org.crosswire.jsword.book.search.lucene
Class QueryBuilder

java.lang.Object
  org.crosswire.jsword.book.search.lucene.QueryBuilder

public final class QueryBuilder
extends Object

A query can have a optional range specifier and an optional blur specifier. The range specifier can be +[range], -[range] or just [range]. This must stand at the beginning of the query and may be surrounded by whitespace. The blur specifier is either ~ or ~n, where ~ means adjacent verses, but ~n means to blur by n verses.

Author:

DM Smith [dmsmith555 at yahoo dot com]

See Also:

for license details. The copyright to this program is held by it's authors.

Field Summary

private static Pattern	BLUR_PATTERN The pattern of a blur.
private static Pattern	RANGE_PATTERN The pattern of a range.

Constructor Summary

private

QueryBuilder() Prevent Instansiation

Method Summary

static List

tokenize(String aSearch) Tokenize a query into a list of Tokens.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RANGE_PATTERN

private static final Pattern RANGE_PATTERN

The pattern of a range. This is anything that is contained between a leading [] (but not containing a [ or ]), with a + or - optional prefix, perhaps surrounded by whitespace.

BLUR_PATTERN

private static final Pattern BLUR_PATTERN

The pattern of a blur. A '~', optionally followed by a number, representing the number of verses.

Constructor Detail

QueryBuilder

private QueryBuilder()

Prevent Instansiation

Method Detail

tokenize

public static List tokenize(String aSearch)

Tokenize a query into a list of Tokens.

Parameters:

aSearch - The text to parse

Returns:

A List of selected Tokens