com.mysql.cj

Class ParseInfo

java.lang.Object

com.mysql.cj.ParseInfo

public class ParseInfo
extends java.lang.Object

Represents the "parsed" state of a prepared query, with the statement broken up into its static and dynamic (where parameters are bound) parts.

Constructor Summary

Constructors

Constructor and Description
ParseInfo(java.lang.String sql, Session session, java.lang.String encoding)
ParseInfo(java.lang.String sql, Session session, java.lang.String encoding, boolean buildRewriteInfo)

Method Summary

Modifier and Type	Method and Description
protected static boolean	canRewrite(java.lang.String sql, boolean isOnDuplicateKeyUpdate, int locationOfOnDuplicateKeyUpdate, int statementStartPos)
boolean	canRewriteAsMultiValueInsertAtSqlLevel()
boolean	containsOnDuplicateKeyUpdateInSQL()
static char	firstCharOfStatementUc(java.lang.String sql, boolean noBackslashEscapes)
char	getFirstStmtChar()
int	getLocationOfOnDuplicateKeyUpdate()
int	getNumberOfQueries()
static int	getOnDuplicateKeyLocation(java.lang.String sql, boolean dontCheckOnDuplicateKeyUpdateInSQL, boolean rewriteBatchedStatements, boolean noBackslashEscapes)
ParseInfo	getParseInfoForBatch(int numBatch) Returns a ParseInfo for a multi-value INSERT for a batch of size numBatch (without parsing!).
QueryReturnType	getQueryReturnType()
static QueryReturnType	getQueryReturnType(java.lang.String sql, boolean noBackslashEscapes) Returns the type of return that can be expected from executing the given query.
java.lang.String	getSqlForBatch() Used for filling in the SQL for getPreparedSql() - for debugging
java.lang.String	getSqlForBatch(int numBatch) Returns a preparable SQL string for the number of batched parameters; used by server-side prepared statements when re-writing batch INSERTs.
byte[][]	getStaticSql()
java.lang.String	getValuesClause()
static int	indexOfStartOfStatement(java.lang.String sql, boolean noBackslashEscapes)
static int	indexOfStatementKeyword(java.lang.String sql, boolean noBackslashEscapes)
boolean	isLoadData()
static boolean	isReadOnlySafeQuery(java.lang.String sql, boolean noBackslashEscapes) Checks whether the given query is safe to run in a read-only session.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParseInfo

public ParseInfo(java.lang.String sql,
                 Session session,
                 java.lang.String encoding)

ParseInfo

public ParseInfo(java.lang.String sql,
                 Session session,
                 java.lang.String encoding,
                 boolean buildRewriteInfo)

Method Detail

getNumberOfQueries

public int getNumberOfQueries()

getStaticSql

public byte[][] getStaticSql()

getValuesClause

public java.lang.String getValuesClause()

getLocationOfOnDuplicateKeyUpdate

public int getLocationOfOnDuplicateKeyUpdate()

getQueryReturnType

public QueryReturnType getQueryReturnType()

canRewriteAsMultiValueInsertAtSqlLevel

public boolean canRewriteAsMultiValueInsertAtSqlLevel()

containsOnDuplicateKeyUpdateInSQL

public boolean containsOnDuplicateKeyUpdateInSQL()

getParseInfoForBatch

public ParseInfo getParseInfoForBatch(int numBatch)

Returns a ParseInfo for a multi-value INSERT for a batch of size numBatch (without parsing!).

Parameters:

numBatch - number of batched parameters

Returns:

ParseInfo

getSqlForBatch

public java.lang.String getSqlForBatch(int numBatch)
                                throws java.io.UnsupportedEncodingException

Returns a preparable SQL string for the number of batched parameters; used by server-side prepared statements when re-writing batch INSERTs.

Parameters:

numBatch - number of batched parameters

Returns:

SQL string

Throws:

java.io.UnsupportedEncodingException - if an error occurs

getSqlForBatch

public java.lang.String getSqlForBatch()
                                throws java.io.UnsupportedEncodingException

Used for filling in the SQL for getPreparedSql() - for debugging

Returns:

sql string

Throws:

java.io.UnsupportedEncodingException - if an error occurs

isLoadData

public boolean isLoadData()

getFirstStmtChar

public char getFirstStmtChar()

indexOfStartOfStatement

public static int indexOfStartOfStatement(java.lang.String sql,
                                          boolean noBackslashEscapes)

indexOfStatementKeyword

public static int indexOfStatementKeyword(java.lang.String sql,
                                          boolean noBackslashEscapes)

firstCharOfStatementUc

public static char firstCharOfStatementUc(java.lang.String sql,
                                          boolean noBackslashEscapes)

isReadOnlySafeQuery

public static boolean isReadOnlySafeQuery(java.lang.String sql,
                                          boolean noBackslashEscapes)

Checks whether the given query is safe to run in a read-only session. In case of doubt it is assumed to be safe.

Parameters:

sql - the SQL to check

noBackslashEscapes - whether backslash escapes are disabled or not

Returns:

true if the query is read-only safe, false otherwise.

getQueryReturnType

public static QueryReturnType getQueryReturnType(java.lang.String sql,
                                                 boolean noBackslashEscapes)

Returns the type of return that can be expected from executing the given query.

Parameters:

sql - the SQL to check

noBackslashEscapes - whether backslash escapes are disabled or not

Returns:

The return type that can be expected from the given query, one of the elements of QueryReturnType.

getOnDuplicateKeyLocation

public static int getOnDuplicateKeyLocation(java.lang.String sql,
                                            boolean dontCheckOnDuplicateKeyUpdateInSQL,
                                            boolean rewriteBatchedStatements,
                                            boolean noBackslashEscapes)

canRewrite

protected static boolean canRewrite(java.lang.String sql,
                                    boolean isOnDuplicateKeyUpdate,
                                    int locationOfOnDuplicateKeyUpdate,
                                    int statementStartPos)