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URL: http://github.com/nativelibs4java/JNAerator/issues/117

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Subclasses don't get constructors · Issue #117 · nativelibs4java/JNAerator · GitHub
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Subclasses don't get constructors #117

Description

@berntie

I have the following struct:

typedef struct JnaExport
{
	int AftrNr;
	int KndNr;
	int ObjectVersion;

	char* JsonData;
	tOutputStatus OutputStatus;
} AuftragskopfOutputDtoJna;

with tOutputStatus being

enum tOutputStatus
{
	OUTPUTSTATUS_OK_WITH_DATA = 100,
	OUTPUTSTATUS_ERROR_NOT_FOUND = -404, //
        // ... many more
};

From that JNAerator generates the following Java class:

public class AuftragskopfOutputDtoJna extends Structure {
	public int AftrNr;
	public int KndNr;
	public int ObjectVersion;
	public Pointer JsonData;
	public int OutputStatus;

	public AuftragskopfOutputDtoJna() {
		super();
	}

	protected List<? > getFieldOrder() {
		return Arrays.asList("AftrNr", "KndNr", "ObjectVersion", "JsonData", "OutputStatus");
	}

	public AuftragskopfOutputDtoJna(int AftrNr, int KndNr, int ObjectVersion, Pointer JsonData, int OutputStatus) {
		super();
		this.AftrNr = AftrNr;
		this.KndNr = KndNr;
		this.ObjectVersion = ObjectVersion;
		this.JsonData = JsonData;
		this.OutputStatus = OutputStatus;
	}

	public AuftragskopfOutputDtoJna(Pointer peer) {
		super(peer);
	}

	public static class ByReference extends AuftragskopfOutputDtoJna implements Structure.ByReference {
	};
	public static class ByValue extends AuftragskopfOutputDtoJna implements Structure.ByValue {
	};
}

The documentation says "JNAerated structs all get ByReference and ByValue subclasses (that have a struct-pointer-copy constructor)" but my subclasses don't get that constructor. That's annoying because I don't know how to obtain a AuftragskopfOutputDtoJna.ByReference without that constructor and I'm thus forced to rely on a deprecated method for freeing memory:

	/**
	 * ...
	 * @deprecated use the safer method {@link #deleteAuftragskopfOutputDto(AuftragskopfOutputDtoJna.ByReference[])} instead
	 */
	@Deprecated 
	void deleteAuftragskopfOutputDto(PointerByReference dto);

How am I supposed to fix this? And could someone update the documentation, please.

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