Class RegularExpressionConverter

java.lang.Object

org.datanucleus.util.RegularExpressionConverter

public class RegularExpressionConverter
extends Object

Converter for a "matches" regular expression replacing the Java regular expression constructs with datastore-specific constructs.

Field Summary

Fields

Modifier and Type	Field	Description
private final char	anyChar
private final char	escapeChar
private final char	zeroOrMoreChar

Constructor Summary

Constructors

Constructor	Description
RegularExpressionConverter(char zeroOrMoreChar, char anyChar, char escapeChar)	Constructor.

Method Summary

Modifier and Type	Method	Description
String	convert(String input)	Convert a regular expression from Java to use the specified constructs.

Methods inherited from class Object

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

Field Details

zeroOrMoreChar

private final char zeroOrMoreChar

anyChar

private final char anyChar

escapeChar

private final char escapeChar

Constructor Details

RegularExpressionConverter

public RegularExpressionConverter(char zeroOrMoreChar,
 char anyChar,
 char escapeChar)

Constructor.

Parameters:

zeroOrMoreChar - The pattern string for representing zero or more characters. Most of databases will use the percent sign character.

anyChar - The pattern string for representing one character. Most of databases will use the underscore character.

escapeChar - The pattern string for representing to escape zeroOrMoreChar or anyChar. Most of databases will use the backslash \ character.

Method Details

convert

public String convert(String input)

Convert a regular expression from Java to use the specified constructs.

Parameters:

input - the pattern to parse.

Returns:

the converted pattern