nl.inl.blacklab.search.textpattern

Class TextPatternWildcard

java.lang.Object

nl.inl.blacklab.search.textpattern.TextPattern

nl.inl.blacklab.search.textpattern.TextPatternTerm

nl.inl.blacklab.search.textpattern.TextPatternWildcard

public class TextPatternWildcard
extends TextPatternTerm

A textpattern matching a simple wildcard expression. Internally, the wildcard expression is translated into a regular expression.

Field Summary

Fields inherited from class nl.inl.blacklab.search.textpattern.TextPatternTerm

value

Fields inherited from class nl.inl.blacklab.search.textpattern.TextPattern

MAX_UNLIMITED

Constructor Summary

Constructors

Constructor and Description
TextPatternWildcard(String value)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
int	hashCode()
TextPattern	rewrite() Rewrite to the "best" TextPattern class for the given wildcard query.
String	toString()
BLSpanQuery	translate(QueryExecutionContext context) Translate this TextPattern into a BLSpanQuery.

Methods inherited from class nl.inl.blacklab.search.textpattern.TextPatternTerm

getTerm, getValue

Methods inherited from class nl.inl.blacklab.search.textpattern.TextPattern

clausesToString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TextPatternWildcard

public TextPatternWildcard(String value)

Method Detail

translate

public BLSpanQuery translate(QueryExecutionContext context)
                      throws InvalidQuery

Description copied from class: TextPattern

Translate this TextPattern into a BLSpanQuery.

Overrides:

translate in class TextPatternTerm

Parameters:

context - query execution context to use

Returns:

result of the translation

Throws:

RegexpTooLarge - if a regular expression was too large

InvalidQuery - if something else was wrong about the query (e.g. error in regex expression)

rewrite

public TextPattern rewrite()

Rewrite to the "best" TextPattern class for the given wildcard query. Tries to make a TextPatternTerm or TextPatternPrefix because those tend to be faster than TextPatternWildcard in Lucene.

Returns:

the TextPattern

equals

public boolean equals(Object obj)

Overrides:

equals in class TextPatternTerm

hashCode

public int hashCode()

Overrides:

hashCode in class TextPatternTerm

toString

public String toString()

Overrides:

toString in class TextPatternTerm