Java, convert between two different generic instances -


i want make adapter interface (and implementations) use multiple similar external libraries.

for example, there interfaces of external libraries. these libraries guide implement converter , register extend features.

lib a

public interface aconverter<s, d> {     d convert(s source); }

lib b

public interface bconverter<s, d> {   d convert(s source); }

both interfaces specify same method.

what want use own myconverter interface.

public interface myconverter<s, d> {   d convert(s source); }

a user implements class , library converts implementation either liba's implementation of aconverter or libb's implementation of bconverter. possible?

edit:

i not want factory pattern or extends liba interface , libb interface. myconverter core library, liba , libb external plugable libraries.

what trying is,

public alibadapter {     aconverter change(myconverter convert) {         /**          * can do?          */         return aconverter;     } }

your interface can extend existing interfaces:

public interface myconverter<s, d> extends aconverter<s, d>, bconverter<s, d> {   ... }

you can use in place of either 1 of library interfaces.

if methods have same name (convert), can overridden. else you'd have make sure call implementations own method using java 8 default method implementations.


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