org.neo4j.server.rest.transactional

Class TransactionFacade

java.lang.Object

org.neo4j.server.rest.transactional.TransactionFacade

public class TransactionFacade
extends Object

Transactional actions contains the business logic for executing statements against Neo4j across long-running transactions.

The idiom for the public methods here is:

response.begin() try { // Do internal calls, saving errors into a common error list } catch ( Neo4jError e ) { errors.add(e); } finally { response.finish(errors) }

This is done to ensure we stick to the contract of the response handler, which is important, because if we skimp on it, clients may be left waiting for results that never arrive.

Constructor Summary

Constructors

Constructor and Description
TransactionFacade(KernelAPI kernel, ExecutionEngine engine, TransactionRegistry registry, URI baseUri, org.neo4j.kernel.impl.util.StringLogger log)

Method Summary

Methods

Modifier and Type	Method and Description
StatementDeserializer	deserializer(InputStream input)
TransactionHandle	findTransactionHandle(long txId)
TransactionHandle	newTransactionHandle(TransactionUriScheme uriScheme)
ExecutionResultSerializer	serializer(OutputStream output)

Methods inherited from class java.lang.Object

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

Constructor Detail

TransactionFacade

public TransactionFacade(KernelAPI kernel,
                 ExecutionEngine engine,
                 TransactionRegistry registry,
                 URI baseUri,
                 org.neo4j.kernel.impl.util.StringLogger log)

Method Detail

newTransactionHandle

public TransactionHandle newTransactionHandle(TransactionUriScheme uriScheme)
                                       throws TransactionLifecycleException

Throws:

TransactionLifecycleException

findTransactionHandle

public TransactionHandle findTransactionHandle(long txId)
                                        throws TransactionLifecycleException

Throws:

TransactionLifecycleException

deserializer

public StatementDeserializer deserializer(InputStream input)

serializer

public ExecutionResultSerializer serializer(OutputStream output)