Class ClientParser

java.lang.Object

org.mariadb.jdbc.util.ClientParser

All Implemented Interfaces:

PrepareResult

public final class ClientParser
extends Object
implements PrepareResult

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static enum	ClientParser.LexState

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	isInsert
private final boolean	isInsertDuplicate
private final boolean	isMultiQuery
private final int	paramCount
private final List<Integer>	paramPositions
private final byte[]	query
private final String	sql
private final List<Integer>	valuesBracketPositions

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ClientParser(String sql, byte[] query, List<Integer> paramPositions, List<Integer> valuesBracketPositions, boolean isInsert, boolean isInsertDuplicate, boolean isMultiQuery)

Method Summary

Modifier and Type	Method	Description
private static boolean	equalsIgnoreCase(byte b, byte lower)	Fast case-insensitive byte comparison for ASCII letters.
int	getParamCount()
List<Integer>	getParamPositions()
byte[]	getQuery()
String	getSql()
List<Integer>	getValuesBracketPositions()
private static boolean	isDelimiter(byte b)	Fast check if byte is a delimiter character: ();>invalid input: '<'=-+, Avoids String.indexOf() overhead
boolean	isInsert()
boolean	isInsertDuplicate()
boolean	isMultiQuery()
private static boolean	isWhitespace(byte b)	Fast check if byte is whitespace: space, \n, \r, \t
static ClientParser	parameterParts(String queryString, boolean noBackslashEscapes)	For a given queryString, get query - a byte array containing the UTF8 representation of that string paramPositions - the byte positions of any '?' positional parameters in query and set the following flags: isInsert - queryString contains 'INSERT' outside of quotes, without one of the characters '();>invalid input: '<'=-+,' immediately preceding or following isInsertDuplicate - isInsert invalid input: '&'invalid input: '&' queryString contains 'DUPLICATE' outside of quotes, without one of the characters '();>invalid input: '<'=-+,' immediately preceding or following isMulti - queryString contains text after the last ';' outside of quotes
static ClientParser	rewritableParts(String queryString, boolean noBackslashEscapes)	For a given queryString, get the fields and flags from parameterParts(String, boolean), and valuesBracketPositions - a two-element list containing the positions of the opening and closing parenthesis of the VALUES block

Methods inherited from class Object

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

Field Details

sql

private final String sql

query

private final byte[] query

paramPositions

private final List<Integer> paramPositions

valuesBracketPositions

private final List<Integer> valuesBracketPositions

paramCount

private final int paramCount

isInsert

private final boolean isInsert

isInsertDuplicate

private final boolean isInsertDuplicate

isMultiQuery

private final boolean isMultiQuery

Constructor Details

ClientParser

private ClientParser(String sql,
 byte[] query,
 List<Integer> paramPositions,
 List<Integer> valuesBracketPositions,
 boolean isInsert,
 boolean isInsertDuplicate,
 boolean isMultiQuery)

Method Details

parameterParts

public static ClientParser parameterParts(String queryString,
 boolean noBackslashEscapes)

For a given queryString, get

• query - a byte array containing the UTF8 representation of that string
• paramPositions - the byte positions of any '?' positional parameters in query

and set the following flags:

• isInsert - queryString contains 'INSERT' outside of quotes, without one of the characters '();>invalid input: '<'=-+,' immediately preceding or following
• isInsertDuplicate - isInsert invalid input: '&'invalid input: '&' queryString contains 'DUPLICATE' outside of quotes, without one of the characters '();>invalid input: '<'=-+,' immediately preceding or following
• isMulti - queryString contains text after the last ';' outside of quotes

Parameters:

queryString - query

noBackslashEscapes - escape mode

Returns:

ClientParser

rewritableParts

public static ClientParser rewritableParts(String queryString,
 boolean noBackslashEscapes)

For a given queryString, get the fields and flags from parameterParts(String, boolean), and

• valuesBracketPositions - a two-element list containing the positions of the opening and closing parenthesis of the VALUES block

Parameters:

queryString - query

noBackslashEscapes - escape mode

Returns:

ClientParser

getSql

public String getSql()

Specified by:

getSql in interface PrepareResult

getQuery

public byte[] getQuery()

getParamPositions

public List<Integer> getParamPositions()

getValuesBracketPositions

public List<Integer> getValuesBracketPositions()

getParamCount

public int getParamCount()

Specified by:

getParamCount in interface PrepareResult

isInsert

public boolean isInsert()

isInsertDuplicate

public boolean isInsertDuplicate()

isMultiQuery

public boolean isMultiQuery()

isDelimiter

private static boolean isDelimiter(byte b)

Fast check if byte is a delimiter character: ();>invalid input: '<'=-+, Avoids String.indexOf() overhead

isWhitespace

private static boolean isWhitespace(byte b)

Fast check if byte is whitespace: space, \n, \r, \t

equalsIgnoreCase

private static boolean equalsIgnoreCase(byte b,
 byte lower)

Fast case-insensitive byte comparison for ASCII letters. Uses bitwise OR to convert to lowercase before comparison.