libdballe 9.11
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String buffer for composing database queries. More...
#include <querybuf.h>
Public Member Functions | |
Querybuf (size_t reserve=512) | |
Querybuf (const Querybuf &)=default | |
Querybuf (Querybuf &&)=default | |
Querybuf & | operator= (const Querybuf &o)=default |
Querybuf & | operator= (Querybuf &&o)=default |
void | clear () |
Reset the querybuf to contain the empty string. | |
void | start_list (const char *sep) |
Begin a list of items separated by the given separator. | |
void | start_list_item () |
Notify the start of a new list item. | |
void | append_int (int val) |
Append an integer value. | |
void | appendf (const char *fmt,...) __attribute__((format(printf |
Append a formatted string to the querybuf. | |
void void | append_list (const char *str) |
Append a string to the querybuf, as part of a list. | |
void | append_listf (const char *fmt,...) __attribute__((format(printf |
Append a formatted string to the querybuf, as part of a list. | |
void void | append_varlist (const std::string &varlist) |
Append a comma-separated list of integer varcodes parsed from a varlist=B12101,B12013 query parameter. | |
void | append_varlist (const std::set< wreport::Varcode > &varlist) |
Append a comma-separated list of integer varcodes. | |
Public Attributes | |
bool | list_first |
char | list_sep [10] |
String buffer for composing database queries.
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explicit |
reserve | Initial preallocated size for the buffer. If this is chosen wisely, there is no need to reallocate space while composing the query. |
References Querybuf().
Referenced by Querybuf().
void void dballe::sql::Querybuf::append_list | ( | const char * | str | ) |
Append a string to the querybuf, as part of a list.
This function will prepend str with the current list separator, unless it is the first item added to the list.
str | The string to append |
References append_list().
Referenced by append_list().
void dballe::sql::Querybuf::append_listf | ( | const char * | fmt, |
... ) |
Append a formatted string to the querybuf, as part of a list.
This function will prepend str with the current list separator, unless it is the first item added to the list.
fmt | printf-style format string. |
References append_listf().
Referenced by append_listf().
void dballe::sql::Querybuf::appendf | ( | const char * | fmt, |
... ) |
Append a formatted string to the querybuf.
fmt | The string to append, which will be formatted in printf style |
void dballe::sql::Querybuf::start_list | ( | const char * | sep | ) |
Begin a list of items separated by the given separator.
Items are added using append_list().
sep | The separator to add between every list item |