Example usage for org.springframework.transaction TransactionDefinition ISOLATION

Introduction

In this page you can find the example usage for org.springframework.transaction TransactionDefinition ISOLATION_DEFAULT.

Prototype

int ISOLATION_DEFAULT

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Document

Use the default isolation level of the underlying datastore.

Usage

From source file:org.broadleafcommerce.common.util.TransactionUtils.java

public static TransactionStatus createTransaction(int propagationBehavior,
        PlatformTransactionManager transactionManager, boolean isReadOnly) {
    return createTransaction(propagationBehavior, TransactionDefinition.ISOLATION_DEFAULT, transactionManager,
            isReadOnly);//from   w ww .  j av  a2 s  . com
}

From source file:org.springframework.jdbc.datasource.DataSourceUtils.java

/**
 * Prepare the given Connection with the given transaction semantics.
 * @param con the Connection to prepare//from  w  w w . jav  a2s.co  m
 * @param definition the transaction definition to apply
 * @return the previous isolation level, if any
 * @throws SQLException if thrown by JDBC methods
 * @see #resetConnectionAfterTransaction
 */
@Nullable
public static Integer prepareConnectionForTransaction(Connection con,
        @Nullable TransactionDefinition definition) throws SQLException {

    Assert.notNull(con, "No Connection specified");

    // Set read-only flag.
    if (definition != null && definition.isReadOnly()) {
        try {
            if (logger.isDebugEnabled()) {
                logger.debug("Setting JDBC Connection [" + con + "] read-only");
            }
            con.setReadOnly(true);
        } catch (SQLException | RuntimeException ex) {
            Throwable exToCheck = ex;
            while (exToCheck != null) {
                if (exToCheck.getClass().getSimpleName().contains("Timeout")) {
                    // Assume it's a connection timeout that would otherwise get lost: e.g. from JDBC 4.0
                    throw ex;
                }
                exToCheck = exToCheck.getCause();
            }
            // "read-only not supported" SQLException -> ignore, it's just a hint anyway
            logger.debug("Could not set JDBC Connection read-only", ex);
        }
    }

    // Apply specific isolation level, if any.
    Integer previousIsolationLevel = null;
    if (definition != null && definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
        if (logger.isDebugEnabled()) {
            logger.debug("Changing isolation level of JDBC Connection [" + con + "] to "
                    + definition.getIsolationLevel());
        }
        int currentIsolation = con.getTransactionIsolation();
        if (currentIsolation != definition.getIsolationLevel()) {
            previousIsolationLevel = currentIsolation;
            con.setTransactionIsolation(definition.getIsolationLevel());
        }
    }

    return previousIsolationLevel;
}

From source file:org.springframework.orm.jdo.DefaultJdoDialect.java

/**
 * This implementation invokes the standard JDO <code>Transaction.begin</code>
 * method. Throws an InvalidIsolationLevelException if a non-default isolation
 * level is set./* w w  w .j  a va 2  s .  co  m*/
 * @see javax.jdo.Transaction#begin
 * @see org.springframework.transaction.InvalidIsolationLevelException
 */
public Object beginTransaction(Transaction transaction, TransactionDefinition definition)
        throws JDOException, SQLException, TransactionException {

    if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
        throw new InvalidIsolationLevelException("Standard JDO does not support custom isolation levels: "
                + "use a special JdoDialect implementation for your JDO provider");
    }
    transaction.begin();
    return null;
}

From source file:org.springframework.orm.jpa.vendor.HibernateJpaDialect.java

@Override
public Object beginTransaction(EntityManager entityManager, TransactionDefinition definition)
        throws PersistenceException, SQLException, TransactionException {

    Session session = getSession(entityManager);

    if (definition.getTimeout() != TransactionDefinition.TIMEOUT_DEFAULT) {
        session.getTransaction().setTimeout(definition.getTimeout());
    }/*from   w ww . j a  v  a2  s. c  o m*/

    boolean isolationLevelNeeded = (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT);
    Integer previousIsolationLevel = null;
    Connection preparedCon = null;

    if (isolationLevelNeeded || definition.isReadOnly()) {
        if (this.prepareConnection) {
            preparedCon = HibernateConnectionHandle.doGetConnection(session);
            previousIsolationLevel = DataSourceUtils.prepareConnectionForTransaction(preparedCon, definition);
        } else if (isolationLevelNeeded) {
            throw new InvalidIsolationLevelException(getClass().getSimpleName()
                    + " does not support custom isolation levels since the 'prepareConnection' flag is off.");
        }
    }

