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From: Ramesh (rramesh1_at_[hidden])
Date: 2008-08-12 01:40:12
Hi.
I am using boost multi-index container for storing objects of type class A,
in the class key1 & Key 3 are unique and key2 is non-unique. I try to insert
objects of type A and it works fine. No issues.
At some point after the insertion, I wish to modify the key2 to 20 in the
container. Can I do this with modify? If yes How do I define the iterator
(since I need to do a find based on key1 but modify key2 in the container)
Here is the code snippet:
-----------
class A {
private:
std::string key1;
long key2;
long key3;
< Other class members >
};
struct DataMap {
std::string key1;
long key2;
long key3;
A *pObj;
};
typedef multi_index_container<
DataMap,
indexed_by<
ordered_unique<
tag <Key1>, BOOST_MULTI_INDEX_MEMBER(DataMap,std::string,Key1)>,
ordered_non_unique<
tag<Key2>,BOOST_MULTI_INDEX_MEMBER(DataMap,long,Key2)>,
ordered_unique<
tag<Key3>,BOOST_MULTI_INDEX_MEMBER(DataMap,long,Key3)>
>
> tDMap;
class myclass {
private:
tDMap Map;
public:
insert(std::string, long , long, A *);
};
myclass::insert(std::string key1, long key2, long key3, A *pObj) {
}
main() {
std::string key1 = "Test String";
A abc;
abc.key1 = key1;
abc.key2 = 10;
abc.key3 = 400;
insert(key1, key2, key3, &abc);
}
-------------------
Thanks in advance!
Ramesh
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