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Thread: Deserializing objects

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    Default Deserializing objects

    I have a problem about an objects deserialization: I serialized some objects different from one another but extend a X class. These objects are serialized in a random way and i don't know the correct order when they're about to be deserialized and I can't find a way to make a specific casting to their specific class. I thought to rescue each object and custing it to the X class, but then how do i make a down-casting? Using the reflection could be the solution?


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    Default Re: Deserializing objects

    For debugging you could use the getClass() method.
    Did you try using instanceof to test the object that was read?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Deserializing objects

    I thought to use instanceof but there'd be 20 deserialized objects or more, so it wouldn't be "elegant" to make so many if-cases. Using the getClass() method how do I proceed? Class<?> c = objectDeserialized.getClass() and then c.newInstance()?

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    Default Re: Deserializing objects

    Using the getClass() method how do I proceed?
    Read the serialized object into an instance of the Object class and call getClass() on that object.
    Something like:
    Object obj = readObject()
    S.o.p(obj.getClass())

    so many if-cases.
    You will need code to handle each type of object that can be read.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Deserializing objects

    Quote Originally Posted by Norm View Post
    Read the serialized object into an instance of the Object class and call getClass() on that object.
    Something like:
    Object obj = readObject()
    S.o.p(obj.getClass())
    Ok, but if I had to create that specific object as it was before the serialization?

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    Default Re: Deserializing objects

    You need a definition for the class that the jvm can use to build the object from the serialized object.
    If you don't understand my answer, don't ignore it, ask a question.

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