exstreamspeed Reference/es

Reference/es_mbc

struct es_mbc is an opaque data structure representing a class. A class forms part of the definition or schema of a database. It defines the set of fields, indices and parent relationships of a set of nodes. It corresponds to the definition of a table in a relational database. It can also be thought of like a C++ class which describes the structure and runtime characteristics of one or more objects (i.e. nodes).

es_mbc_new Create new database class.

es_mbc_newsub Create new database sub-class.

es_mbc_addfld Add a field to a class definition.

es_mbc_addfldidx Identify a field as part of an index.

es_mbc_addfldmbu Add save, load and delete callbacks for user-defined field.

es_mbc_addfldmbu_sd Wrapper over es_mbc_addfldmbu for storing string dictionaries.

es_mbc_addfldmbu_mb Wrapper over es_mbc_addfldmbu for storing database instances.

es_mbc_addfldstr Define size of user-defined fixed-width field.

es_mbc_getdefinition Retrieve the database definition that this class belongs to.

es_mbc_getclassid Retrieve classid assigned to class.

es_mbc_getclassname Retrieve class name for class.

es_mbc_getindextype Retrieve index type of class.

es_mbc_getbatchsize Retrieve batch size for class.

es_mbc_getparent Retrieve parent class, if applicable.

es_mbc_getextends Retrieve super class, if applicable.

es_mbc_getishidden Determine whether a class is a hidden class or not.

es_mbc_getnumflds Retrieve number of fields in class definition.

es_mbc_getnumfldidxs Retrieve number of fields in index definition of class.

es_mbc_getfldid Retrieve fieldid associated with a class and field name.

es_mbc_getfldname Retrieve name of field corresponding to a fieldid.

es_mbc_getfldtype Retrieve type of field corresponding to a fieldid.

es_mbc_getfldidxname Retrieve the name of the i-th index field.

es_mbc_getfldidxtype Retrieve the type of the i-th index field.

es_mbc_getmbu Retrieve callback functions for user-defined type.

[Back To Reference]