    // Standard JPA transaction begin call for full JPA context setup...
    entityManager.getTransaction().begin();

    // Adapt flush mode and store previous isolation level, if any.
    FlushMode previousFlushMode = prepareFlushMode(session, definition.isReadOnly());
    return new SessionTransactionData(session, previousFlushMode, preparedCon, previousIsolationLevel);
}

From source file:org.springframework.orm.jpa.vendor.OpenJpaDialect.java

@Override
public Object beginTransaction(EntityManager entityManager, TransactionDefinition definition)
        throws PersistenceException, SQLException, TransactionException {

    OpenJPAEntityManager openJpaEntityManager = getOpenJPAEntityManager(entityManager);

    if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
        // Pass custom isolation level on to OpenJPA's JDBCFetchPlan configuration
        FetchPlan fetchPlan = openJpaEntityManager.getFetchPlan();
        if (fetchPlan instanceof JDBCFetchPlan) {
            IsolationLevel isolation = IsolationLevel.fromConnectionConstant(definition.getIsolationLevel());
            ((JDBCFetchPlan) fetchPlan).setIsolation(isolation);
        }/*from w ww.ja v a  2  s.c  o m*/
    }

    entityManager.getTransaction().begin();

    if (!definition.isReadOnly()) {
        // Like with EclipseLink, make sure to start the logic transaction early so that other
        // participants using the connection (such as JdbcTemplate) run in a transaction.
        openJpaEntityManager.beginStore();
    }

    // Custom implementation for OpenJPA savepoint handling
    return new OpenJpaTransactionData(openJpaEntityManager);
}

From source file:org.springframework.transaction.reactive.AbstractReactiveTransactionManager.java

/**
 * This implementation handles propagation behavior. Delegates to
 * {@code doGetTransaction}, {@code isExistingTransaction}
 * and {@code doBegin}.//from   w  w  w  .j av a 2 s .  c  o  m
 * @see #doGetTransaction
 * @see #isExistingTransaction
 * @see #doBegin
 */
@Override
public final Mono<ReactiveTransaction> getReactiveTransaction(@Nullable TransactionDefinition definition)
        throws TransactionException {

    // Use defaults if no transaction definition given.
    TransactionDefinition def = (definition != null ? definition : TransactionDefinition.withDefaults());

    return TransactionSynchronizationManager.currentTransaction().flatMap(synchronizationManager -> {

        Object transaction = doGetTransaction(synchronizationManager);

        // Cache debug flag to avoid repeated checks.
        boolean debugEnabled = logger.isDebugEnabled();

        if (isExistingTransaction(transaction)) {
            // Existing transaction found -> check propagation behavior to find out how to behave.
            return handleExistingTransaction(synchronizationManager, def, transaction, debugEnabled);
        }

        // Check definition settings for new transaction.
        if (def.getTimeout() < TransactionDefinition.TIMEOUT_DEFAULT) {
            return Mono.error(new InvalidTimeoutException("Invalid transaction timeout", def.getTimeout()));
        }

        // No existing transaction found -> check propagation behavior to find out how to proceed.
        if (def.getPropagationBehavior() == TransactionDefinition.PROPAGATION_MANDATORY) {
            return Mono.error(new IllegalTransactionStateException(
                    "No existing transaction found for transaction marked with propagation 'mandatory'"));
        } else if (def.getPropagationBehavior() == TransactionDefinition.PROPAGATION_REQUIRED
                || def.getPropagationBehavior() == TransactionDefinition.PROPAGATION_REQUIRES_NEW
                || def.getPropagationBehavior() == TransactionDefinition.PROPAGATION_NESTED) {

            return TransactionContextManager.currentContext().map(TransactionSynchronizationManager::new)
                    .flatMap(nestedSynchronizationManager -> suspend(nestedSynchronizationManager, null)
                            .map(Optional::of).defaultIfEmpty(Optional.empty()).flatMap(suspendedResources -> {
                                if (debugEnabled) {
                                    logger.debug("Creating new transaction with name [" + def.getName() + "]: "
                                            + def);
                                }
                                return Mono.defer(() -> {
                                    GenericReactiveTransaction status = newReactiveTransaction(
                                            nestedSynchronizationManager, def, transaction, true, debugEnabled,
                                            suspendedResources.orElse(null));
                                    return doBegin(nestedSynchronizationManager, transaction, def)
                                            .doOnSuccess(ignore -> prepareSynchronization(
                                                    nestedSynchronizationManager, status, def))
                                            .thenReturn(status);
                                }).onErrorResume(ErrorPredicates.RUNTIME_OR_ERROR,
                                        ex -> resume(nestedSynchronizationManager, null,
                                                suspendedResources.orElse(null)).then(Mono.error(ex)));
                            }));
        } else {
            // Create "empty" transaction: no actual transaction, but potentially synchronization.
            if (def.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT && logger.isWarnEnabled()) {
                logger.warn("Custom isolation level specified but no actual transaction initiated; "
                        + "isolation level will effectively be ignored: " + def);
            }
            return Mono.just(
                    prepareReactiveTransaction(synchronizationManager, def, null, true, debugEnabled, null));
        }
    });
}

