Marshaling and serialization are loosely synonymous in the context of remote procedure call, but semantically different as a matter of intent. In particular, marshaling is about getting parameters from here to there, while serialization is about copying structured data to or from a primitive form such as a byte stream. In this sense, serialization is … Read more
Take a look at GWT’s Overlay Types. I think this is by far the easiest way to work with JSON in GWT. Here’s a modified code example from the linked article: public class Customer extends JavaScriptObject { public final native String getFirstName() /*-{ return this.first_name; }-*/; public final native void setFirstName(String value) /*-{ this.first_name = … Read more
Old question, but I recently had to do this myself and all the existing answers are poor, so… The best solution for marshaling a variable-length array in a struct is to use a custom marshaler. This lets you control the code that the runtime uses to convert between managed and unmanaged data. Unfortunately, custom marshaling … Read more
As long as the managed code does not resize the vector, you can access the buffer and pass it as a pointer with vector.data() (for C++0x) or &vector[0]. This results in a zero-copy system. Example C++ API: #define EXPORT extern “C” __declspec(dllexport) typedef intptr_t ItemListHandle; EXPORT bool GenerateItems(ItemListHandle* hItems, double** itemsFound, int* itemCount) { auto … Read more
There’s some virtue in FinalReleaseComObject, it will crash your program quicker. “COM object that has been separated from its underlying RCW cannot be used” is the CLR telling you that you taking care of COM reference counts yourself instead of leaving it up the CLR was a mistake. Your mileage may vary, you cannot really … Read more
OregonGhost’s answer is only correct if the char* returned from GetDir is either allocated in HGlobal or LocalAlloc. I can’t remember which one but the CLR will assume that any string return type from a PInvoke function was allocated with one or the other. A more robust way is to type the return of GetDir … Read more
Because this was not answered in “answer” but in comment I will post an answer: As @Max-Gontar pointed you should use LocationType.class.getClassLoader() to get the correct ClassLoader and get rid of ClassNotFound exception, i.e.: in.readParceleable(LocationType.class.getClassLoader());
Note: I’m the EclipseLink JAXB (MOXy) lead and a member of the JAXB 2 (JSR-222) expert group. JAXBContext is thread safe and should only be created once and reused to avoid the cost of initializing the metadata multiple times. Marshaller and Unmarshaller are not thread safe, but are lightweight to create and could be created … Read more
Date/time values are being casted/parsed in a locale aware fashion Update: this is the default behavior with the CakePHP application template versions prior to 3.2.5. As of 3.2.5 locale parsing is not enabled by default anymore, which will make the date/time marshalling logic expect a default format of Y-m-d H:i:s instead. In the marshalling process, … Read more
You can use an XmlAdapter to customize how a date type is written to XML. package com.example; import java.text.SimpleDateFormat; import java.util.Date; import javax.xml.bind.annotation.adapters.XmlAdapter; public class DateAdapter extends XmlAdapter<String, Date> { private final SimpleDateFormat dateFormat = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”); @Override public String marshal(Date v) throws Exception { synchronized (dateFormat) { return dateFormat.format(v); } } @Override public … Read more