) {
    Properties driverProperties = new Properties();
    MetaObject metaDataSource = MetaObject.forObject(dataSource);
    for (Object key : properties.keySet()) {
      String propertyName = (String) key;
      if (propertyName.startsWith(DRIVER_PROPERTY_PREFIX)) {
        String value = properties.getProperty(propertyName);
        driverProperties.setProperty(propertyName.substring(DRIVER_PROPERTY_PREFIX_LENGTH), value);
      } else if (metaDataSource.hasSetter(propertyName)) {
        String value = (String) properties.get(propertyName);
        Object convertedValue = convertValue(metaDataSource, propertyName, value);
        metaDataSource.setValue(propertyName, convertedValue);
      } else {
        throw new DataSourceException("Unkown DataSource property: " + propertyName);
      }
    }
    if (driverProperties.size() > 0) {
      metaDataSource.setValue("driverProperties", driverProperties);
    }
  }
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