createFreeTextIndex: Create a free-text index

Description Usage Arguments Examples

View source: R/index_funcs.R

Description

Create or modify a freetext-index. I suggest reading the official documentation at http://franz.com/agraph/support/documentation/current/text-index.html

To modify, use same parameters as the function to create a free text index. However, using this allows you to modify an existing index by naming the indexName you want to work on

Usage

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createFreeTextIndex(repository, indexName, predicate, indexLiterals = NULL,
  indexResources = FALSE, indexFields = NULL, minimumWordSize = NULL,
  stopWords = NULL, wordFilter = NULL, innerChars = NULL,
  borderChars = NULL, tokenizer = NULL, reIndex = NULL)

modifyFreeTextIndex(repository, indexName, predicate = NULL,
  indexLiterals = NULL, indexResources = FALSE, indexFields = NULL,
  minimumWordSize = NULL, stopWords = NULL, wordFilter = NULL,
  innerChars = NULL, borderChars = NULL, tokenizer = NULL,
  reIndex = NULL)

Arguments

repository

Object of type repository specifying server details and repository to work on.

indexName

Name of index of interest

predicate

Can be a list. Indicates the predicates that should be indexed. When not given, all predicates are indexed.

indexLiterals

A boolean (defaults to true) that determines whether literal are indexed.

indexResources

Can be given the values true, false, or short. Default is false. short means to index only the part of the resource after the last # or / character.

indexFields

...

minimumWordSize

...

stopWords

Can be a list. Determines the set of stop-words, words that are not indexed. Defaults to a small set of common English words. To override this default and specify that no stop-words should be used, pass this parameter once, with an empty list().

wordFilter

Can be a list. Specify a word filter, which is an operation applied to words before they are indexed and before they are searched for. Used to 'normalize' words.

innerChars

...

borderChars

...

tokenizer

...

reIndex

Defaults to TRUE. Should old triples be re-indexed

Examples

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## Not run: 
service = service("localhost","user","password")
rep = repository(catalog(service,"root"),"test")
createFreeTextIndex(rep,indexName = 'index',
predicate = '<p>',stopWords = list('and','it'))

## End(Not run)

baasman/allegRo documentation built on June 4, 2017, 12:11 a.m.