Hello, in my DMSServiceLocator.class, I have a method called getParser() with
a return type called Parser. I'm trying to return a service called
AutoMateParser with an Impl that extends Parser, however I'm' getting a
compiling error saying Parser is required, found AutoMateParser. When I
return new AutoMateServiceImpl() rather than my service interface, I receive
no compiling errors. It doesn't appear my getParser() method realizes
autoMateParser is of the same type. I tried casting AutoMateParser with
Parser, "return (Parser) autoMateParser;" which resolved compiling errors,
but received a cast exception. I'm wondering if anybody knows how to do
this. Thanks in advance.
below is a sample of my code.
AppModule
public static void bind(ServiceBinder binder) {
binder.bind(AutoMateParser.class, AutoMateParserImpl.class);
}
public class DMSServiceLocator {
@Inject
private AutoMateParser autoMateParser;
public Parser getParser() {
if(automate) {
return autoMateParser();
} else {
//Different data scrubber, but also extends Parser
return homenetParser();
}
}
}
public class AutoMateParserImpl extends Parser implements AutoMateParser {
protected Vehicle parseCar(String vehicleData) {
//some data scrubbing code
}
}
public class Parser {
//some csv line reader code
protected abstract Vehicle parseCar(String carData);
}
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