Java Code Examples for org.apache.ibatis.reflection.MetaObject#forObject()

The following examples show how to use org.apache.ibatis.reflection.MetaObject#forObject() . 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: PageResultInterceptor.java From joyqueue with Apache License 2.0

6 votes

@Override
public Object intercept(Invocation invocation) throws Throwable {
    // 目标对象转换
    ResultSetHandler resultSetHandler = (ResultSetHandler) invocation.getTarget();

    // 获取MappedStatement,Configuration对象
    MetaObject metaObject =
            MetaObject.forObject(resultSetHandler, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());
    MappedStatement mappedStatement = (MappedStatement) metaObject.getValue("mappedStatement");
    String statement = mappedStatement.getId();
    if (!isPageSql(statement,metaObject.getValue("boundSql.parameterObject"))) {
        return invocation.proceed();
    }

    // 获取分页参数
    QPageQuery pageQuery = (QPageQuery) metaObject.getValue("boundSql.parameterObject");

    List<PageResult> result = new ArrayList<PageResult>(1);
    PageResult page = new PageResult();
    page.setPagination(pageQuery.getPagination());
    page.setResult((List) invocation.proceed());
    result.add(page);

    return result;
}

Example 2

Source File: SortListInterceptor.java From QuickProject with Apache License 2.0

6 votes

@Override
public Object intercept(Invocation invocation) throws Throwable {
       List<Sort> sortList = getSortList();
       if (sortList == null || sortList.size() == 0) {
           return invocation.proceed();
       }

       Executor executor = (Executor) invocation.getTarget();
       Object[] args = invocation.getArgs();
       MappedStatement ms = (MappedStatement) args[0];
       Object parameter = args[1];
       RowBounds rowBounds = (RowBounds) args[2];
       ResultHandler resultHandler = (ResultHandler) args[3];

       // 计算修改BoundSql
       BoundSql boundSql = ms.getBoundSql(parameter);
       MetaObject boundSqlHandler = MetaObject.forObject(boundSql, new DefaultObjectFactory(), new DefaultObjectWrapperFactory());
       Dialect dialect = DialectParser.parse(ms.getConfiguration());
       String sql = (String) boundSqlHandler.getValue("sql");
       sql = dialect.addSortString(sql, sortList);
       boundSqlHandler.setValue("sql", sql);

       // 继续执行原来的代码
       CacheKey key = executor.createCacheKey(ms, parameter, rowBounds, boundSql);
       return executor.query(ms, parameter, rowBounds, resultHandler, key, boundSql);
}

Example 3

Source File: PageInterceptor.java From QuickProject with Apache License 2.0

6 votes

@Override
public Object intercept(Invocation invocation) throws Throwable {
	StatementHandler statementHandler = (StatementHandler) invocation.getTarget();
	BoundSql boundSql = statementHandler.getBoundSql();
	MetaObject metaStatementHandler = MetaObject.forObject(statementHandler, new DefaultObjectFactory(), new DefaultObjectWrapperFactory());
	RowBounds rowBounds = (RowBounds) metaStatementHandler.getValue("delegate.rowBounds");
	if ((rowBounds != null) && (rowBounds != RowBounds.DEFAULT)) {
           Configuration configuration = (Configuration) metaStatementHandler.getValue("delegate.configuration");
           Dialect dialect = DialectParser.parse(configuration);
           String sql = (String) metaStatementHandler.getValue("delegate.boundSql.sql");
           sql = dialect.addLimitString(sql, rowBounds.getOffset(), rowBounds.getLimit());

           metaStatementHandler.setValue("delegate.boundSql.sql", sql);
           metaStatementHandler.setValue("delegate.rowBounds.offset", RowBounds.NO_ROW_OFFSET);
           metaStatementHandler.setValue("delegate.rowBounds.limit", RowBounds.NO_ROW_LIMIT);
	}

	log.debug("SQL : " + boundSql.getSql());
	return invocation.proceed();
}

Example 4

Source File: MetaObjectWithReflectCache.java From Mybatis-PageHelper with MIT License

5 votes

public static MetaObject forObject(Object object) {
    try {
        return MetaObject.forObject(object, DEFAULT_OBJECT_FACTORY, DEFAULT_OBJECT_WRAPPER_FACTORY, DEFAULT_REFLECTOR_FACTORY);
    } catch (Exception e) {
        throw new PageException(e);
    }
}

Example 5

Source File: MybatisSqlInterceptor.java From taoshop with Apache License 2.0

5 votes

/**
 * 包装sql后，重置到invocation中
 * @param invocation
 * @param sql
 * @throws SQLException
 */
private void resetSql2Invocation(Invocation invocation, String sql) throws SQLException {
    final Object[] args = invocation.getArgs();
    MappedStatement statement = (MappedStatement) args[0];
    Object parameterObject = args[1];
    BoundSql boundSql = statement.getBoundSql(parameterObject);
    MappedStatement newStatement = newMappedStatement(statement, new BoundSqlSqlSource(boundSql));
    MetaObject msObject =  MetaObject.forObject(newStatement, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(),new DefaultReflectorFactory());
    msObject.setValue("sqlSource.boundSql.sql", sql);
    args[0] = newStatement;
}

