LIBRARY «SETS»

The Lotus Domino IBM platform uses Lotus Script, based on the BASIC syntax, as its main language. It is executed in certain event handlers of the objects of this platform. To optimize their code, Lotus Domino provides the ability to use libraries in text files ".lss" with Lotus Script, which are imported before executing the event handler. The "sets" library is based on this type of import and is stored in two text files "sets.lss" and "errors.lss". The archive attached to this also contains a chm-file of help with a description. Link to download the library with the help file in English: Lotus.Script.Library_Sets_.En.zip.

The main purpose of this library was to create a program object that would allow its quick filling with data and their subsequent quick search. This allows you to avoid excessive indexing of databases. The functionality of "Hashtable" allows the use of additional keys and an iterator for viewing the table. The "Hashtable" class implements a hash table or dictionary using strings and other objects as keys (as opposed to the numeric indexes of ordinary arrays) and is based on the use of a binary ordered tree for quick search of values. The problem of bypassing the platform limitation on the array size of 65535 elements by adding an array list class object with the corresponding methods is also solved. That is, the latter object implements functionality similar to standard arrays without the risk of overflow (the "ArrayList" class). The library functions and procedures that are designed to work with sets, as a rule, support work with "ArrayList" and "Hashtable" as parameters. Based on the basic types "ArrayList" and "Hashtable", "ArrayList2" and "Stringtable" are implemented, respectively, which have an extended set of methods. The latter of them is added to support dictionaries with string keys. The functionality of queue objects (class "Queue") and stack (class "Stack") with the corresponding methods is also implemented.

DATABASE WITH DYNAMIC GRID SUBFORM FOR DOCUMENTS

The database contains a subform with a dynamic table form for their use (insertion) in documents. The subform contains custom event handlers when adding a row, etc. Link to download this Lotus Domino database: Lotus.SampleDB.Dynamic_Forms.En.zip.

DEVELOPER'S NOTES

The library and dynamic grid published here were debugged and tested on Lotus Domino versions 5-7. At the moment, I have no opportunity to test them on any version of this platform. This functional set is published for general use as is.