Re: Model Inconsisten

[Andy Seaborne]

On 10/08/16 12:57, Abduladem Eljamel wrote:

Hi,,I hope everyone is fine.I would like to know the difference between code 1 
andcode 2 below. When can each one be used for?
What is "NoSuchElementException" Exception andmodel inconsistent?If there is a 
reference to cite the explanation,please tell me. ThanksAbdul---------------------
code 1:
Dataset dataset = TDBFactory.createDataset(location);Model model = 
dataset.getDefaultModel();
try {        dataset.begin(ReadWrite.WRITE) ;
       // write triples to model
       dataset.commit() ;
 } finally {
       dataset.end() ;
 }----------code 2:Dataset dataset = TDBFactory.createDataset(location);Model 
model = dataset.getDefaultModel();try {        
model.enterCriticalSection(Lock.WRITE);
        // write triples to model
        model.commit();
        TDB.sync(model);
} finally {
        model.leaveCriticalSection();
}

The correct form (all 3.x versions):

Dataset dataset = TDBFactory.createDataset(location);
dataset.begin(ReadWrite.WRITE) ;
try {
    // Inside begin-commit.
    Model model = dataset.getDefaultModel();
    // write triples to model
    dataset.commit() ;
 } finally {
    dataset.end() ;
}

        Andy