Package org.mariadb.jdbc

Class MariaDbStatement

java.lang.Object
org.mariadb.jdbc.MariaDbStatement
All Implemented Interfaces:
AutoCloseable, Cloneable, Statement, Wrapper
Direct Known Subclasses:
BasePrepareStatement
public class MariaDbStatement extends Object implements Statement, Cloneable

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private List<String>
    batchQueries
     
    protected final boolean
    canUseServerTimeout
     
    protected boolean
    closed
     
    protected MariaDbConnection
    connection
    the Connection object.
    protected boolean
    executing
     
    protected int
    fetchSize
     
    private boolean
    isTimedout
     
    protected final ReentrantLock
    lock
     
    private static final Logger
    logger
     
    private int
    maxFieldSize
     
    protected long
    maxRows
     
    private boolean
    mustCloseOnCompletion
     
    protected final Options
    options
     
    protected Protocol
    protocol
    the protocol used to talk to the server.
    protected int
    queryTimeout
     
    protected Results
    results
     
    protected final int
    resultSetConcurrency
     
    protected final int
    resultSetScrollType
     
    private static final ScheduledExecutorService
    timeoutScheduler
     
    private Future<?>
    timerTaskFuture
     
    private boolean
    warningsCleared
     

    Fields inherited from interface java.sql.Statement

    CLOSE_ALL_RESULTS, CLOSE_CURRENT_RESULT, EXECUTE_FAILED, KEEP_CURRENT_RESULT, NO_GENERATED_KEYS, RETURN_GENERATED_KEYS, SUCCESS_NO_INFO

  • Constructor Summary

    Constructors
    Constructor
    Description
    MariaDbStatement(MariaDbConnection connection, int resultSetScrollType, int resultSetConcurrency)
    Creates a new Statement.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addBatch(String sql)
    Adds the given SQL command to the current list of commands for this Statement object.
    void
    cancel()
    Cancels this Statement object if both the DBMS and driver support aborting an SQL statement.
    protected void
    checkClose()
    Check if statement is closed, and throw exception if so.
    void
    checkCloseOnCompletion(ResultSet resultSet)
    Check that close on completion is asked, and close if so.
    void
    clearBatch()
    Empties this Statement object's current list of SQL send.
    void
    clearWarnings()
    Clears all the warnings reported on this Statement object.
    MariaDbStatement
    clone(MariaDbConnection connection)
    Clone statement.
    void
    close()
    Releases this Statement object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.
    void
    closeOnCompletion()
     
    boolean
    execute(String sql)
    executes a query.
    boolean
    execute(String sql, int autoGeneratedKeys)
    Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval.
    boolean
    execute(String sql, int[] columnIndexes)
    Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
    boolean
    execute(String sql, String[] columnNames)
    Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
    int[]
    executeBatch()
    Execute statements.
    protected void
    executeBatchEpilogue()
     
    protected BatchUpdateException
    executeBatchExceptionEpilogue(SQLException initialSqle, int size)
     
    protected void
    executeEpilogue()
     