Example 6

Source File: DefaultMapResultHandler.java From mybatis with Apache License 2.0

5 votes

@Override
public void handleResult(ResultContext context) {
  // TODO is that assignment always true?
  //得到一条记录
  //这边黄色警告没法去掉了？因为返回Object型
  final V value = (V) context.getResultObject();
  //MetaObject.forObject,包装一下记录
  //MetaObject是用反射来包装各种类型
  final MetaObject mo = MetaObject.forObject(value, objectFactory, objectWrapperFactory);
  // TODO is that assignment always true?
  final K key = (K) mo.getValue(mapKey);
  mappedResults.put(key, value);
  //这个类主要目的是把得到的List转为Map
}

Example 7

Source File: BeanWrapper.java From mybatis with Apache License 2.0

5 votes

@Override
public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
  MetaObject metaValue;
  Class<?> type = getSetterType(prop.getName());
  try {
    Object newObject = objectFactory.create(type);
    metaValue = MetaObject.forObject(newObject, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory());
    set(prop, newObject);
  } catch (Exception e) {
    throw new ReflectionException("Cannot set value of property '" + name + "' because '" + name + "' is null and cannot be instantiated on instance of " + type.getName() + ". Cause:" + e.toString(), e);
  }
  return metaValue;
}

Example 8

Source File: BeanWrapper.java From mybaties with Apache License 2.0

5 votes

@Override
public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
  MetaObject metaValue;
  Class<?> type = getSetterType(prop.getName());
  try {
    Object newObject = objectFactory.create(type);
    metaValue = MetaObject.forObject(newObject, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory());
    set(prop, newObject);
  } catch (Exception e) {
    throw new ReflectionException("Cannot set value of property '" + name + "' because '" + name + "' is null and cannot be instantiated on instance of " + type.getName() + ". Cause:" + e.toString(), e);
  }
  return metaValue;
}

Example 9

Source File: MetaObjectWithReflectCache.java From sqlhelper with GNU Lesser General Public License v3.0

5 votes

public static MetaObject forObject(Object object) {
    try {
        return MetaObject.forObject(object, DEFAULT_OBJECT_FACTORY, DEFAULT_OBJECT_WRAPPER_FACTORY, DEFAULT_REFLECTOR_FACTORY);
    } catch (Exception e) {
        throw new PageException(e);
    }
}

Example 10

Source File: DefaultMapResultHandler.java From mybaties with Apache License 2.0

5 votes

@Override
public void handleResult(ResultContext context) {
  // TODO is that assignment always true?
  //得到一条记录
  //这边黄色警告没法去掉了？因为返回Object型
  final V value = (V) context.getResultObject();
  //MetaObject.forObject,包装一下记录
  //MetaObject是用反射来包装各种类型
  final MetaObject mo = MetaObject.forObject(value, objectFactory, objectWrapperFactory);
  // TODO is that assignment always true?
  final K key = (K) mo.getValue(mapKey);
  mappedResults.put(key, value);
  //这个类主要目的是把得到的List转为Map
}

Example 11

Source File: QueryInformation.java From sinavi-jfw with Apache License 2.0

5 votes

/**
 * コンストラクタです。
 * MyBatisの{@link StatementHandler}の解析に失敗した場合に{@link InternalException}をスローします。
 * @param statementHandler {@link StatementHandler}
 */
public QueryInformation(StatementHandler statementHandler) {
    try {
        this.typeHandlerRegistry = new TypeHandlerRegistry();
        this.statementHandler = getConcreteStatementHandler(statementHandler);
        this.mappedStatement = getMappedStatement(this.statementHandler);
        this.boundSql = this.statementHandler.getBoundSql();
        this.parameterObject = this.boundSql.getParameterObject();
        this.parameterMappingList = boundSql.getParameterMappings();
        this.sqlCommandType = mappedStatement.getSqlCommandType();
        this.statementType = mappedStatement.getStatementType();
        this.metaObject = parameterObject == null ? null : MetaObject.forObject(parameterObject, new DefaultObjectFactory(), new DefaultObjectWrapperFactory());

        switch (statementType) {
            case STATEMENT:
                this.query = boundSql.getSql();
                break;
            case PREPARED:
                this.preparedQuery = boundSql.getSql();
                break;
            case CALLABLE:
                this.callableQuery = boundSql.getSql();
                break;
            default:
                throw new InternalException(QueryInformation.class, "");
        }
    } catch (Exception e) {
        throw new InternalException(QueryInformation.class, "E-JDBC-MYBATIS#0002", e);
    }
}

