CatalogTableINDEXFIELD Class Reference

#include <CatalogTables.h>

Collaboration diagram for CatalogTableINDEXFIELD:

[legend]

Public Member Functions
	CatalogTableINDEXFIELD (Database *db)
DbRetVal	insert (FieldNameList &fldList, void *indexPtr, void *tblPtr, char **&fptr)
DbRetVal	remove (void *iptr)
DbRetVal	getFieldNameAndType (void *iptr, char *&name, DataType &type)

---

Detailed Description

Definition at line 237 of file CatalogTables.h.

---

Constructor & Destructor Documentation

CatalogTableINDEXFIELD::CatalogTableINDEXFIELD

(

Database *

db

)

[inline]

Definition at line 241 of file CatalogTables.h.

{ systemDatabase_  = db; }

---

Member Function Documentation

DbRetVal CatalogTableINDEXFIELD::getFieldNameAndType	(	void *	iptr,
		char *&	name,
		DataType &	type
	)

Definition at line 447 of file CatalogTables.cxx.

References ErrNotExists, Chunk::getIterator(), Database::getSystemDatabaseChunk(), IndexFieldTableId, ChunkIterator::nextElement(), OK, and printError.

Referenced by DatabaseManagerImpl::openTable(), and TableImpl::printSQLIndexString().

{
    Chunk *ifChunk;
    ifChunk = systemDatabase_->getSystemDatabaseChunk(IndexFieldTableId);
    ChunkIterator ifIter = ifChunk->getIterator();
    void *data = NULL;
    while ((data = ifIter.nextElement())!= NULL)
    {
        if (((INDEXFIELD*)data)->indexPtr == index)
        {
            //store the field name
            name = ((FIELD*)(((INDEXFIELD*)data)->fieldPtr))->fldName_;
            type = ((FIELD*)(((INDEXFIELD*)data)->fieldPtr))->type_;
            return OK;
        }
    }
    printError(ErrNotExists,"Index %x not exists in catalog table", index);
    return ErrNotExists;
}

Here is the call graph for this function:

Here is the caller graph for this function:

DbRetVal CatalogTableINDEXFIELD::insert	(	FieldNameList &	fldList,
		void *	indexPtr,
		void *	tblPtr,
		char **&	fptr
	)

Definition at line 392 of file CatalogTables.cxx.

References Chunk::allocate(), DM_SystemDatabase, ErrAlready, INDEXFIELD::fieldPtr, Chunk::getIterator(), Database::getSystemDatabaseChunk(), IndexFieldTableId, INDEXFIELD::indexPtr, ChunkIterator::nextElement(), FieldNameList::nextFieldName(), OK, printDebug, printError, FieldNameList::resetIter(), and INDEXFIELD::tablePtr.

{

    Chunk *fChunk;
    fChunk = systemDatabase_->getSystemDatabaseChunk(IndexFieldTableId);
    fldList.resetIter();
    int i =0;
    char *fName =NULL;
    void *data = NULL;
    ChunkIterator ifIter = fChunk->getIterator();
    while (NULL != (fName = fldList.nextFieldName()))
    {
        ifIter = fChunk->getIterator();
        while ((data = ifIter.nextElement()) != NULL) {
            if (0 == strcmp(((FIELD *)((INDEXFIELD *) data)->fieldPtr)->fldName_, fName) && ((INDEXFIELD *)data)->tablePtr == tblPtr) {
                printError(ErrAlready, "Index on field \'%s\' already exists on table \'%s\' by name \'%s\'", ((FIELD *)((INDEXFIELD *)data)->fieldPtr)->fldName_, ((TABLE *)((INDEXFIELD *)data)->tablePtr)->tblName_, ((INDEX *)((INDEXFIELD *)data)->indexPtr)->indName_);
                return ErrAlready;
            }
        }  
        DbRetVal rv = OK;
        void *fieldptr = fChunk->allocate(systemDatabase_, &rv);
        if (NULL == fieldptr)
        {
            printError(rv,
                   "Could not allocate for USER catalog table");
            return rv;
        }
        INDEXFIELD *fldInfo = (INDEXFIELD*)fieldptr;
        fldInfo->tablePtr = tblPtr;
        fldInfo->fieldPtr = (FIELD*)fptr[i++];
        fldInfo->indexPtr = indexPtr;
        printDebug(DM_SystemDatabase,"One Row inserted into INDEXFIELD %x", fldInfo);
    }
    return OK;
}

Here is the call graph for this function:

DbRetVal CatalogTableINDEXFIELD::remove

(

void *

iptr

)

Definition at line 429 of file CatalogTables.cxx.

References DM_SystemDatabase, Chunk::free(), Chunk::getIterator(), Database::getSystemDatabaseChunk(), IndexFieldTableId, ChunkIterator::nextElement(), OK, and printDebug.

{
    Chunk *fChunk;
    fChunk = systemDatabase_->getSystemDatabaseChunk(IndexFieldTableId);
    ChunkIterator fIter = fChunk->getIterator();
    void *data = NULL;
    while ((data = fIter.nextElement())!= NULL)
    {
        if (((INDEXFIELD*)data)->indexPtr == iptr)
        {
            //remove this element
            fChunk->free(systemDatabase_, data);
            printDebug(DM_SystemDatabase,"One Row deleted from INDEXFIELD %x", data);
        }
    }
    return OK;
}

Here is the call graph for this function:

---

The documentation for this class was generated from the following files:

• include/CatalogTables.h
• src/server/CatalogTables.cxx

---