From source file:org.springframework.transaction.reactive.AbstractReactiveTransactionManager.java

/**
 * Initialize transaction synchronization as appropriate.
 */// w ww  .ja v a2 s .  co  m
private void prepareSynchronization(TransactionSynchronizationManager synchronizationManager,
        GenericReactiveTransaction status, TransactionDefinition definition) {

    if (status.isNewSynchronization()) {
        synchronizationManager.setActualTransactionActive(status.hasTransaction());
        synchronizationManager.setCurrentTransactionIsolationLevel(
                definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT
                        ? definition.getIsolationLevel()
                        : null);
        synchronizationManager.setCurrentTransactionReadOnly(definition.isReadOnly());
        synchronizationManager.setCurrentTransactionName(definition.getName());
        synchronizationManager.initSynchronization();
    }
}

From source file:org.springframework.transaction.support.AbstractPlatformTransactionManager.java

/**
 * This implementation handles propagation behavior. Delegates to
 * {@code doGetTransaction}, {@code isExistingTransaction}
 * and {@code doBegin}./*from  w w w.  j  a  va 2s .c  o  m*/
 * @see #doGetTransaction
 * @see #isExistingTransaction
 * @see #doBegin
 */
@Override
public final TransactionStatus getTransaction(@Nullable TransactionDefinition definition)
        throws TransactionException {
    Object transaction = doGetTransaction();

    // Cache debug flag to avoid repeated checks.
    boolean debugEnabled = logger.isDebugEnabled();

    if (definition == null) {
        // Use defaults if no transaction definition given.
        definition = new DefaultTransactionDefinition();
    }

    if (isExistingTransaction(transaction)) {
        // Existing transaction found -> check propagation behavior to find out how to behave.
        return handleExistingTransaction(definition, transaction, debugEnabled);
    }

    // Check definition settings for new transaction.
    if (definition.getTimeout() < TransactionDefinition.TIMEOUT_DEFAULT) {
        throw new InvalidTimeoutException("Invalid transaction timeout", definition.getTimeout());
    }

    // No existing transaction found -> check propagation behavior to find out how to proceed.
    if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_MANDATORY) {
        throw new IllegalTransactionStateException(
                "No existing transaction found for transaction marked with propagation 'mandatory'");
    } else if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_REQUIRED
            || definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_REQUIRES_NEW
            || definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_NESTED) {
        SuspendedResourcesHolder suspendedResources = suspend(null);
        if (debugEnabled) {
            logger.debug("Creating new transaction with name [" + definition.getName() + "]: " + definition);
        }
        try {
            boolean newSynchronization = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
            DefaultTransactionStatus status = newTransactionStatus(definition, transaction, true,
                    newSynchronization, debugEnabled, suspendedResources);
            doBegin(transaction, definition);
            prepareSynchronization(status, definition);
            return status;
        } catch (RuntimeException | Error ex) {
            resume(null, suspendedResources);
            throw ex;
        }
    } else {
        // Create "empty" transaction: no actual transaction, but potentially synchronization.
        if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT
                && logger.isWarnEnabled()) {
            logger.warn("Custom isolation level specified but no actual transaction initiated; "
                    + "isolation level will effectively be ignored: " + definition);
        }
        boolean newSynchronization = (getTransactionSynchronization() == SYNCHRONIZATION_ALWAYS);
        return prepareTransactionStatus(definition, null, true, newSynchronization, debugEnabled, null);
    }
}

From source file:org.springframework.transaction.support.AbstractPlatformTransactionManager.java

