how to store data in a different class object?

[hanna88]

hello..
is there a way of storing data to other class object.
here's the problem.
class Repository is where it reads through the sentences and tokenize it
into words . and what i did is by using strtok i keep all the tokenize words into a vector.and planning to store this vector of word into class Word object.

im not sure whether this is a good idea because it seems hard to store a list of vector into an object of different class.

any help would be great! thanks!

[Banfa]

Are you planing on storing the whole vector in a single instance of the Word class or are you planning to store each entry in the vector in a separate instance of the class?

Either way it is a fairly simple job to just create your Word class with a constructor that takes the right data.

[hanna88]

but how should i indicate the word should be stored in class Word constructor.
will this do .. Word* p where p is the tokenize word and keep updated in a while loop for strtok. thanks for your input.

[sumeshnb]

Hi,
There are many ways in which you can store data into other class object, Bafna already gave you one way.
you just define your other calss constructor like following:
Word::Word(verc tor<words> &vwords)
{
m_vectorWords = vwords;//m_verctorWords is a data member of type
// vector<words>
}

One another possible way could be(In case the Word object already exisitng) implement a interface function in otherclass like following:

Word::setVector Word(vector<wor d> &vw)
{
m_vectorWords = vw;//m_verctorWords is a data member of type
// vector<words>
}

and call this interface function from your Repository class after tokenizing and putting the words in to token.

[hanna88]

hi.thank you for your reply.

Word::setVector Word(vector<wor d> &vw)
{
m_vectorWords = vw;//m_verctorWords is a data member of type
// vector<words>
}

and call this interface function from your Repository class after tokenizing and putting the words in to token.

just quick que.. is &vw is where i have the tokenize word in this case?
i was given a constructor Word(string word); i reckon i cant just passed vector<word> into this constructor.so if i do it this way,will the data be passed to the Word object since i didnt declare it in a constructor?

[sumeshnb]

Yes in "vector<wor d> &vw" you have the words tokenized.

From your reply I understand your constructor of Word looks like
Word::Word(stri ng word), If that is the case you may have to write a new constructor..
You cannot pass vector<word> to your existing constructor...!

If the explanation is not satisfactory, please give more details of the classes with examples.

[hanna88]

hi.this is the h.file for the code.

class Word {

		private:
			std::string word;

		public:
		Sentence *getSentence();
		void setSentence(Sentence *sentence);
		Word(string word); 
		virtual string getKey() { return word;};
		virtual ~Word();
		virtual string asString();
		__declspec( property(get = getSentence, put = setSentence))
		Sentence *mySentence;
};

class Sentence {

		public:
		Document *getDocument();
		void setDocument(Document *document);
		Sentence();
		virtual ~Sentence();
		virtual string asString();
		__declspec( property(get = getDocument, put = setDocument))
		Document *myDocument;
};

class Document {

		private:
		string documentId;

		public:
		Repository *getRepository();
		void setRepository(Repository *repository);
		Document(string documentId);
		virtual ~Document();
		virtual string getKey() { return documentId;};
		virtual string asString();
		__declspec( property(get = getRepository, put = setRepository))
		Repository *myRepository;
};

class WordCollection : public vector<Word*> {

		public:
		string asString() {
		string result;
		WordCollection::iterator iter = begin();

		for (; iter != end(); iter++) {
			result += (*iter)->getKey() + "|" +
			(*iter)->mySentence->asString() + "|" +
			(*iter)->mySentence->myDocument->getKey() + "\n";}
		return result;
		}
};

class Repository {

		public:
		virtual ~Repository();
		string asString();
		Document *addDocument(iostream& inStream, string documentId);
		void clear();
		void search(const string& keyword, WordCollection& coll);
};

i try to start by doing the function below where i did convert it to string using getline and try to tokenize the str.

Document *addDocument(iostream& inStream, string documentId);

here' the problem.i dont understand how can i store the tokenize word into Class Word.same goes for sentences which will be store in Class Sentence if i tried adding all the tokenize word into vector.
the other problem is how can i store the Word pointers in each Sentence object and etc.

any examples would be really great.
thanks

[sumeshnb]

If I understand your problem correctly , I would write the
function
Document *addDocument(io stream& inStream, string documentId);
as follows:



Document *Repository::ad dDocument(iostr eam& inStream, string documentId)
{

char line[250];
inStream.getlin e(line,250);

char * ptrToToken = NULL;
ptrToToken = strtok (line," ,.-");//assumes words are separated
//by spaces,comma,do t or hyphen

Sentence * ptrToSent = new Sentence();

Document * ptrToDoc = new Document(docume ntId);

ptrToSent -> setDocument(ptr ToDoc);
ptrToDoc ->setRepository( this);

while (ptrToToken != NULL)
{
Word * ptrToWord = new Word(ptrToToken );
ptrWord -> setSentence(ptr ToSent);
ptrToScent -> addWord(ptrToWo rd)
ptrToToken = strtok (NULL, " ,.-");
}


return ptrToDoc;
}



Before writing the above function , I assume there is a
data member and member function in Sentence class like the following :

Data member:
WordCollection wordColl;

member function:
Sentence::addWo rd(Word * ptrToWord)
{
wordColl.push_b ack(ptrToWord);
}

[hanna88]

i'll try to understand the code.u've been a great help! thank you . :D