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Bitwise operations with Enumerated types

 
Muthuraj Muthiah
Greenhorn
Posts: 1
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I am using COM4J to integrate my Java application with SDF (Autodesk) compoent toolkit in COM. COM4J generated wrapper interfaces or proxies for this COM object and one of the method signature is

@VTID(17)
void open(
java.lang.String sdfPath,
sdf.com.kit.SdfOpenFlags openFlags,
boolean useKif);

Where the openFlags argument is of type enum.
public enum SdfOpenFlags implements ComEnum {
sdfOpenRead(1),
sdfOpenUpdate(2),
sdfCreateNew(4),
sdfCreateAlways(8),
sdfOpenAlways(16),
sdfOpenExisting(32),
;

private final int value;
SdfOpenFlags(int value) { this.value=value; }
public int comEnumValue() { return value; }
}

The corresponding VB example to call this COM function is

Rem - Create a new SDF opened for write.
openFlags = sdfOpenUpdate Or sdfCreateAlways
toolkit.Open "c:\temp\TEST.SDF", openFlags, True

I would like to use Java the same way but got compilation errors.

toolkit.open("c:\\Temp\\test.sdf", SdfOpenFlags.sdfCreateAlways | SdfOpenFlags.sdfOpenUpdate, true);

This leads to compilation errors as "The operator | is undefined for argument type(s) sdf.com.kit.SdfOpenFlags, sdf.com.kit.SdfOpenFlags

I am not sure how I should use the OR operator in this case in Java.
 
KR Campbell
Ranch Hand
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toolkit.open("c:\\Temp\\test.sdf", SdfOpenFlags.sdfCreateAlways | SdfOpenFlags.sdfOpenUpdate, true);


might have a better chance.
 
Hao Wu
Greenhorn
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Hallo,

I am also using com4j to generate wrapper (*.java) from DLL, I successfully generated a set of *.java files, but I can not complie them.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
$ javac Planet.java
Planet.java:3: 'class' or 'interface' expected
public enum Planet {
^
1 error
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
"enum" type can not be identified. I use jdk1.5.0_08, com4j.dll and com4j.jar are also in lib path.

How do you compile the *.java file?

Thanks.
 
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