    protected SQLException
    executeExceptionEpilogue(SQLException sqle)
    Reset timeout after query, re-throw SQL exception.
    private boolean
    executeInternal(String sql, int fetchSize, int autoGeneratedKeys)
    Executes a query.
    long[]
    executeLargeBatch()
    Execute batch, like executeBatch(), with returning results with long[].
    long
    executeLargeUpdate(String sql)
    Executes the given SQL statement, which may be an INSERT, UPDATE, or DELETE statement or an SQL statement that returns nothing, such as an SQL DDL statement.
    long
    executeLargeUpdate(String sql, int autoGeneratedKeys)
    Identical to executeLargeUpdate(String sql), with a flag that indicate that autoGeneratedKeys (primary key fields with "auto_increment") generated id's must be retrieved.
    long
    executeLargeUpdate(String sql, int[] columnIndexes)
    Identical to executeLargeUpdate(String sql, int autoGeneratedKeys) with autoGeneratedKeys = Statement.RETURN_GENERATED_KEYS set.
    long
    executeLargeUpdate(String sql, String[] columnNames)
    Identical to executeLargeUpdate(String sql, int autoGeneratedKeys) with autoGeneratedKeys = Statement.RETURN_GENERATED_KEYS set.
    ResultSet
    executeQuery(String sql)
    executes a select query.
    protected void
    executeQueryPrologue(boolean isBatch)
    Command prolog.
    int
    executeUpdate(String sql)
    Executes an update.
    int
    executeUpdate(String sql, int autoGeneratedKeys)
    Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.
    int
    executeUpdate(String sql, int[] columnIndexes)
    Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
    int
    executeUpdate(String sql, String[] columnNames)
    Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
    MariaDbConnection
    getConnection()
    Gets the connection that created this statement.
    int
    getFetchDirection()
    Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object.
    int
    getFetchSize()
    Retrieves the number of result set rows that is the default fetch size for ResultSet objects generated from this Statement object.
    ResultSet
    getGeneratedKeys()
    Retrieves any auto-generated keys created as a result of executing this Statement object.
    long
    getLargeMaxRows()
    Retrieves the maximum number of rows that a ResultSet object produced by this Statement object can contain.
    long
    getLargeUpdateCount()
    Retrieves the current result as an update count; if the result is a ResultSet object or there are no more results, -1 is returned.
    int
    getMaxFieldSize()
    Retrieves the maximum number of bytes that can be returned for character and binary column values in a ResultSet object produced by this Statement object.
    int
    getMaxRows()
    Retrieves the maximum number of rows that a ResultSet object produced by this Statement object can contain.
    boolean
    getMoreResults()
    Moves to this Statement object's next result, returns true if it is a ResultSet object, and implicitly closes any current ResultSet object(s) obtained with the method getResultSet.
    boolean
    getMoreResults(int current)
    Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.
    int
    getQueryTimeout()
    Retrieves the number of seconds the driver will wait for a Statement object to execute.
    ResultSet
    getResultSet()
    Retrieves the current result as a ResultSet object.
    int
    getResultSetConcurrency()
    Retrieves the result set concurrency for ResultSet objects generated by this Statement object.
    int
    getResultSetHoldability()
    Retrieves the result set holdability for ResultSet objects generated by this Statement object.
    int
    getResultSetType()
    Retrieves the result set type for ResultSet objects generated by this Statement object.
    long
    getServerThreadId()
    Permit to retrieve current connection thread id, or -1 if unknown.
    private String
    getTimeoutSql(String sql)
     
    int
    getUpdateCount()
    Retrieves the current result as an update count; if the result is a ResultSet object or there are no more results, -1 is returned.
    SQLWarning
    getWarnings()
    Retrieves the first warning reported by calls on this Statement object.
    private SQLException
    handleFailoverAndTimeout(SQLException sqle)
     
    private void
    internalBatchExecution(int size)
    Internal batch execution.
    boolean
    isClosed()
    Retrieves whether this Statement object has been closed.
    boolean
    isCloseOnCompletion()
     
    boolean
    isPoolable()
    Returns a value indicating whether the Statement is poolable or not.
    boolean
    isWrapperFor(Class<?> interfaceOrWrapper)
    Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
    void
    setCursorName(String name)
    Sets the SQL cursor name to the given String, which will be used by subsequent Statement object execute methods.
    void
    setEscapeProcessing(boolean enable)
    Sets escape processing on or off.
    void
    setFetchDirection(int direction)
    Gives the driver a hint as to the direction in which rows will be processed in ResultSet objects created using this Statement object.
    void
    setFetchSize(int rows)
    Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for ResultSet objects generated by this Statement.
    void
    setLargeMaxRows(long max)
    Sets the limit for the maximum number of rows that any ResultSet object generated by this Statement object can contain to the given number.
    void
    setLocalInfileInputStream(InputStream inputStream)
    Sets the inputStream that will be used for the next execute that uses "LOAD DATA LOCAL INFILE".
    void
    setMaxFieldSize(int max)
    Sets the limit for the maximum number of bytes that can be returned for character and binary column values in a ResultSet object produced by this Statement object.
    void
    setMaxRows(int max)
    Sets the limit for the maximum number of rows that any ResultSet object generated by this Statement object can contain to the given number.
    void
    setPoolable(boolean poolable)
    Requests that a Statement be pooled or not pooled.
    void
    setQueryTimeout(int seconds)
    Sets the number of seconds the driver will wait for a Statement object to execute to the given number of seconds.
    protected void
    setTimerTask(boolean isBatch)
     
