kexi
KexiDB::QueryColumnInfo Class Reference
#include <queryschema.h>
Detailed Description
Helper class that assigns additional information for the column in a query.The following information is assigned:
- alias
- visibility QueryColumnInfo::Vector is created and returned by QuerySchema::fieldsExpanded(). It is efficiently cached within the QuerySchema object.
Definition at line 48 of file queryschema.h.
Public Types | |
typedef QPtrVector < QueryColumnInfo > | Vector |
typedef QPtrList< QueryColumnInfo > | List |
typedef QPtrListIterator < QueryColumnInfo > | ListIterator |
Public Member Functions | |
QueryColumnInfo (Field *f, const QCString &_alias, bool _visible, QueryColumnInfo *foreignColumn=0) | |
QCString | aliasOrName () const |
QString | captionOrAliasOrName () const |
int | indexForVisibleLookupValue () const |
void | setIndexForVisibleLookupValue (int index) |
QueryColumnInfo * | foreignColumn () const |
QString | debugString () const |
Public Attributes | |
Field * | field |
QCString | alias |
bool | visible: 1 |
Member Function Documentation
QCString KexiDB::QueryColumnInfo::aliasOrName | ( | ) | const [inline] |
- Returns:
- alias if it is not empty, field's name otherwise.
Definition at line 59 of file queryschema.h.
QString KexiDB::QueryColumnInfo::captionOrAliasOrName | ( | ) | const [inline] |
- Returns:
- field's caption if it is not empty, field's alias otherwise. If alias is also empty - returns field's name.
Definition at line 65 of file queryschema.h.
int KexiDB::QueryColumnInfo::indexForVisibleLookupValue | ( | ) | const [inline] |
- Returns:
- index of column with visible lookup value within the 'fields expanded' vector. -1 means no visible lookup value is available because there is no lookup for the column defined. Cached for efficiency as we use this information frequently.
- See also:
- LookupFieldSchema::visibleVolumn()
Definition at line 75 of file queryschema.h.
void KexiDB::QueryColumnInfo::setIndexForVisibleLookupValue | ( | int | index | ) | [inline] |
Sets index of column with visible lookup value within the 'fields expanded' vector.
Definition at line 78 of file queryschema.h.
QueryColumnInfo* KexiDB::QueryColumnInfo::foreignColumn | ( | ) | const [inline] |
- Returns:
- non-0 if this column is a visible column for other column
Definition at line 81 of file queryschema.h.
QString QueryColumnInfo::debugString | ( | ) | const |
Member Data Documentation
true if this column is visible to the user (and its data is fetched by the engine)
Definition at line 87 of file queryschema.h.
The documentation for this class was generated from the following files: