Examples of org.springframework.binding.message.StateManageableMessageContext

Package org.springframework.binding.message

Examples of org.springframework.binding.message.StateManageableMessageContext

org.springframework.binding.message.StateManageableMessageContext
A message context whose internal state can be managed by an external care-taker. State management employs the GOF Memento pattern. This context can produce a serializable memento representing its internal state at any time. A care-taker can then use that memento at a later time to restore any context instance to a previous state. @author Keith Donald

    State state = session.getFlow().getStateInstance(stateId);
    session.setCurrentState(state);
  }


  private MessageContext createMessageContext(MessageSource messageSource) {
    StateManageableMessageContext messageContext = new DefaultMessageContext(messageSource);
    Serializable messagesMemento = (Serializable) getFlashScope().extract("messagesMemento");
    if (messagesMemento != null) {
      messageContext.restoreMessages(messagesMemento);
    }
    return messageContext;
  }

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    }
    return messageContext;
  }


  private void saveMessages(RequestContext context) {
    StateManageableMessageContext messageContext = (StateManageableMessageContext) context.getMessageContext();
    Serializable messagesMemento = messageContext.createMessagesMemento();
    getFlashScope().put("messagesMemento", messagesMemento);
  }

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    listeners.fireSessionCreating(context, flow);
    FlowSession session = activateSession(flow);
    if (input == null) {
      input = new LocalAttributeMap();
    }
    StateManageableMessageContext messageContext = (StateManageableMessageContext) context.getMessageContext();
    messageContext.setMessageSource(flow.getApplicationContext());
    listeners.fireSessionStarting(context, session, input);
    flow.start(context, input);
    listeners.fireSessionStarted(context, session);
  }

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      input = new LocalAttributeMap<Object>();
    }
    if (hasEmbeddedModeAttribute(input)) {
      session.setEmbeddedMode();
    }
    StateManageableMessageContext messageContext = (StateManageableMessageContext) context.getMessageContext();
    messageContext.setMessageSource(flow.getApplicationContext());
    listeners.fireSessionStarting(context, session, input);
    flow.start(context, input);
    listeners.fireSessionStarted(context, session);
  }

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  }


  // internal helpers


  private MessageContext createMessageContext(MessageSource messageSource) {
    StateManageableMessageContext messageContext = new DefaultMessageContext(messageSource);
    Serializable messagesMemento = (Serializable) getFlashScope().extract("messagesMemento");
    if (messagesMemento != null) {
      messageContext.restoreMessages(messagesMemento);
    }
    return messageContext;
  }

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    }
    return flowSessions.getLast();
  }


  private void saveFlashMessages(RequestContext context) {
    StateManageableMessageContext messageContext = (StateManageableMessageContext) context.getMessageContext();
    Serializable messagesMemento = messageContext.createMessagesMemento();
    getFlashScope().put("messagesMemento", messagesMemento);
  }

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org.springframework.webflow.engine.impl.FlowExecutionImpl

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