Package org.apache.ibatis.executor

Class BaseExecutor

java.lang.Object

org.apache.ibatis.executor.BaseExecutor

All Implemented Interfaces:

Executor

Direct Known Subclasses:

BatchExecutor, ReuseExecutor, SimpleExecutor

public abstract class BaseExecutor
extends Object
implements Executor

Author:

Clinton Begin

Field Summary

Fields

Modifier and Type	Field	Description
protected Configuration	configuration
protected ConcurrentLinkedQueue<org.apache.ibatis.executor.BaseExecutor.DeferredLoad>	deferredLoads
protected PerpetualCache	localCache
protected PerpetualCache	localOutputParameterCache
protected int	queryStack
protected Transaction	transaction
protected Executor	wrapper

Fields inherited from interface org.apache.ibatis.executor.Executor

NO_RESULT_HANDLER

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BaseExecutor(Configuration configuration, Transaction transaction)

Method Summary

Modifier and Type	Method	Description
protected void	applyTransactionTimeout(Statement statement)	Apply a transaction timeout.
void	clearLocalCache()
void	close(boolean forceRollback)
protected void	closeStatement(Statement statement)
void	commit(boolean required)
CacheKey	createCacheKey(MappedStatement ms, Object parameterObject, RowBounds rowBounds, BoundSql boundSql)
void	deferLoad(MappedStatement ms, MetaObject resultObject, String property, CacheKey key, Class<?> targetType)
protected abstract List<BatchResult>	doFlushStatements(boolean isRollback)
protected abstract <E> List<E>	doQuery(MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql)
protected abstract <E> Cursor<E>	doQueryCursor(MappedStatement ms, Object parameter, RowBounds rowBounds, BoundSql boundSql)
protected abstract int	doUpdate(MappedStatement ms, Object parameter)
List<BatchResult>	flushStatements()
List<BatchResult>	flushStatements(boolean isRollBack)
protected Connection	getConnection(Log statementLog)
Transaction	getTransaction()
boolean	isCached(MappedStatement ms, CacheKey key)
boolean	isClosed()
<E> List<E>	query(MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler)
<E> List<E>	query(MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, CacheKey key, BoundSql boundSql)
<E> Cursor<E>	queryCursor(MappedStatement ms, Object parameter, RowBounds rowBounds)
void	rollback(boolean required)
void	setExecutorWrapper(Executor wrapper)
int	update(MappedStatement ms, Object parameter)

Methods inherited from class java.lang.Object

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

Field Details

transaction

protected Transaction transaction

wrapper

protected Executor wrapper

deferredLoads

protected ConcurrentLinkedQueue<org.apache.ibatis.executor.BaseExecutor.DeferredLoad> deferredLoads

localCache

protected PerpetualCache localCache

localOutputParameterCache

protected PerpetualCache localOutputParameterCache

configuration

protected Configuration configuration

queryStack

protected int queryStack

Constructor Details

BaseExecutor

protected BaseExecutor(Configuration configuration,
 Transaction transaction)

Method Details

getTransaction

public Transaction getTransaction()

Specified by:

getTransaction in interface Executor

close

public void close(boolean forceRollback)

Specified by:

close in interface Executor

isClosed

public boolean isClosed()

Specified by:

isClosed in interface Executor

update

public int update(MappedStatement ms,
 Object parameter)
           throws SQLException

Specified by:

update in interface Executor

Throws:

SQLException

flushStatements

public List<BatchResult> flushStatements()
                                  throws SQLException

Specified by:

flushStatements in interface Executor

Throws:

SQLException

flushStatements

public List<BatchResult> flushStatements(boolean isRollBack)
                                  throws SQLException

Throws:

SQLException

query

public <E> List<E> query(MappedStatement ms,
 Object parameter,
 RowBounds rowBounds,
 ResultHandler resultHandler)
                  throws SQLException

Specified by:

query in interface Executor

Throws:

SQLException

query

public <E> List<E> query(MappedStatement ms,
 Object parameter,
 RowBounds rowBounds,
 ResultHandler resultHandler,
 CacheKey key,
 BoundSql boundSql)
                  throws SQLException

Specified by:

query in interface Executor

Throws:

SQLException

queryCursor

public <E> Cursor<E> queryCursor(MappedStatement ms,
 Object parameter,
 RowBounds rowBounds)
                          throws SQLException

Specified by:

queryCursor in interface Executor

Throws:

SQLException

deferLoad

public void deferLoad(MappedStatement ms,
 MetaObject resultObject,
 String property,
 CacheKey key,
 Class<?> targetType)

Specified by:

deferLoad in interface Executor

createCacheKey

public CacheKey createCacheKey(MappedStatement ms,
 Object parameterObject,
 RowBounds rowBounds,
 BoundSql boundSql)

Specified by:

createCacheKey in interface Executor

isCached

public boolean isCached(MappedStatement ms,
 CacheKey key)

Specified by:

isCached in interface Executor

commit

public void commit(boolean required)
            throws SQLException

Specified by:

commit in interface Executor

Throws:

SQLException

rollback

public void rollback(boolean required)
              throws SQLException

Specified by:

rollback in interface Executor

Throws:

SQLException

clearLocalCache

public void clearLocalCache()

Specified by:

clearLocalCache in interface Executor

doUpdate

protected abstract int doUpdate(MappedStatement ms,
 Object parameter)
                         throws SQLException

Throws:

SQLException

doFlushStatements

protected abstract List<BatchResult> doFlushStatements(boolean isRollback)
                                                throws SQLException

Throws:

SQLException

doQuery

protected abstract <E> List<E> doQuery(MappedStatement ms,
 Object parameter,
 RowBounds rowBounds,
 ResultHandler resultHandler,
 BoundSql boundSql)
                                throws SQLException

Throws:

SQLException

doQueryCursor

protected abstract <E> Cursor<E> doQueryCursor(MappedStatement ms,
 Object parameter,
 RowBounds rowBounds,
 BoundSql boundSql)
                                        throws SQLException

Throws:

SQLException

closeStatement

protected void closeStatement(Statement statement)

applyTransactionTimeout

protected void applyTransactionTimeout(Statement statement)
                                throws SQLException

Apply a transaction timeout.

Parameters:

statement - a current statement

Throws:

SQLException - if a database access error occurs, this method is called on a closed Statement

Since:

3.4.0

See Also:

• StatementUtil.applyTransactionTimeout(Statement, Integer, Integer)

getConnection

protected Connection getConnection(Log statementLog)
                            throws SQLException

Throws:

SQLException

setExecutorWrapper

public void setExecutorWrapper(Executor wrapper)

Specified by:

setExecutorWrapper in interface Executor