Access “this” from Java anonymous class
up vote
130
down vote
favorite
Given the following code:
public interface Selectable {
public void select();
}
public class Container implements Selectable {
public void select() {
...
}
public void createAnonymousClass() {
Selectable s = new Selectable() {
public void select() {
//see comment below.
}
};
}
}
I want to access Container.select() from within my anonymous class' select() method. However, this.select() would again call the anonymous class' select() method.
My suggestion would be:
Introduce a field into Container, e.g.
private Container self = this;
Now I can access Container.select() by calling self.select() from within the anonymous class.
Is this a reasonable way? Or are there any better ways?
java this anonymous-class
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
add a comment |
up vote
130
down vote
favorite
Given the following code:
public interface Selectable {
public void select();
}
public class Container implements Selectable {
public void select() {
...
}
public void createAnonymousClass() {
Selectable s = new Selectable() {
public void select() {
//see comment below.
}
};
}
}
I want to access Container.select() from within my anonymous class' select() method. However, this.select() would again call the anonymous class' select() method.
My suggestion would be:
Introduce a field into Container, e.g.
private Container self = this;
Now I can access Container.select() by calling self.select() from within the anonymous class.
Is this a reasonable way? Or are there any better ways?
java this anonymous-class
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
add a comment |
up vote
130
down vote
favorite
up vote
130
down vote
favorite
Given the following code:
public interface Selectable {
public void select();
}
public class Container implements Selectable {
public void select() {
...
}
public void createAnonymousClass() {
Selectable s = new Selectable() {
public void select() {
//see comment below.
}
};
}
}
I want to access Container.select() from within my anonymous class' select() method. However, this.select() would again call the anonymous class' select() method.
My suggestion would be:
Introduce a field into Container, e.g.
private Container self = this;
Now I can access Container.select() by calling self.select() from within the anonymous class.
Is this a reasonable way? Or are there any better ways?
java this anonymous-class
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
Given the following code:
public interface Selectable {
public void select();
}
public class Container implements Selectable {
public void select() {
...
}
public void createAnonymousClass() {
Selectable s = new Selectable() {
public void select() {
//see comment below.
}
};
}
}
I want to access Container.select() from within my anonymous class' select() method. However, this.select() would again call the anonymous class' select() method.
My suggestion would be:
Introduce a field into Container, e.g.
private Container self = this;
Now I can access Container.select() by calling self.select() from within the anonymous class.
Is this a reasonable way? Or are there any better ways?
java this anonymous-class
java this anonymous-class
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
edited Jul 5 '09 at 15:25
Tom Hawtin - tackline
126k28179266
126k28179266
asked Jul 5 '09 at 14:03
Bob
2,95173866
asked Jul 5 '09 at 14:03
Bob
2,95173866
asked Jul 5 '09 at 14:03
Bob
2,95173866
2,95173866
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
up vote
249
down vote
accepted
Container.this.select();
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
2
I didn't know eventhiskeywords could be differentiated just as methods and attributes can. +1
– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify ExactlyContainerclass here. Any of its ancestors won't be accepted.
– velis
Dec 9 '17 at 13:34
add a comment |
up vote
41
down vote
You can write Container.this.select() to distinct from the inner class !
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
249
down vote
accepted
Container.this.select();
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
2
I didn't know eventhiskeywords could be differentiated just as methods and attributes can. +1
– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify ExactlyContainerclass here. Any of its ancestors won't be accepted.
– velis
Dec 9 '17 at 13:34
add a comment |
up vote
249
down vote
accepted
Container.this.select();
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
2
I didn't know eventhiskeywords could be differentiated just as methods and attributes can. +1
– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify ExactlyContainerclass here. Any of its ancestors won't be accepted.
– velis
Dec 9 '17 at 13:34
add a comment |
up vote
249
down vote
accepted
up vote
249
down vote
accepted
Container.this.select();
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
Container.this.select();
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
answered Jul 5 '09 at 14:07
Mykola Golubyev
43.2k127094
43.2k127094
2
I didn't know eventhiskeywords could be differentiated just as methods and attributes can. +1
– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify ExactlyContainerclass here. Any of its ancestors won't be accepted.
– velis
Dec 9 '17 at 13:34
add a comment |
2
I didn't know eventhiskeywords could be differentiated just as methods and attributes can. +1
– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify ExactlyContainerclass here. Any of its ancestors won't be accepted.
– velis
Dec 9 '17 at 13:34
2
2
I didn't know even
this keywords could be differentiated just as methods and attributes can. +1– logo_writer
Jun 6 '16 at 6:50
I didn't know even
this keywords could be differentiated just as methods and attributes can. +1– logo_writer
Jun 6 '16 at 6:50
It should be noted that you have to specify Exactly
Container class here. Any of its ancestors won't be accepted.– velis
Dec 9 '17 at 13:34
It should be noted that you have to specify Exactly
Container class here. Any of its ancestors won't be accepted.– velis
Dec 9 '17 at 13:34
add a comment |
up vote
41
down vote
You can write Container.this.select() to distinct from the inner class !
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
add a comment |
up vote
41
down vote
You can write Container.this.select() to distinct from the inner class !
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
add a comment |
up vote
41
down vote
up vote
41
down vote
You can write Container.this.select() to distinct from the inner class !
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
You can write Container.this.select() to distinct from the inner class !
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
edited May 14 '12 at 1:28
Eng.Fouad
84k53244355
84k53244355
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
answered Jul 5 '09 at 14:08
PeterMmm
18.2k95599
18.2k95599
add a comment |
add a comment |
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