On Wed, Jan 10, 2018 at 8:30 AM, <l...@pinkfroot.com> wrote:
> Of course! Thank you!
>
> I mocked up a full working example here:
> https://play.golang.org/p/OUtbbAbbUF1
>
> Any idea though how I would keep deletions in sync though?
func (m SomeStructMap) DeleteByF1(s string) {
if v, ok:=m.f1Map[s]; ok {
delete(m.f1Map,s)
delete(m.f2Map,v.Field2)
}
}
>
> On Wednesday, January 10, 2018 at 3:24:37 PM UTC, Burak Serdar wrote:
>>
>> On Wed, Jan 10, 2018 at 7:57 AM, <l...@pinkfroot.com> wrote:
>> > I'm trying to come up with a data structure that I can search for map
>> > values
>> > quickly without having to iterate an entire (and large) map to find a
>> > value.
>> >
>> > Essentially I have a map that contains lots of data and the key is the
>> > primary identifier where most of the lookups go to. This is very quick
>> > to
>> > lookup and/or fail. I also have some very frequent queries to search
>> > for
>> > values inside the map. This is slow at the moment as I have to iterate
>> > the
>> > entire map to look for a value.
>> >
>> > What I am trying to do is to create a "shadow" map that has a reference
>> > to
>> > the pointer. This way when the original is deleted from the primary map
>> > it
>> > should/will fall off from the shadow map. However as you cannot set a
>> > struct to nil this doesn't seem to work.
>>
>> One way of doing this could be:
>>
>> type SomeStruct struct {
>> Field1 string
>> Field2 string
>> ...
>> }
>>
>> type SomeStructMap struct {
>> f1Map map[string]*SomeStruct
>> f2Map map[string]*SomeStruct
>> }
>>
>> func (m SomeStructMap) GetByF1(s string) (*SomeStruct,bool) {return
>> m.f1Map[s]}
>> func (m SomeStructMap( GetByF2(s string) (*SomeStruct,bool) {return
>> m.f2Map[s]}
>> func (m SomeStructMap) Set(x *SomeStruct) {
>> m.f1Map[x.Field1]=x
>> m.f2Map[x.Field2]=x
>> }
>>
>> Then use instances of SomeStructMap to store and lookup data.
>>
>> >
>> > https://play.golang.org/p/xUP-LEruwVX
>> >
>> > Any ideas on how I could approach this?
>> >
>> > Thanks!!
>> >
>> > --
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