本文整理了Java中javax.jdo.Transaction.getOptimistic()
方法的一些代码示例,展示了Transaction.getOptimistic()
的具体用法。这些代码示例主要来源于Github
/Stackoverflow
/Maven
等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Transaction.getOptimistic()
方法的具体详情如下:
包路径:javax.jdo.Transaction
类名称:Transaction
方法名:getOptimistic
[英]Optimistic transactions do not hold data store locks until commit time.
[中]乐观事务在提交之前不会持有数据存储锁。
代码示例来源:origin: jpox/jpox
/**
* Method to transition when serialised.
* @param sm State Manager
* @return The new LifeCycle state
*/
public LifeCycleState transitionSerialize(StateManager sm)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm, P_CLEAN);
}
return this;
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition when serialised.
* @param sm State Manager
* @return The new LifeCycle state
*/
public LifeCycleState transitionSerialize(StateManager sm)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm, P_CLEAN);
}
return this;
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition when serialised.
* @param sm State Manager
* @return The new LifeCycle state
*/
public LifeCycleState transitionSerialize(StateManager sm)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm, P_CLEAN);
}
return this;
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition when serialised.
* @param sm State Manager
* @return The new LifeCycle state
*/
public LifeCycleState transitionSerialize(StateManager sm)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm, P_CLEAN);
}
return this;
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fetchPlan the fetch plan to load fields
* @return new LifeCycle state.
**/
public LifeCycleState transitionRetrieve(StateManager sm, FetchPlan fetchPlan)
{
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (tx.getOptimistic())
{
return changeState(sm, P_NONTRANS);
}
return super.transitionRetrieve(sm, fetchPlan);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fetchPlan the fetch plan to load fields
* @return new LifeCycle state.
**/
public LifeCycleState transitionRetrieve(StateManager sm, FetchPlan fetchPlan)
{
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (tx.getOptimistic())
{
return changeState(sm, P_NONTRANS);
}
return super.transitionRetrieve(sm, fetchPlan);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fgOnly only the current fetch group fields
* @return new LifeCycle state.
*/
public LifeCycleState transitionRetrieve(StateManager sm, boolean fgOnly)
{
if (fgOnly)
{
sm.loadUnloadedFieldsInFetchPlan();
}
else
{
sm.loadUnloadedFields();
}
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (tx.getOptimistic())
{
return changeState(sm, P_NONTRANS);
}
return super.transitionRetrieve(sm, fgOnly);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fgOnly only the current fetch group fields
* @return new LifeCycle state.
*/
public LifeCycleState transitionRetrieve(StateManager sm, boolean fgOnly)
{
if (fgOnly)
{
sm.loadUnloadedFieldsInFetchPlan();
}
else
{
sm.loadUnloadedFields();
}
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (tx.getOptimistic())
{
return changeState(sm, P_NONTRANS);
}
return super.transitionRetrieve(sm, fgOnly);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to read-field state.
* @param sm StateManager.
* @param isLoaded if the field was previously loaded
* @return new LifeCycle state.
*/
public LifeCycleState transitionReadField(StateManager sm, boolean isLoaded)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (!tx.getOptimistic() && !tx.isActive())
{
if (!tx.getNontransactionalRead())
{
throw new JDOUserException(LOCALISER.msg("LifeCycle.HollowReadFieldNotAllowedNotActiveTx"), sm.getInternalObjectId());
}
}
return changeState(sm, P_NONTRANS);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to read-field state.
* @param sm StateManager.
* @param isLoaded if the field was previously loaded
* @return new LifeCycle state.
*/
public LifeCycleState transitionReadField(StateManager sm, boolean isLoaded)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.getOptimistic() && tx.isActive())
{
return changeState(sm, P_CLEAN);
}
else if (!tx.getOptimistic() && !tx.isActive())
{
if (!tx.getNontransactionalRead())
{
throw new JDOUserException(LOCALISER.msg("LifeCycle.HollowReadFieldNotAllowedNotActiveTx"), sm.getInternalObjectId());
}
}
return changeState(sm, P_NONTRANS);
}
代码示例来源:origin: jpox/jpox
query.getPersistenceManager().currentTransaction().getOptimistic() ||
fetchSize == FetchPlan.FETCH_SIZE_GREEDY)
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fetchPlan the fetch plan to load fields
* @return new LifeCycle state.
