Examples of org.datanucleus.PersistenceConfiguration

org.datanucleus.PersistenceConfiguration
Class providing configuration for persistence. Properties are defined in plugin.xml (aliases, default value, validators etc). Property values are stored in two maps.
- The first is the default value for the property (where a default is defined). The default comes from either the plugin defining it, or for the API being used (overrides any plugin default).
- The second is the user-provided value (where the user has provided one).
Components can then access these properties using any of the convenience accessors for boolean, Boolean, long, int, Object, String types. When accessing properties the user-provided value is taken first (if available), otherwise the default value is used (or null).

        TableName tableName = newInstance(TableName.class, new Class[] {String.class, String.class, Boolean.TYPE},
                "" /*namespace*/, entityClass.getSimpleName().toLowerCase(), false /*parseForSuffix*/);
        
        // Construct a virtual TableImpl just like how the ForceStoreSchemaHandler would
        // (see ForceStoreSchemaHandler.addVirtualTable)
        OMFContext omfContext = new OMFContext(new PersistenceConfiguration() { });
        MetaDataManager metaDataManager = new JPAMetaDataManager(omfContext);
        return new TableImpl(tableName,
                             metaDataManager.getMetaDataForClass(entityClass, omfContext.getClassLoaderResolver(null)));
    }

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     * If the supplied exception is a PersistenceException, also mark the current transaction for rollback.
     * @param re The exception
     */
    private Object throwException(RuntimeException re) {
        if (re instanceof PersistenceException) {
            PersistenceConfiguration conf = om.getOMFContext().getPersistenceConfiguration();
            boolean markForRollback = conf.getBooleanProperty("datanucleus.jpa.txnMarkForRollbackOnException");
            if (markForRollback) {
                // The JPA spec says that all PersistenceExceptions thrown should mark the transaction for 
                // rollback. Seems excessive to me. For example, you try to find an object with a particular id and it 
                // doesn't exist so you then have to rollback the txn and start again.
                getTransaction().setRollbackOnly();

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        LOGGER.info(LOCALISER.msg("Enhancer.ClassEnhancer", enhancerName, api));


        this.api = api;
        this.enhancerName = enhancerName;


        PersistenceConfiguration conf = new PersistenceConfiguration() {};
        if (props != null)
        {
            // This is actually wrong since we should apply them *after* any default props below
            conf.setOptions(props);
        }
        omfContext = new OMFContext(conf, OMFContext.CONTEXT_ENHANCE);
        Map map = omfContext.getApiAdapter().getDefaultFactoryProperties();
        conf.setOptions(map);
        omfContext.setApi(api);
        clr = omfContext.getClassLoaderResolver(null);
    }

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        clr = omfContext.getClassLoaderResolver(null);
    }


    public RuntimeEnhancer()
    {
        this(new PersistenceConfiguration() {});
    }

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     */
    protected AbstractStoreManager(String key, ClassLoaderResolver clr, OMFContext omfContext)
    {
        this.storeManagerKey = key;
        this.omfContext = omfContext;
        PersistenceConfiguration conf = omfContext.getPersistenceConfiguration();
        this.readOnlyDatastore = conf.getBooleanProperty("datanucleus.readOnlyDatastore");
        this.readOnlyDatastoreAction = conf.getStringProperty("datanucleus.readOnlyDatastoreAction");
        this.fixedDatastore = conf.getBooleanProperty("datanucleus.fixedDatastore");
        this.autoStartMechanism = conf.getStringProperty("datanucleus.autoStartMechanism");


        // Register this StoreManager with the OMFContext
        omfContext.setStoreManager(this);


        this.valueGenerationMgr = new ValueGenerationManager();

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     */
    protected void logConfiguration()
    {
        if (NucleusLogger.DATASTORE.isDebugEnabled())
        {
            PersistenceConfiguration conf = omfContext.getPersistenceConfiguration();


            NucleusLogger.DATASTORE.debug("======================= Datastore =========================");
            NucleusLogger.DATASTORE.debug("StoreManager : \"" + storeManagerKey + "\" (" + getClass().getName() + ")");
            if (autoStartMechanism != null)
            {
                String classNames = conf.getStringProperty("datanucleus.autoStartClassNames");
                NucleusLogger.DATASTORE.debug("AutoStart : mechanism=" + autoStartMechanism + 
                    ", mode=" + conf.getStringProperty("datanucleus.autoStartMechanismMode") +
                    ((classNames != null) ? (", classes=" + classNames) : ""));
            }
            String url = omfContext.getPersistenceConfiguration().getStringProperty("datanucleus.ConnectionURL");
            NucleusLogger.DATASTORE.debug(LOCALISER.msg("032020", storeManagerKey, url,
                (readOnlyDatastore ? "read-only" : "read-write"), (fixedDatastore ? ", fixed" : "")));

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     * is attempting to be updated.
     * @param sm StateManager for the object
     */
    public void assertReadOnlyForUpdateOfObject(StateManager sm)
    {
        PersistenceConfiguration conf = getOMFContext().getPersistenceConfiguration();
        if (conf.getBooleanProperty("datanucleus.readOnlyDatastore"))
        {
            if (conf.getStringProperty("datanucleus.readOnlyDatastoreAction").equalsIgnoreCase("EXCEPTION"))
            {
                throw new DatastoreReadOnlyException(LOCALISER.msg("032004",
                    StringUtils.toJVMIDString(sm.getObject())), sm.getObjectManager().getClassLoaderResolver());
            }
            else

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     */
    protected void setUp() throws Exception
    {
        ApiAdapter api = new JDOAdapter();
        ClassLoaderResolver clr = new JDOClassLoaderResolver();
        PluginManager pluginMgr = new PluginManager(new PersistenceConfiguration() {}, clr);
        pluginMgr.registerExtensionPoints();
        pluginMgr.registerExtensions();
        pluginMgr.resolveConstraints();
        typeMgr = new TypeManager(api, pluginMgr, clr);
    }

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        unitMetaData = EntityManagerFactoryImpl.unitMetaDataCache.get(unitName);
        if (unitMetaData == null)
        {
            // Find all "META-INF/persistence.xml" files in the current thread loader CLASSPATH and parse them
            // Create a temporary PMFContext so we have a parser
            OMFContext pmfCtxt = new OMFContext(new PersistenceConfiguration(){});
            pmfCtxt.setApi("JPA");
            MetaDataManager metadataMgr = pmfCtxt.getMetaDataManager();
            PersistenceFileMetaData[] files = metadataMgr.parsePersistenceFiles();
            if (files == null)
            {

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     * Changing the contents of the map does not change the configuration in effect.
     * @return properties
     */
    public Map<String, Object> getProperties()
    {
        PersistenceConfiguration conf = 
            ((ObjectManagerFactoryImpl)pmf).getOMFContext().getPersistenceConfiguration();
        return conf.getOptions();
    }

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