Example #1
0
  /**
   * Constructor, using the ObjectProvider of the "owner" and the field name.
   *
   * @param op The owner ObjectProvider
   * @param mmd Metadata for the member
   */
  public Map(ObjectProvider op, AbstractMemberMetaData mmd) {
    super(op, mmd);

    // Set up our "delegate"
    this.delegate = new java.util.HashMap();

    ExecutionContext ec = ownerOP.getExecutionContext();
    allowNulls = SCOUtils.allowNullsInContainer(allowNulls, mmd);
    useCache = SCOUtils.useContainerCache(ownerOP, mmd);

    if (!SCOUtils.mapHasSerialisedKeysAndValues(mmd)
        && mmd.getPersistenceModifier() == FieldPersistenceModifier.PERSISTENT) {
      ClassLoaderResolver clr = ec.getClassLoaderResolver();
      this.backingStore =
          (MapStore)
              ((BackedSCOStoreManager) ownerOP.getStoreManager())
                  .getBackingStoreForField(clr, mmd, java.util.Map.class);
    }

    if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
      NucleusLogger.PERSISTENCE.debug(
          SCOUtils.getContainerInfoMessage(
              ownerOP,
              ownerMmd.getName(),
              this,
              useCache,
              allowNulls,
              SCOUtils.useCachedLazyLoading(ownerOP, ownerMmd)));
    }
  }
Example #2
0
  /**
   * Method to initialise the SCO from an existing value.
   *
   * @param m The object to set from
   * @param forInsert Whether the object needs inserting in the datastore with this value
   * @param forUpdate Whether to update the datastore with this value
   */
  public synchronized void initialise(java.util.Map m, boolean forInsert, boolean forUpdate) {
    if (m != null) {
      // Check for the case of serialised maps, and assign ObjectProviders to any PC keys/values
      // without
      if (SCOUtils.mapHasSerialisedKeysAndValues(ownerMmd)
          && (ownerMmd.getMap().keyIsPersistent() || ownerMmd.getMap().valueIsPersistent())) {
        ExecutionContext ec = ownerOP.getExecutionContext();
        Iterator iter = m.entrySet().iterator();
        while (iter.hasNext()) {
          Map.Entry entry = (Map.Entry) iter.next();
          Object key = entry.getKey();
          Object value = entry.getValue();
          if (ownerMmd.getMap().keyIsPersistent()) {
            ObjectProvider objSM = ec.findObjectProvider(key);
            if (objSM == null) {
              objSM =
                  ec.getNucleusContext()
                      .getObjectProviderFactory()
                      .newForEmbedded(ec, key, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
            }
          }
          if (ownerMmd.getMap().valueIsPersistent()) {
            ObjectProvider objSM = ec.findObjectProvider(value);
            if (objSM == null) {
              objSM =
                  ec.getNucleusContext()
                      .getObjectProviderFactory()
                      .newForEmbedded(ec, value, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
            }
          }
        }
      }

      if (backingStore != null && useCache && !isCacheLoaded) {
        // Mark as loaded
        isCacheLoaded = true;
      }

      if (forInsert) {
        if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
          NucleusLogger.PERSISTENCE.debug(
              Localiser.msg(
                  "023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
        }

        makeDirty();
        if (useCache) {
          // Make sure we have all values loaded (e.g if in optimistic tx and we put new entry)
          loadFromStore();
        }
        if (backingStore != null) {
          if (SCOUtils.useQueuedUpdate(ownerOP)) {
            Iterator iter = m.entrySet().iterator();
            while (iter.hasNext()) {
              Map.Entry entry = (Map.Entry) iter.next();
              ownerOP
                  .getExecutionContext()
                  .addOperationToQueue(
                      new MapPutOperation(ownerOP, backingStore, entry.getKey(), entry.getValue()));
            }
          } else {
            backingStore.putAll(ownerOP, m);
          }
        }
        delegate.putAll(m);
      } else if (forUpdate) {
        if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
          NucleusLogger.PERSISTENCE.debug(
              Localiser.msg(
                  "023008", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
        }

        // TODO This is clear+putAll. Improve it to work out what is changed
        delegate.clear();
        if (backingStore != null) {
          if (SCOUtils.useQueuedUpdate(ownerOP)) {
            // If not yet flushed to store then no need to add to queue (since will be handled via
            // insert)
            if (ownerOP.isFlushedToDatastore() || !ownerOP.getLifecycleState().isNew()) {
              ownerOP
                  .getExecutionContext()
                  .addOperationToQueue(new MapClearOperation(ownerOP, backingStore));
            }
          } else {
            backingStore.clear(ownerOP);
          }
        }
        if (useCache) {
          // Make sure we have all values loaded (e.g if in optimistic tx and we put new entry)
          loadFromStore();
        }

        if (backingStore != null) {
          if (SCOUtils.useQueuedUpdate(ownerOP)) {
            // If not yet flushed to store then no need to add to queue (since will be handled via
            // insert)
            if (ownerOP.isFlushedToDatastore() || !ownerOP.getLifecycleState().isNew()) {
              Iterator iter = m.entrySet().iterator();
              while (iter.hasNext()) {
                Map.Entry entry = (Map.Entry) iter.next();
                ownerOP
                    .getExecutionContext()
                    .addOperationToQueue(
                        new MapPutOperation(
                            ownerOP, backingStore, entry.getKey(), entry.getValue()));
              }
            }
          } else {
            backingStore.putAll(ownerOP, m);
          }
        }
        delegate.putAll(m);
        makeDirty();
      } else {
        if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
          NucleusLogger.PERSISTENCE.debug(
              Localiser.msg(
                  "023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
        }
        delegate.clear();
        delegate.putAll(m);
      }
    }
  }