/**
 * Create a TransactionStatus for an existing transaction.
 *///from  w  w  w.  ja va 2 s .  c o m
private TransactionStatus handleExistingTransaction(TransactionDefinition definition, Object transaction,
        boolean debugEnabled) throws TransactionException {

    if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_NEVER) {
        throw new IllegalTransactionStateException(
                "Existing transaction found for transaction marked with propagation 'never'");
    }

    if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_NOT_SUPPORTED) {
        if (debugEnabled) {
            logger.debug("Suspending current transaction");
        }
        Object suspendedResources = suspend(transaction);
        boolean newSynchronization = (getTransactionSynchronization() == SYNCHRONIZATION_ALWAYS);
        return prepareTransactionStatus(definition, null, false, newSynchronization, debugEnabled,
                suspendedResources);
    }

    if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_REQUIRES_NEW) {
        if (debugEnabled) {
            logger.debug("Suspending current transaction, creating new transaction with name ["
                    + definition.getName() + "]");
        }
        SuspendedResourcesHolder suspendedResources = suspend(transaction);
        try {
            boolean newSynchronization = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
            DefaultTransactionStatus status = newTransactionStatus(definition, transaction, true,
                    newSynchronization, debugEnabled, suspendedResources);
            doBegin(transaction, definition);
            prepareSynchronization(status, definition);
            return status;
        } catch (RuntimeException | Error beginEx) {
            resumeAfterBeginException(transaction, suspendedResources, beginEx);
            throw beginEx;
        }
    }

    if (definition.getPropagationBehavior() == TransactionDefinition.PROPAGATION_NESTED) {
        if (!isNestedTransactionAllowed()) {
            throw new NestedTransactionNotSupportedException(
                    "Transaction manager does not allow nested transactions by default - "
                            + "specify 'nestedTransactionAllowed' property with value 'true'");
        }
        if (debugEnabled) {
            logger.debug("Creating nested transaction with name [" + definition.getName() + "]");
        }
        if (useSavepointForNestedTransaction()) {
            // Create savepoint within existing Spring-managed transaction,
            // through the SavepointManager API implemented by TransactionStatus.
            // Usually uses JDBC 3.0 savepoints. Never activates Spring synchronization.
            DefaultTransactionStatus status = prepareTransactionStatus(definition, transaction, false, false,
                    debugEnabled, null);
            status.createAndHoldSavepoint();
            return status;
        } else {
            // Nested transaction through nested begin and commit/rollback calls.
            // Usually only for JTA: Spring synchronization might get activated here
            // in case of a pre-existing JTA transaction.
            boolean newSynchronization = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
            DefaultTransactionStatus status = newTransactionStatus(definition, transaction, true,
                    newSynchronization, debugEnabled, null);
            doBegin(transaction, definition);
            prepareSynchronization(status, definition);
            return status;
        }
    }

    // Assumably PROPAGATION_SUPPORTS or PROPAGATION_REQUIRED.
    if (debugEnabled) {
        logger.debug("Participating in existing transaction");
    }
    if (isValidateExistingTransaction()) {
        if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
            Integer currentIsolationLevel = TransactionSynchronizationManager
                    .getCurrentTransactionIsolationLevel();
            if (currentIsolationLevel == null || currentIsolationLevel != definition.getIsolationLevel()) {
                Constants isoConstants = DefaultTransactionDefinition.constants;
                throw new IllegalTransactionStateException("Participating transaction with definition ["
                        + definition
                        + "] specifies isolation level which is incompatible with existing transaction: "
                        + (currentIsolationLevel != null
                                ? isoConstants.toCode(currentIsolationLevel,
                                        DefaultTransactionDefinition.PREFIX_ISOLATION)
                                : "(unknown)"));
            }
        }
        if (!definition.isReadOnly()) {
            if (TransactionSynchronizationManager.isCurrentTransactionReadOnly()) {
                throw new IllegalTransactionStateException("Participating transaction with definition ["
                        + definition + "] is not marked as read-only but existing transaction is");
            }
        }
    }
    boolean newSynchronization = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
    return prepareTransactionStatus(definition, transaction, false, newSynchronization, debugEnabled, null);
}

From source file:org.springframework.transaction.support.AbstractPlatformTransactionManager.java

/**
 * Initialize transaction synchronization as appropriate.
 *//*from   ww  w.j  a  va 2s  .  c om*/
protected void prepareSynchronization(DefaultTransactionStatus status, TransactionDefinition definition) {
    if (status.isNewSynchronization()) {
        TransactionSynchronizationManager.setActualTransactionActive(status.hasTransaction());
        TransactionSynchronizationManager.setCurrentTransactionIsolationLevel(
                definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT
                        ? definition.getIsolationLevel()
                        : null);
        TransactionSynchronizationManager.setCurrentTransactionReadOnly(definition.isReadOnly());
        TransactionSynchronizationManager.setCurrentTransactionName(definition.getName());
        TransactionSynchronizationManager.initSynchronization();
    }
}

Example usage for org.springframework.transaction TransactionDefinition ISOLATION_DEFAULT

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