org.apache.flink.table.runtime.functions

Class SqlLikeUtils

java.lang.Object

org.apache.flink.table.runtime.functions.SqlLikeUtils

public class SqlLikeUtils
extends Object

Utilities for converting SQL LIKE and SIMILAR operators to regular expressions.

Note: THIS IS COPIED FROM CALCITE to EXPOSE SOME PRIVATE METHOD

Method Summary

Modifier and Type	Method and Description
static RuntimeException	invalidEscapeCharacter(String s)
static RuntimeException	invalidEscapeSequence(String s, int i)
static String	sqlToRegexLike(String sqlPattern, CharSequence escapeStr) Translates a SQL LIKE pattern to Java regex pattern, with optional escape string.

Methods inherited from class java.lang.Object

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

Method Detail

sqlToRegexLike

public static String sqlToRegexLike(String sqlPattern,
                                    CharSequence escapeStr)

Translates a SQL LIKE pattern to Java regex pattern, with optional escape string.

invalidEscapeCharacter

public static RuntimeException invalidEscapeCharacter(String s)

invalidEscapeSequence

public static RuntimeException invalidEscapeSequence(String s,
                                                     int i)