**/
public LifeCycleState transitionRetrieve(StateManager sm, FetchPlan fetchPlan)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return changeState(sm, P_CLEAN);
}
else if (tx.isActive() && tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return this;
}
else
{
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return this;
}
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to retrieve state.
* @param sm StateManager.
* @param fetchPlan the fetch plan to load fields
* @return new LifeCycle state.
**/
public LifeCycleState transitionRetrieve(StateManager sm, FetchPlan fetchPlan)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return changeState(sm, P_CLEAN);
}
else if (tx.isActive() && tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return this;
}
else
{
sm.loadUnloadedFieldsOfClassInFetchPlan(fetchPlan);
return this;
}
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to refresh state.
* @param sm StateManager.
* @return new LifeCycle state.
**/
public LifeCycleState transitionRefresh(StateManager sm)
{
sm.clearSavedFields();
sm.refreshFieldsInFetchPlan();
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm,P_CLEAN);
}
return changeState(sm,P_NONTRANS);
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to refresh state.
* @param sm StateManager.
* @return new LifeCycle state.
**/
public LifeCycleState transitionRefresh(StateManager sm)
{
sm.clearSavedFields();
sm.refreshFieldsInFetchPlan();
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (tx.isActive() && !tx.getOptimistic())
{
return changeState(sm,P_CLEAN);
}
return changeState(sm,P_NONTRANS);
}
代码示例来源:origin: jpox/jpox
if (tx.isActive() && !tx.getOptimistic())
else if (tx.isActive() && tx.getOptimistic())
代码示例来源:origin: jpox/jpox
if (tx.isActive() && !tx.getOptimistic())
else if (tx.isActive() && tx.getOptimistic())
代码示例来源:origin: jpox/jpox
/**
* Method to transition to read-field state.
* @param sm StateManager.
* @param isLoaded if the field was previously loaded.
* @return new LifeCycle state.
**/
public LifeCycleState transitionReadField(StateManager sm, boolean isLoaded)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.isActive() && !tx.getNontransactionalRead())
{
throw new JDOUserException(LOCALISER.msg("LifeCycle.PersistentNontransactionalReadFieldNotAllowedNotActiveTx"),sm.getInternalObjectId());
}
if (tx.isActive() && ! tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.refreshLoadedFields();
return changeState(sm, P_CLEAN);
}
else
{
return this;
}
}
代码示例来源:origin: jpox/jpox
/**
* Method to transition to read-field state.
* @param sm StateManager.
* @param isLoaded if the field was previously loaded.
* @return new LifeCycle state.
**/
public LifeCycleState transitionReadField(StateManager sm, boolean isLoaded)
{
Transaction tx = sm.getPersistenceManager().currentTransaction();
if (!tx.isActive() && !tx.getNontransactionalRead())
{
throw new JDOUserException(LOCALISER.msg("LifeCycle.PersistentNontransactionalReadFieldNotAllowedNotActiveTx"),sm.getInternalObjectId());
}
if (tx.isActive() && ! tx.getOptimistic())
{
// Save the fields for rollback.
sm.saveFields();
sm.refreshLoadedFields();
return changeState(sm, P_CLEAN);
}
else
{
return this;
}
}
代码示例来源:origin: tzaeschke/zoodb
@Test(expected=UnsupportedOperationException.class)
public void testOptimistic() {
PersistenceManager pm = TestTools.openPM();
pm.currentTransaction().begin();
//default
assertFalse(pm.currentTransaction().getOptimistic());
//should work fine
pm.currentTransaction().setOptimistic(true);
pm.currentTransaction().setOptimistic(false);
pm.currentTransaction().rollback();
TestTools.closePM();
}
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