Protobuf, XML, and JSON are all used fordata serialization. This means they transform structured data (like objects or records) into a format that can be stored or transmitted (e.g., over a network). They arelanguage-independent, meaning you can use them with different programming languages....
Adding java.io.Serializable– This is equivalent to adding types. There will be no values in the stream for this class so its fields will be initialized to default values. The support for subclassing non-serializable classes requires that the class’s super type have a no-arg constructor and ...
First, consider the situation in which an object is written to a stream and then written again later. By default, anObjectOutputStreamwill maintain a reference to an object written to it. That means that if the state of the written object is written and then written again, the new state ...
This means if an object appears in an object graph multiple times, it will be written multiple times and will be deserialized as multiple, different objects. When references are disabled, circular references will cause serialization to fail. References are enabled or disabled with Kryo setReferences...
The java.io.ObjectOutputStream and java.io.ObjectInputStream classes are considered to be higher-level classes in the java.io package, and as we learned earlier, that means that you'll wrap them around lower-level classes, such as java.io.FileOutputStream and java.io.FileInputStream. ...
orreadUnsharedmay return aClassobject or enum constant obtainable elsewhere in the stream or through external means. If the deserialized object defines areadResolvemethod and the invocation of that method returns an array, thenreadUnsharedreturns a shallow clone of that array; this guarantees that ...
providing both forward and backward compatibility. This means fields can be added or removed without invalidating previously serialized bytes. Changing the type of a field is not supported. The forward and backward compatibility comes at a cost: the first time the class is encountered in the serial...
strict mode -- for now this means checking facets voidsetStrictValidation(boolean v) setEncodingStyle(v) booleanisMultiRefEmpty() SerializationPhasegetPhase() setPhase voidsetPhase(SerializationPhasev) isInTopLevelElement booleanisInTopLevelElement() ...
there needs be a mechanism to exchange data. One way to achieve this is to define your own protocol and transfer an object. This means that the receiving end must know the protocol used by the sender to re-create the object, which would make it very difficult to talk to third-party com...
if the class is not already available locally. (The class files themselves are not serialized, just the names of the classes.) All classes must be able to be loaded during deserialization using the normal class loading mechanisms. For applets this means they are loaded by theAppletClassLoader....