Example 12

Source File: Configuration.java From mybaties with Apache License 2.0

4 votes

public MetaObject newMetaObject(Object object) {
  return MetaObject.forObject(object, objectFactory, objectWrapperFactory);
}

Example 13

Source File: Configuration.java From mybatis with Apache License 2.0

4 votes

public MetaObject newMetaObject(Object object) {
  return MetaObject.forObject(object, objectFactory, objectWrapperFactory);
}

Example 14

Source File: MapWrapper.java From mybatis with Apache License 2.0

4 votes

@Override
public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
  HashMap<String, Object> map = new HashMap<String, Object>();
  set(prop, map);
  return MetaObject.forObject(map, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory());
}

Example 15

Source File: MapWrapper.java From mybaties with Apache License 2.0

4 votes

@Override
public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
  HashMap<String, Object> map = new HashMap<String, Object>();
  set(prop, map);
  return MetaObject.forObject(map, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory());
}

Example 16

Source File: Configuration.java From Shop-for-JavaWeb with MIT License

4 votes

public MetaObject newMetaObject(Object object) {
	return MetaObject
			.forObject(object, objectFactory, objectWrapperFactory);
}

Example 17

Source File: MyBatisUtils.java From mybatis-boost with MIT License

4 votes

private static MetaObject forObject(Object object) {
    return MetaObject.forObject(object, SystemMetaObject.DEFAULT_OBJECT_FACTORY,
            SystemMetaObject.DEFAULT_OBJECT_WRAPPER_FACTORY, DEFAULT_REFLECTOR_FACTORY);
}

Example 18

Source File: PageStatementInterceptor.java From joyqueue with Apache License 2.0

4 votes

@Override
public Object intercept(Invocation invocation) throws Throwable {
    StatementHandler handler = (StatementHandler) invocation.getTarget();

    // 获取MappedStatement,Configuration对象
    MetaObject metaObject =
            MetaObject.forObject(handler, new DefaultObjectFactory(), new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());
    MappedStatement mappedStatement = (MappedStatement) metaObject.getValue("delegate.mappedStatement");
    String statement = mappedStatement.getId();
    if (!isPageSql(statement,metaObject.getValue("boundSql.parameterObject"))) {
        return invocation.proceed();
    }

    Configuration configuration = (Configuration) metaObject.getValue("delegate.configuration");
    Executor executor = (Executor) metaObject.getValue("delegate.executor");

    // 获取分页参数
    BoundSql boundSql = handler.getBoundSql();
    QPageQuery pageQuery = (QPageQuery) boundSql.getParameterObject();
    String countStatement = buildCountStatement(statement);
    List<Integer> counts = executor.query(configuration.
            getMappedStatement(countStatement), pageQuery, RowBounds.DEFAULT, null);

    int count = 0;
    if (counts != null && !counts.isEmpty()) {
        count = counts.get(0) == null ? 0 : counts.get(0);
    }

    if (pageQuery.getPagination() == null) {
        pageQuery.setPagination(new Pagination());
    }
    pageQuery.getPagination().setTotalRecord(count);

    String sql = boundSql.getSql();
    if (logger.isDebugEnabled()) {
        logger.debug("raw SQL : " + sql);
    }

    if (sql == null || sql.isEmpty() || sql.contains(" limit ")) {
        return invocation.proceed();
    }

    String originalSql = (String) metaObject.getValue("delegate.boundSql.sql");
    metaObject.setValue("delegate.boundSql.sql",
            getLimitString(originalSql, pageQuery.getPagination().getStart(),
                    pageQuery.getPagination().getSize()));
    metaObject.setValue("delegate.rowBounds.offset", RowBounds.NO_ROW_OFFSET);
    metaObject.setValue("delegate.rowBounds.limit", RowBounds.NO_ROW_LIMIT);

    if (logger.isDebugEnabled()) {
        logger.debug("pagination SQL : " + sql);
    }
    return invocation.proceed();
}

Example 19

Source File: SqlUtil.java From genericdao with Artistic License 2.0

2 votes

/**
 * 反射对象，增加对低版本Mybatis的支持
 *
 * @param object 反射对象
 * @return
 */
private static MetaObject forObject(Object object) {
    return MetaObject.forObject(object, DEFAULT_OBJECT_FACTORY, DEFAULT_OBJECT_WRAPPER_FACTORY,DEFAULT_REFLECTION_FACTORY);
}

Example 20

Source File: MapperEnhancer.java From tsharding with MIT License

2 votes

/**
 * 反射对象，增加对低版本Mybatis的支持
 *
 * @param object 反射对象
 * @return
 */
public static MetaObject forObject(Object object) {
    return MetaObject.forObject(object, DEFAULT_OBJECT_FACTORY, DEFAULT_OBJECT_WRAPPER_FACTORY);
}