org.apache.jena.graph.impl

Class TransactionHandlerBase

java.lang.Object

org.apache.jena.graph.impl.TransactionHandlerBase

All Implemented Interfaces:

TransactionHandler

Direct Known Subclasses:

BaseInfGraph.InfTransactionHandler, SimpleTransactionHandler

public abstract class TransactionHandlerBase
extends Object
implements TransactionHandler

A base for transaction handlers; provide implementations of execute* operations using the fundamental begin-commit-abort. (This class predates java8 default methods.)

Constructor Summary

Constructors

Constructor and Description
TransactionHandlerBase()

Method Summary

Modifier and Type	Method and Description
<T> T	calculate(Supplier<T> action) Execute the supplier action within a transaction.
void	execute(Runnable action) Execute the runnable action within a transaction.
Object	executeInTransaction(Command c) Execute the command c within a transaction.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.graph.TransactionHandler

abort, begin, commit, transactionsSupported

Constructor Detail

TransactionHandlerBase

public TransactionHandlerBase()

Method Detail

executeInTransaction

public Object executeInTransaction(Command c)

Execute the command c within a transaction. If it completes normally, commit the transaction and return the result. Otherwise abort the transaction.

Specified by:

executeInTransaction in interface TransactionHandler

execute

public void execute(Runnable action)

Execute the runnable action within a transaction. If it completes normally, commit the transaction, otherwise abort the transaction.

Specified by:

execute in interface TransactionHandler

calculate

public <T> T calculate(Supplier<T> action)

Execute the supplier action within a transaction. If it completes normally, commit the transaction and return the result, otherwise abort the transaction.

Specified by:

calculate in interface TransactionHandler