org.apache.drill.exec.expr.fn.impl

Class StringFunctionUtil

java.lang.Object

org.apache.drill.exec.expr.fn.impl.StringFunctionUtil

public class StringFunctionUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
StringFunctionUtil()

Method Summary

Modifier and Type	Method and Description
static int	getUTF8CharLength(ByteBuf buffer, int start, int end)
static int	getUTF8CharPosition(ByteBuf buffer, int start, int end, int charLength)
static int	stringLeftMatchUTF8(ByteBuf str, int strStart, int strEnd, ByteBuf substr, int subStart, int subEnd)
static int	utf8CharLen(byte currentByte)
static int	utf8CharLen(ByteBuf buffer, int idx)

Methods inherited from class java.lang.Object

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

Constructor Detail

StringFunctionUtil

public StringFunctionUtil()

Method Detail

getUTF8CharLength

public static int getUTF8CharLength(ByteBuf buffer,
                                    int start,
                                    int end)

getUTF8CharPosition

public static int getUTF8CharPosition(ByteBuf buffer,
                                      int start,
                                      int end,
                                      int charLength)

stringLeftMatchUTF8

public static int stringLeftMatchUTF8(ByteBuf str,
                                      int strStart,
                                      int strEnd,
                                      ByteBuf substr,
                                      int subStart,
                                      int subEnd)

utf8CharLen

public static int utf8CharLen(ByteBuf buffer,
                              int idx)

utf8CharLen

public static int utf8CharLen(byte currentByte)