Options Class

The Options object enables you to specify how the dtSearch engine will process text being indexed or searched.

public class Options;

File

Options.java

Remarks

After changing settings, call save() to apply your changes, or they will have no effect.

See "Options" in the Overviews section for a description of the purpose of each option setting.

When an Options object is first created, it is populated with the settings currently in effect. After you change one or

more settings, call Save() to apply the changes. The new settings will apply to the currently-executing thread and to

any newly-created threads. It will not affect other threads that are already running.

Options cannot be changed within a callback function such as DataSource.getNextDoc. This is because

dtSearch assumes that the options in effect for a thread at the start of a job will remain in effect until that job completes.

Group

Classes

Methods

Method	Description
get	Get option settings currently in effect
getStemmingRulesFile	Stemming rules for stemming searches (default: "stemming.dat")
getTextFlags	TextFlags value with text-processing options
getUnicodeFilterRanges	Indicates Unicode ranges that are of interest when filtering.
save	Applies changes to option settings
setAlphabetFile	Name of dtSearch alphabet file to use when parsing text into words.
setBinaryFiles	BinaryFilesSettings value specifying the treatment of files that do not appear to be documents.
setBinaryFilterTextChars	Define characters considered to be text if Options.setBinaryFiles is set to dtsoFilterBinary
setBooleanConnectors	Use to replace the default connectors used in search requests.
setFieldFlags	FieldFlags value that controls indexing of metadata
setFileTypeTableFile	Name of the file containing a table of filename patterns for file formats that dtSearch cannot detect automatically, such as older versions of WordStar
setFuzzyChar	Character that enables fuzzy searching for a search term (default "%")
setHomeDir	Directory where the dtSearch Engine and support files are located.
setHyphens	HyphenSettings value controlling the treatment of hyphens in text.
setIndexNumbers	If false, any word that begins with a digit will not be indexed.
setLzwEnableCode	Obsolete
setMacroChar	Character that indicates that a search term is a macro (default "@")
setMatchDigitChar	Wildcard character that matches a single digit (default: none)
setMaxStoredFieldSize	Maximum size of a single stored field.
setMaxWordLength	Words longer than the maxWordLength will be truncated when indexing.
setMaxWordsToRetrieve	Maximum number of words that can be matched in a search.
setNoiseWordFile	List of noise words to skip during indexing (default: "noise.dat")
setPhonicChar	Character that enables phonic searching for a search term (default "#")
setPrivateDir	A directory that the dtSearch Engine can use to store temporary files.
setSegmentationRulesFile	File segmentation rules, used to split up long text files into logical subdocuments during indexing.
setStemmingChar	Character that enables stemming for a search term.
setStemmingRulesFile	Stemming rules for stemming searches (default: "stemming.dat")
setSynonymChar	Character that enables synonym searching for a search term.
setTextFieldsFile	Name of the file containing rules for extraction of field data from text files based on markers in the next
setTextFlags	TextFlags value specifying options for text processing during indexing.
setTitleSize	By default, the dtSearch Engine collects the first 80 characters of text from a file for the title associated with each document.
setUnicodeFilterBlockSize	Specifies how each input file is divided into blocks before being filtered.
setUnicodeFilterFlags	Flags controlling the behavior of the Unicode Filtering algorithm.
setUnicodeFilterRanges	Specifies the Unicode subranges that the filtering algorithm should look for.
setUpdateFiles	Set to true to force all configuration files to be re-read when save() is called.
setUserThesaurusFile	User-defined synonym sets.
setWeightChar	Character used to indicate term weighting (example: apple:5)
setXmlIgnoreTags	Comma-separated list of tags to ignore when indexing XML

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