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Posted to dev@commons.apache.org by James Carman <ja...@carmanconsulting.com> on 2004/02/25 19:50:03 UTC
[COLLECTIONS] MultiHashMap.get()
In the documentation for MultiHashMap, it claims "Getting a value will
always return a Collection, holding all the values put to that key."
However, the following code fails...
final MultiHashMap map = new MultiHashMap();
assertNotNull( map.get( "Hello" ) );
>From the documentation, I would think that the get() method should return an
EMPTY (and probably unmodifiable) collection, not a null reference. Am I
misinterpreting it?
Re: [COLLECTIONS] MultiHashMap.get()
Posted by Stephen Colebourne <sc...@btopenworld.com>.
Javadoc of MultiMap improved dramatically. This involved adding methods to
the MultiMap interface, however they override methods in Map so the change
is backwards compatible.
Stephen
----- Original Message -----
From: "Stephen Colebourne" <sc...@btopenworld.com>
> Yes, this will need a javadoc fix. The null is returned to indicate that
> there are no values mapped to this key (as per normal Map API).
>
> Stephen
>
> ----- Original Message -----
> From: "James Carman" <ja...@carmanconsulting.com>
> In the documentation for MultiHashMap, it claims "Getting a value will
> always return a Collection, holding all the values put to that key."
> However, the following code fails...
>
>
>
> final MultiHashMap map = new MultiHashMap();
>
> assertNotNull( map.get( "Hello" ) );
>
>
>
> From the documentation, I would think that the get() method should return
an
> EMPTY (and probably unmodifiable) collection, not a null reference. Am I
> misinterpreting it?
>
>
>
>
>
>
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Re: [COLLECTIONS] MultiHashMap.get()
Posted by Stephen Colebourne <sc...@btopenworld.com>.
Yes, this will need a javadoc fix. The null is returned to indicate that
there are no values mapped to this key (as per normal Map API).
Stephen
----- Original Message -----
From: "James Carman" <ja...@carmanconsulting.com>
In the documentation for MultiHashMap, it claims "Getting a value will
always return a Collection, holding all the values put to that key."
However, the following code fails...
final MultiHashMap map = new MultiHashMap();
assertNotNull( map.get( "Hello" ) );
>From the documentation, I would think that the get() method should return an
EMPTY (and probably unmodifiable) collection, not a null reference. Am I
misinterpreting it?
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