Examples of org.springframework.transaction.support.TransactionTemplate

Package org.springframework.transaction.support

Examples of org.springframework.transaction.support.TransactionTemplate

org.springframework.transaction.support.TransactionTemplate
Template class that simplifies programmatic transaction demarcation and transaction exception handling.
The central method is {@link #execute}, supporting transactional code that implements the {@link TransactionCallback} interface. This template handlesthe transaction lifecycle and possible exceptions such that neither the TransactionCallback implementation nor the calling code needs to explicitly handle transactions.
Typical usage: Allows for writing low-level data access objects that use resources such as JDBC DataSources but are not transaction-aware themselves. Instead, they can implicitly participate in transactions handled by higher-level application services utilizing this class, making calls to the low-level services via an inner-class callback object.
Can be used within a service implementation via direct instantiation with a transaction manager reference, or get prepared in an application context and passed to services as bean reference. Note: The transaction manager should always be configured as bean in the application context: in the first case given to the service directly, in the second case given to the prepared template.
Supports setting the propagation behavior and the isolation level by name, for convenient configuration in context definitions. @author Juergen Hoeller @since 17.03.2003 @see #execute @see #setTransactionManager @see org.springframework.transaction.PlatformTransactionManager

    }


    public TransactionTemplate getTransactionTemplate() {
        if (template == null) {
            ObjectHelper.notNull(transactionManager, "transactionManager");
            template = new TransactionTemplate(transactionManager);
            if (propagationBehaviorName != null) {
                template.setPropagationBehaviorName(propagationBehaviorName);
            }
        }
        return template;

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    public static JdbcMessageIdRepository jpaMessageIdRepository(DataSource dataSource, String processorName) {
        return new JdbcMessageIdRepository(dataSource, processorName);
    }


    private static TransactionTemplate createTransactionTemplate(DataSource dataSource) {
        TransactionTemplate transactionTemplate = new TransactionTemplate();
        transactionTemplate.setTransactionManager(new DataSourceTransactionManager(dataSource));
        transactionTemplate.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
        return transactionTemplate;
    }

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    }


    public final void setTransactionManager(PlatformTransactionManager transactionManager) {
        this.transactionManager = transactionManager;
        
        transactionTemplate = new TransactionTemplate(transactionManager);
        transactionTemplate.setPropagationBehavior(TransactionTemplate.PROPAGATION_REQUIRED);


        transactionTemplateReadOnly = new TransactionTemplate(transactionManager);
        transactionTemplateReadOnly.setPropagationBehavior(TransactionTemplate.PROPAGATION_REQUIRED);
        transactionTemplateReadOnly.setReadOnly(true);
    }

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    protected void cleanupRepository() {
        // must type cast with Spring 2.x
        jpaTemplate = (JpaTemplate) applicationContext.getBean("jpaTemplate");


        TransactionTemplate transactionTemplate = new TransactionTemplate();
        transactionTemplate.setTransactionManager(new JpaTransactionManager(jpaTemplate.getEntityManagerFactory()));
        transactionTemplate.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);


        transactionTemplate.execute(new TransactionCallback() {
            public Object doInTransaction(TransactionStatus arg0) {
                List list = jpaTemplate.find(SELECT_ALL_STRING);
                for (Object item : list) {
                    jpaTemplate.remove(item);
                }

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    ApplicationContext appContext = null;       
        try {
            appContext = new ClassPathXmlApplicationContext(defaultConfigPaths);
            final ApplicationContext fappContext = appContext;
            //BeanLocatorFactory.setApplicationContext(appContext);
             TransactionTemplate txTemplate = (TransactionTemplate) BeanLocatorFactory.getBean("transactionTemplate");


                 txTemplate.execute(new TransactionCallbackWithoutResult() {
                     public void doInTransactionWithoutResult(TransactionStatus status)
                     {
                         try {
                           
                           ObjectDAO objectDAO = (ObjectDAO)fappContext.getBean("objectDAO");

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  @Override
  public String intercept(ActionInvocation invoker) throws Exception {
    final ActionInvocation finalInvoker = invoker; 
    try
    {      
      TransactionTemplate txTemplate =(TransactionTemplate) BeanLocatorFactory.getBean("transactionTemplate");
      
      txTemplate.execute(new TransactionCallbackWithoutResult(){
        public void doInTransactionWithoutResult(TransactionStatus status) {
          try {
                        logger.debug("Begin transaction interceptor");
            finalInvoker.invoke();
                        logger.debug("End transaction interceptor");

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  @Override
  public String intercept(ActionInvocation invoker) throws Exception {
    final ActionInvocation finalInvoker = invoker; 
    try
    {      
      TransactionTemplate txTemplate =(TransactionTemplate) BeanLocatorFactory.getBean("transactionTemplate");
      
      txTemplate.execute(new TransactionCallbackWithoutResult(){
        public void doInTransactionWithoutResult(TransactionStatus status) {
          try {
                        //logger.debug("Begin transaction interceptor");
            finalInvoker.invoke();
                        //logger.debug("End transaction interceptor");

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        overdueEndpoint.setResultWaitTime(8000);
    }


    protected RouteBuilder createRouteBuilder() throws Exception {
        JpaTemplate jpaTemplate = getMandatoryBean(JpaTemplate.class, "jpaTemplate");
        TransactionTemplate transactionTemplate = getMandatoryBean(TransactionTemplate.class, "transactionTemplate");


        // START SNIPPET: example
        return new ProcessBuilder(jpaTemplate, transactionTemplate) {
            public void configure() throws Exception {

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        overdueEndpoint.assertIsSatisfied();
    }


    protected void sendAMessages() {
        TransactionTemplate transaction = getMandatoryBean(TransactionTemplate.class, "transactionTemplate");
        transaction.execute(new TransactionCallbackWithoutResult() {
            protected void doInTransactionWithoutResult(TransactionStatus status) {
                template.sendBody("direct:a", "<hello id='123'>A</hello>");
                template.sendBody("direct:a", "<hello id='124'>B</hello>");
                template.sendBody("direct:a", "<hello id='125'>C</hello>");
            }

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            }
        });
    }


    protected void sendBMessages() {
        TransactionTemplate transaction = getMandatoryBean(TransactionTemplate.class, "transactionTemplate");
        transaction.execute(new TransactionCallbackWithoutResult() {
            protected void doInTransactionWithoutResult(TransactionStatus status) {
                template.sendBody("direct:b", "<hello id='123'>A</hello>");
                template.sendBody("direct:b", "<hello id='125'>C</hello>");
            }
        });

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