net.ymate.platform.persistence.jdbc.base.impl

Class DefaultQueryOperator<T>

java.lang.Object

net.ymate.platform.persistence.jdbc.base.AbstractOperator

net.ymate.platform.persistence.jdbc.base.impl.DefaultQueryOperator<T>

Type Parameters:

T - 元素类型

All Implemented Interfaces:

IOperator, IQueryOperator<T>

public class DefaultQueryOperator<T>
extends AbstractOperator
implements IQueryOperator<T>

数据库查询操作器接口实现

Author:

刘镇 (suninformation@163.com) on 2011-9-23 上午09:32:37

Field Summary

Fields inherited from class net.ymate.platform.persistence.jdbc.base.AbstractOperator

executed, expenseTime, sql

Constructor Summary

Constructors

Constructor and Description
DefaultQueryOperator(String sql, IDatabaseConnectionHolder connectionHolder, IAccessorConfig accessorConfig, IResultSetHandler<T> resultSetHandler)
DefaultQueryOperator(String sql, IDatabaseConnectionHolder connectionHolder, IAccessorConfig accessorConfig, IResultSetHandler<T> resultSetHandler, int maxRow)
DefaultQueryOperator(String sql, IDatabaseConnectionHolder connectionHolder, IResultSetHandler<T> resultSetHandler)
DefaultQueryOperator(String sql, IDatabaseConnectionHolder connectionHolder, IResultSetHandler<T> resultSetHandler, int maxRow)

Method Summary

Modifier and Type	Method and Description
protected int	doExecute() 执行具体的操作过程
int	getMaxRow() 结果集返回最大记录数，默认为0，表示没有任何限制
List<T>	getResultSet() 获取查询结果
IResultSetHandler<T>	getResultSetHandler() 获取结果集数据处理器

Methods inherited from class net.ymate.platform.persistence.jdbc.base.AbstractOperator

addParameter, addParameter, doAppendStackTraces, doSetParameters, execute, getAccessorConfig, getConnectionHolder, getExpenseTime, getParameters, getSQL, isExecuted, serializeParameters, setAccessorConfig

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.ymate.platform.persistence.jdbc.base.IOperator

addParameter, addParameter, execute, getAccessorConfig, getConnectionHolder, getExpenseTime, getParameters, getSQL, isExecuted, setAccessorConfig

Constructor Detail

DefaultQueryOperator

public DefaultQueryOperator(String sql,
                            IDatabaseConnectionHolder connectionHolder,
                            IResultSetHandler<T> resultSetHandler)

DefaultQueryOperator

public DefaultQueryOperator(String sql,
                            IDatabaseConnectionHolder connectionHolder,
                            IResultSetHandler<T> resultSetHandler,
                            int maxRow)

DefaultQueryOperator

public DefaultQueryOperator(String sql,
                            IDatabaseConnectionHolder connectionHolder,
                            IAccessorConfig accessorConfig,
                            IResultSetHandler<T> resultSetHandler)

DefaultQueryOperator

public DefaultQueryOperator(String sql,
                            IDatabaseConnectionHolder connectionHolder,
                            IAccessorConfig accessorConfig,
                            IResultSetHandler<T> resultSetHandler,
                            int maxRow)

Method Detail

doExecute

protected int doExecute()
                 throws Exception

Description copied from class: AbstractOperator

执行具体的操作过程

Specified by:

doExecute in class AbstractOperator

Returns:

返回影响行数

Throws:

Exception - 执行过程中产生的异常

getResultSetHandler

public IResultSetHandler<T> getResultSetHandler()

Description copied from interface: IQueryOperator

获取结果集数据处理器

Specified by:

getResultSetHandler in interface IQueryOperator<T>

Returns:

返回结果集数据处理对象

getResultSet

public List<T> getResultSet()

Description copied from interface: IQueryOperator

获取查询结果

Specified by:

getResultSet in interface IQueryOperator<T>

Returns:

返回查询结果

getMaxRow

public int getMaxRow()

Description copied from interface: IQueryOperator

结果集返回最大记录数，默认为0，表示没有任何限制

Specified by:

getMaxRow in interface IQueryOperator<T>

Returns:

返回结果集最大记录数