serialization

问题 When .NET's BinaryFormatter is used to serialize an object graph, is any type of compression applied? I ask in the context of whether I should worry about the object graph having many repeated strings and integers. Edit - Hold on, if strings are interned in .NET, there's no need to worry about repeated strings, right? 回答1: No, it doesn't provide any compression but you can compress the output yourself using the GZipStream type. Edit: Mehrdad has a wonderful example of this technique in his

问题 When .NET's BinaryFormatter is used to serialize an object graph, is any type of compression applied? I ask in the context of whether I should worry about the object graph having many repeated strings and integers. Edit - Hold on, if strings are interned in .NET, there's no need to worry about repeated strings, right? 回答1: No, it doesn't provide any compression but you can compress the output yourself using the GZipStream type. Edit: Mehrdad has a wonderful example of this technique in his

问题 I am currently saving my object graph in xml file with boost serialization. The library is great, it automatically restores the objects and all member pointers and references. Problem : I need to have random access to the data ( read just one object, or delete just one object ). With boost serialization the scenario is like this : --load all objects from file -- use and modify objects -- write all objects to archive again The drawback with this is if only one object changed , I want to write

问题 I succeed in serializing instances of the following class but when I try to deserialize right after I get the following error message: " Invalid field in source data: 0" . I have no clue what it refers to because I find below class straight forward. I just updated protobuf-net version to 2.00.614 (runtime version: 2.0.50727). Any idea whether I am possibly overlooking something trivial? [ProtoContract] public class TimeSeriesProperties { [ProtoMember(1)] public string TimeSeriesName { get;

问题 I am working on an object encryption class. I have everything worked out but I want to be able to encrypt/decrypt any object type with one deserialize method. As of now the only thing holding me up is the deserialize method. I have the function returning type(object) in the hopes of returning a weak typed object. It works as long as I cast the type during the return value assignment, but If I deserialize into type 'object' the result is byte[]. This means that I have to write a deserialize

问题 I asked a previous question about serialization and validation. Someone mentioned using the JSON gem which allows me to tell my object how to serialize with the to_json method, however Ruby seems to do LOTS of complicated things really easily, however on the flip side some really simple things seem to be quite complicated, Serialization being one of those things. I want to find out if there is a way to have a clean object: class CleanClass attr_accessor :variable1 attr_accessor :variable2

问题 I set spring.jackson.serialization.WRITE_DATES_AS_TIMESTAMPS=false in the Spring Boot config but the Jackson serializer still produces [1942,4,2] instead of "1942-04-02" for a DateTime value. Some debugging snapshots In org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration.Jackson2ObjectMapperBuilderCustomizerConfiguration.StandardJackson2ObjectMapperBuilderCustomizer#customize there's configureFeatures(builder, this.jacksonProperties.getSerialization()); which shows that

问题 I set spring.jackson.serialization.WRITE_DATES_AS_TIMESTAMPS=false in the Spring Boot config but the Jackson serializer still produces [1942,4,2] instead of "1942-04-02" for a DateTime value. Some debugging snapshots In org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration.Jackson2ObjectMapperBuilderCustomizerConfiguration.StandardJackson2ObjectMapperBuilderCustomizer#customize there's configureFeatures(builder, this.jacksonProperties.getSerialization()); which shows that

问题 I got a decimal property, like [XmlElementAttribute(DataType = "decimal")] decimal Price The problem is that I wanna force it to serialize always with precision of 2, but if the price is 10.50 it will be serialized to XML like <Price>10.5</Price> . Theres any way to force it (without creating a new property or changing the get of this property? I'm looking for some way to do this only sending a pattern to the XmlSerializer (or the XmlElementAttribute) or any smart way to do this ? Thanks 回答1:

问题 I got a decimal property, like [XmlElementAttribute(DataType = "decimal")] decimal Price The problem is that I wanna force it to serialize always with precision of 2, but if the price is 10.50 it will be serialized to XML like <Price>10.5</Price> . Theres any way to force it (without creating a new property or changing the get of this property? I'm looking for some way to do this only sending a pattern to the XmlSerializer (or the XmlElementAttribute) or any smart way to do this ? Thanks 回答1: