Examples of com.google.gwt.requestfactory.shared.messages.OperationMessage

Package com.google.gwt.requestfactory.shared.messages

Examples of com.google.gwt.requestfactory.shared.messages.OperationMessage

com.google.gwt.requestfactory.shared.messages.OperationMessage
Represents an operation to be carried out on a single entity on the server.

    List<AutoBean<? extends BaseProxy>> beans = state.getBeansForPayload(operations);
    assert operations.size() == beans.size();


    Iterator<OperationMessage> itOp = operations.iterator();
    for (AutoBean<? extends BaseProxy> bean : beans) {
      OperationMessage operation = itOp.next();
      // Save the client's version information to reduce payload size later
      bean.setTag(Constants.VERSION_PROPERTY_B64, operation.getVersion());


      // Load the domain object with properties, if it exists
      final Object domain = bean.getTag(Constants.DOMAIN_OBJECT);
      if (domain != null) {
        // Apply any property updates
        final Map<String, Splittable> flatValueMap = operation.getPropertyMap();
        if (flatValueMap != null) {
          bean.accept(new AutoBeanVisitor() {
            @Override
            public boolean visitReferenceProperty(String propertyName,
                AutoBean<?> value, PropertyContext ctx) {

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   */
  public DefaultProxyStore() {
    messageBean = MessageFactoryHolder.FACTORY.operation();
    map = new HashMap<String, Splittable>();


    OperationMessage message = messageBean.as();
    message.setPropertyMap(map);
    message.setVersion(EXPECTED_VERSION);
  }

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   */
  public DefaultProxyStore(String payload) throws IllegalArgumentException {
    messageBean = AutoBeanCodex.decode(MessageFactoryHolder.FACTORY,
        OperationMessage.class, payload);


    OperationMessage message = messageBean.as();
    if (!EXPECTED_VERSION.equals(message.getVersion())) {
      throw new IllegalArgumentException(
          "Unexpected version string in payload " + message.getVersion());
    }
    map = message.getPropertyMap();
  }

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  public <T extends BaseProxy> T deserialize(Class<T> proxyType, String key) {
    // Fast exit to prevent getOperation from throwing an exception
    if (store.get(key) == null) {
      return null;
    }
    OperationMessage op = getOperation(proxyType, key);
    @SuppressWarnings("unchecked")
    SimpleProxyId<T> id = (SimpleProxyId<T>) getId(op);
    return doDeserialize(id);
  }

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    if (restored.add(id)) {
      /*
       * If we haven't seen the id before, use the data in the OperationMessage
       * to repopulate the properties of the canonical bean for this id.
       */
      OperationMessage op = getOperation(id.getProxyClass(),
          getRequestFactory().getHistoryToken(id));
      this.processReturnOperation(id, op);
      toReturn.setTag(Constants.STABLE_ID, super.getId(op));
    }
    return toReturn;

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    Splittable data = store.get(key);
    if (data == null) {
      throw new NoDataException();
    }


    OperationMessage op = AutoBeanCodex.decode(MessageFactoryHolder.FACTORY,
        OperationMessage.class, data).as();
    return op;
  }

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  AutoBean<OperationMessage> makeOperationMessage(
      SimpleProxyId<BaseProxy> stableId, AutoBean<?> proxyBean, boolean useDelta) {


    // The OperationMessages describes operations on exactly one entity
    AutoBean<OperationMessage> toReturn = MessageFactoryHolder.FACTORY.operation();
    OperationMessage operation = toReturn.as();
    operation.setTypeToken(requestFactory.getTypeToken(stableId.getProxyClass()));


    // Find the object to compare against
    AutoBean<?> parent;
    if (stableId.isEphemeral()) {
      // Newly-created object, use a blank object to compare against
      parent = createProxy(stableId.getProxyClass(), stableId);


      // Newly-created objects go into the persist operation bucket
      operation.setOperation(WriteOperation.PERSIST);
      // The ephemeral id is passed to the server
      operation.setClientId(stableId.getClientId());
      operation.setStrength(Strength.EPHEMERAL);
    } else if (stableId.isSynthetic()) {
      // Newly-created object, use a blank object to compare against
      parent = createProxy(stableId.getProxyClass(), stableId);


      // Newly-created objects go into the persist operation bucket
      operation.setOperation(WriteOperation.PERSIST);
      // The ephemeral id is passed to the server
      operation.setSyntheticId(stableId.getSyntheticId());
      operation.setStrength(Strength.SYNTHETIC);
    } else {
      parent = proxyBean.getTag(Constants.PARENT_OBJECT);
      // Requests involving existing objects use the persisted id
      operation.setServerId(stableId.getServerId());
      operation.setOperation(WriteOperation.UPDATE);
    }
    assert !useDelta || parent != null;


    // Send our version number to the server to cut down on future payloads
    String version = proxyBean.getTag(Constants.VERSION_PROPERTY_B64);
    if (version != null) {
      operation.setVersion(version);
    }


    Map<String, Object> diff = Collections.emptyMap();
    if (isEntityType(stableId.getProxyClass())) {
      // Compute what's changed on the client
      diff = useDelta ? AutoBeanUtils.diff(parent, proxyBean)
          : AutoBeanUtils.getAllProperties(proxyBean);
    } else if (isValueType(stableId.getProxyClass())) {
      // Send everything
      diff = AutoBeanUtils.getAllProperties(proxyBean);
    }


    if (!diff.isEmpty()) {
      Map<String, Splittable> propertyMap = new HashMap<String, Splittable>();
      for (Map.Entry<String, Object> entry : diff.entrySet()) {
        propertyMap.put(entry.getKey(),
            EntityCodex.encode(this, entry.getValue()));
      }
      operation.setPropertyMap(propertyMap);
    }
    return toReturn;
  }

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   * Compute deltas for each entity seen by the context.
   */
  private List<OperationMessage> makePayloadOperations() {
    List<OperationMessage> operations = new ArrayList<OperationMessage>();
    for (AutoBean<? extends BaseProxy> currentView : editedProxies.values()) {
      OperationMessage operation = makeOperationMessage(
          BaseProxyCategory.stableId(currentView), currentView, true).as();
      operations.add(operation);
    }
    return operations;
  }

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Related Classes of com.google.gwt.requestfactory.shared.messages.OperationMessage

com.google.gwt.requestfactory.server.SimpleRequestProcessor

com.google.gwt.requestfactory.shared.DefaultProxyStore

com.google.gwt.requestfactory.shared.impl.AbstractRequestContext

com.google.gwt.requestfactory.shared.impl.ProxySerializerImpl

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