Examples with TxStateVisitor org.neo4j.storageengine.api.txstate.TxStateVisitor used on opensource projects

Example 1 with TxStateVisitor

use of org.neo4j.storageengine.api.txstate.TxStateVisitor in project neo4j by neo4j.

the class RecordStorageEngine method createCommands.

@SuppressWarnings("resource")
@Override
public void createCommands(Collection<StorageCommand> commands, ReadableTransactionState txState, StorageStatement storageStatement, ResourceLocker locks, long lastTransactionIdWhenStarted) throws TransactionFailureException, CreateConstraintFailureException, ConstraintValidationException {
    if (txState != null) {
        RecordChangeSet recordChangeSet = new RecordChangeSet(loaders);
        TransactionRecordState recordState = new TransactionRecordState(neoStores, integrityValidator, recordChangeSet, lastTransactionIdWhenStarted, locks, relationshipCreator, relationshipDeleter, propertyCreator, propertyDeleter);
        // Visit transaction state and populate these record state objects
        TxStateVisitor txStateVisitor = new TransactionToRecordStateVisitor(recordState, schemaStateChangeCallback, schemaStorage, constraintSemantics, schemaIndexProviderMap);
        CountsRecordState countsRecordState = new CountsRecordState();
        txStateVisitor = constraintSemantics.decorateTxStateVisitor(storeLayer, txState, txStateVisitor);
        txStateVisitor = new TransactionCountingStateVisitor(txStateVisitor, storeLayer, storageStatement, txState, countsRecordState);
        try (TxStateVisitor visitor = txStateVisitor) {
            txState.accept(txStateVisitor);
        }
        // Convert record state into commands
        recordState.extractCommands(commands);
        countsRecordState.extractCommands(commands);
    }
}