Can I overload an interface in Java?
I want to define an interface with same name as other one, but different parameters. How can I do it? Please help.
public interface IFactory<T> {
IFactory<T> Select(List<String> fields);
IFactory<T> GroupBy(Expression<?> fields);
IFactory<T> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
public interface IFactory<T, Z> {
IFactory<T, Z> Select(List<String> fields);
IFactory<T, Z> GroupBy(Expression<?> fields);
IFactory<T, Z> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
I get following error:
java duplicate class: com.xxx.IFactory
java class interface duplicates
edited Nov 14 '18 at 11:53
barbsan
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
add a comment |
I want to define an interface with same name as other one, but different parameters. How can I do it? Please help.
public interface IFactory<T> {
IFactory<T> Select(List<String> fields);
IFactory<T> GroupBy(Expression<?> fields);
IFactory<T> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
public interface IFactory<T, Z> {
IFactory<T, Z> Select(List<String> fields);
IFactory<T, Z> GroupBy(Expression<?> fields);
IFactory<T, Z> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
I get following error:
java duplicate class: com.xxx.IFactory
java class interface duplicates
edited Nov 14 '18 at 11:53
barbsan
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
A common practice is to add a numeral to the name or some prefix/suffix. EgVector2,Vector3,Function,BiFunction
– flakes
Nov 14 '18 at 11:38
add a comment |
I want to define an interface with same name as other one, but different parameters. How can I do it? Please help.
public interface IFactory<T> {
IFactory<T> Select(List<String> fields);
IFactory<T> GroupBy(Expression<?> fields);
IFactory<T> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
public interface IFactory<T, Z> {
IFactory<T, Z> Select(List<String> fields);
IFactory<T, Z> GroupBy(Expression<?> fields);
IFactory<T, Z> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
I get following error:
java duplicate class: com.xxx.IFactory
java class interface duplicates
edited Nov 14 '18 at 11:53
barbsan
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
I want to define an interface with same name as other one, but different parameters. How can I do it? Please help.
public interface IFactory<T> {
IFactory<T> Select(List<String> fields);
IFactory<T> GroupBy(Expression<?> fields);
IFactory<T> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
public interface IFactory<T, Z> {
IFactory<T, Z> Select(List<String> fields);
IFactory<T, Z> GroupBy(Expression<?> fields);
IFactory<T, Z> Where(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> And(Object column, ConditionalMethods conditionalMethod, Object... value);
IFactory<T, Z> Or(Object column, ConditionalMethods conditionalMethod, Object... value);
T Take();
T TakeNewObject();
T TakeAndLock();
}
I get following error:
java duplicate class: com.xxx.IFactory
java class interface duplicates
java class interface duplicates
edited Nov 14 '18 at 11:53
barbsan
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
edited Nov 14 '18 at 11:53
barbsan
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
edited Nov 14 '18 at 11:53
barbsan
2,21811122
edited Nov 14 '18 at 11:53
barbsan
2,21811122
edited Nov 14 '18 at 11:53
barbsan
2,21811122
2,21811122
asked Nov 14 '18 at 11:33
elm race
232
asked Nov 14 '18 at 11:33
elm race
232
asked Nov 14 '18 at 11:33
elm race
232
232
A common practice is to add a numeral to the name or some prefix/suffix. EgVector2,Vector3,Function,BiFunction
– flakes
Nov 14 '18 at 11:38
add a comment |
A common practice is to add a numeral to the name or some prefix/suffix. EgVector2,Vector3,Function,BiFunction
– flakes
Nov 14 '18 at 11:38
A common practice is to add a numeral to the name or some prefix/suffix. Eg
Vector2, Vector3, Function, BiFunction– flakes
Nov 14 '18 at 11:38
A common practice is to add a numeral to the name or some prefix/suffix. Eg
Vector2, Vector3, Function, BiFunction– flakes
Nov 14 '18 at 11:38
add a comment |
1 Answer
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oldest
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You can't. You must use different names. That's how it is done in JDK interfaces.
For example, consider java.util.function.Function<T, R> vs. java.util.function.BiFunction<T, U, R>. Both are functional interfaces that represent a function, but the first represents a function with one argument (and a result) and the second represents a function with two arguments (and a result).
answered Nov 14 '18 at 11:37
Eran
280k37453539
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can't. You must use different names. That's how it is done in JDK interfaces.
For example, consider java.util.function.Function<T, R> vs. java.util.function.BiFunction<T, U, R>. Both are functional interfaces that represent a function, but the first represents a function with one argument (and a result) and the second represents a function with two arguments (and a result).
answered Nov 14 '18 at 11:37
Eran
280k37453539
add a comment |
You can't. You must use different names. That's how it is done in JDK interfaces.
For example, consider java.util.function.Function<T, R> vs. java.util.function.BiFunction<T, U, R>. Both are functional interfaces that represent a function, but the first represents a function with one argument (and a result) and the second represents a function with two arguments (and a result).
answered Nov 14 '18 at 11:37
Eran
280k37453539
add a comment |
You can't. You must use different names. That's how it is done in JDK interfaces.
For example, consider java.util.function.Function<T, R> vs. java.util.function.BiFunction<T, U, R>. Both are functional interfaces that represent a function, but the first represents a function with one argument (and a result) and the second represents a function with two arguments (and a result).
answered Nov 14 '18 at 11:37
Eran
280k37453539
You can't. You must use different names. That's how it is done in JDK interfaces.
For example, consider java.util.function.Function<T, R> vs. java.util.function.BiFunction<T, U, R>. Both are functional interfaces that represent a function, but the first represents a function with one argument (and a result) and the second represents a function with two arguments (and a result).
answered Nov 14 '18 at 11:37
Eran
280k37453539
answered Nov 14 '18 at 11:37
Eran
280k37453539
answered Nov 14 '18 at 11:37
Eran
280k37453539
answered Nov 14 '18 at 11:37
Eran
280k37453539
280k37453539
add a comment |
add a comment |
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A common practice is to add a numeral to the name or some prefix/suffix. Eg
Vector2,Vector3,Function,BiFunction– flakes
Nov 14 '18 at 11:38