org.pinus4j.datalayer.query.jdbc

Class AbstractJdbcQuery

java.lang.Object

org.pinus4j.datalayer.AbstractDataLayer

org.pinus4j.datalayer.query.jdbc.AbstractJdbcQuery

All Implemented Interfaces:

IDataLayer, IDataQuery

Direct Known Subclasses:

AbstractRecordIterator, GlobalJdbcQueryImpl, ShardingJdbcQueryImpl

public abstract class AbstractJdbcQuery
extends AbstractDataLayer
implements IDataQuery

分库分表查询抽象类. 此类封装了分库分表查询的公共操作. 子类可以针对主库、从库实现相关的查询.

Author:

duanbn

Field Summary

Fields inherited from class org.pinus4j.datalayer.AbstractDataLayer

dbCluster, entityMetaManager, primaryCache, secondCache, txManager

Constructor Summary

Constructors

Constructor and Description
AbstractJdbcQuery()

Method Summary

Methods

Modifier and Type	Method and Description
private <T> Map<EntityPK,T>	_selectByPks(IDBResource dbResource, Class<T> clazz, EntityPK[] pks, List<DefaultQueryImpl.OrderBy> order)
private Number	_selectCount(IDBResource dbResource, Class<?> clazz) 获取全局表的count数
protected <T> Map<EntityPK,T>	selectByPksWithCache(IDBResource dbResource, Class<T> clazz, EntityPK[] pks, List<DefaultQueryImpl.OrderBy> order, boolean useCache)
protected <T> List<T>	selectByQuery(IDBResource dbResource, IQuery<T> query, Class<T> clazz)
protected List<Map<String,Object>>	selectBySql(IDBResource dbResource, SQL sql)
protected <T> Number	selectCountByQuery(IQuery<T> query, IDBResource dbResource, Class<T> clazz)
protected Number	selectCountWithCache(IDBResource dbResource, Class<?> clazz, boolean useCache) 带缓存的获取全局表count
protected <T> EntityPK[]	selectPksByQuery(IDBResource dbResource, IQuery<T> query, Class<T> clazz)

Methods inherited from class org.pinus4j.datalayer.AbstractDataLayer

fillParam, getDBCluster, getPrimaryCache, getSecondCache, getTransactionManager, isCacheAvailable, isCacheAvailable, isSecondCacheAvailable, isSecondCacheAvailable, setDBCluster, setPrimaryCache, setSecondCache, setTransactionManager

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.pinus4j.datalayer.IDataLayer

getDBCluster, getPrimaryCache, getSecondCache, getTransactionManager, setDBCluster, setPrimaryCache, setSecondCache, setTransactionManager

Constructor Detail

AbstractJdbcQuery

public AbstractJdbcQuery()

Method Detail

_selectCount

private Number _selectCount(IDBResource dbResource,
                  Class<?> clazz)
                     throws SQLException

获取全局表的count数

Parameters:

conn -

clazz -

Returns:

count数

Throws:

SQLException

selectCountWithCache

protected Number selectCountWithCache(IDBResource dbResource,
                          Class<?> clazz,
                          boolean useCache)
                               throws SQLException

带缓存的获取全局表count

Parameters:

conn -

clusterName -

clazz -

Returns:

count数

Throws:

SQLException

selectCountByQuery

protected <T> Number selectCountByQuery(IQuery<T> query,
                            IDBResource dbResource,
                            Class<T> clazz)
                             throws SQLException

Throws:

SQLException

_selectByPks

private <T> Map<EntityPK,T> _selectByPks(IDBResource dbResource,
                               Class<T> clazz,
                               EntityPK[] pks,
                               List<DefaultQueryImpl.OrderBy> order)
                              throws SQLException

Throws:

SQLException

selectByPksWithCache

protected <T> Map<EntityPK,T> selectByPksWithCache(IDBResource dbResource,
                                       Class<T> clazz,
                                       EntityPK[] pks,
                                       List<DefaultQueryImpl.OrderBy> order,
                                       boolean useCache)
                                        throws SQLException

Throws:

SQLException

selectBySql

protected List<Map<String,Object>> selectBySql(IDBResource dbResource,
                                   SQL sql)
                                        throws SQLException

Throws:

SQLException

selectByQuery

protected <T> List<T> selectByQuery(IDBResource dbResource,
                        IQuery<T> query,
                        Class<T> clazz)
                         throws SQLException

Throws:

SQLException

selectPksByQuery

protected <T> EntityPK[] selectPksByQuery(IDBResource dbResource,
                              IQuery<T> query,
                              Class<T> clazz)
                               throws SQLException

Throws:

SQLException