    protected void
    skipMoreResults()
     
    private void
    stopTimeoutTask()
     
    boolean
    testExecute(String sql, Charset charset)
    ! This method is for test only ! This permit sending query using specific charset.
    <T> T
    unwrap(Class<T> iface)
    Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface java.sql.Statement

    enquoteIdentifier, enquoteLiteral, enquoteNCharLiteral, isSimpleIdentifier

  • Field Details

    • timeoutScheduler

      private static final ScheduledExecutorService timeoutScheduler

    • logger

      private static final Logger logger

    • lock

      protected final ReentrantLock lock

    • resultSetScrollType

      protected final int resultSetScrollType

    • resultSetConcurrency

      protected final int resultSetConcurrency

    • options

      protected final Options options

    • canUseServerTimeout

      protected final boolean canUseServerTimeout

    • protocol

      protected Protocol protocol
      the protocol used to talk to the server.

    • connection

      protected MariaDbConnection connection
      the Connection object.

    • closed

      protected volatile boolean closed

    • queryTimeout

      protected int queryTimeout

    • maxRows

      protected long maxRows

    • results

      protected Results results

    • fetchSize

      protected int fetchSize

    • executing

      protected volatile boolean executing

    • warningsCleared

      private boolean warningsCleared

    • mustCloseOnCompletion

      private boolean mustCloseOnCompletion

    • batchQueries

      private List<String> batchQueries

    • timerTaskFuture

      private Future<?> timerTaskFuture

    • isTimedout

      private boolean isTimedout

    • maxFieldSize

      private int maxFieldSize

  • Constructor Details

    • MariaDbStatement

      public MariaDbStatement(MariaDbConnection connection, int resultSetScrollType, int resultSetConcurrency)
      Creates a new Statement.
      Parameters:
      connection - the connection to return in getConnection.
      resultSetScrollType - one of the following ResultSet constants: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
      resultSetConcurrency - a concurrency type; one of ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE

  • Method Details

    • clone

      public MariaDbStatement clone(MariaDbConnection connection) throws CloneNotSupportedException
      Clone statement.
      Parameters:
      connection - connection
      Returns:
      Clone statement.
      Throws:
      CloneNotSupportedException - if any error occur.

    • setTimerTask

      protected void setTimerTask(boolean isBatch)

    • executeQueryPrologue

      protected void executeQueryPrologue(boolean isBatch) throws SQLException
      Command prolog.
      1. clear previous query state
      2. launch timeout timer if needed
      Parameters:
      isBatch - is batch
      Throws:
      SQLException - if statement is closed

    • stopTimeoutTask

      private void stopTimeoutTask()

    • executeExceptionEpilogue

      protected SQLException executeExceptionEpilogue(SQLException sqle)
      Reset timeout after query, re-throw SQL exception.
      Parameters:
      sqle - current exception
      Returns:
      SQLException exception with new message in case of timer timeout.

    • executeEpilogue

      protected void executeEpilogue()

    • executeBatchEpilogue

      protected void executeBatchEpilogue()

    • handleFailoverAndTimeout

      private SQLException handleFailoverAndTimeout(SQLException sqle)

    • executeBatchExceptionEpilogue

      protected BatchUpdateException executeBatchExceptionEpilogue(SQLException initialSqle, int size)

    • executeInternal

      private boolean executeInternal(String sql, int fetchSize, int autoGeneratedKeys) throws SQLException
      Executes a query.
      Parameters:
      sql - the query
      fetchSize - fetch size
      autoGeneratedKeys - a flag indicating whether auto-generated keys should be returned; one of Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS
      Returns:
      true if there was a result set, false otherwise.
      Throws:
      SQLException - the error description

    • getTimeoutSql

      private String getTimeoutSql(String sql)

    • testExecute

      public boolean testExecute(String sql, Charset charset) throws SQLException
      ! This method is for test only ! This permit sending query using specific charset.
      Parameters:
      sql - sql
      charset - charset
      Returns:
      boolean if execution went well
      Throws:
      SQLException - if any exception occur

    • execute

      public boolean execute(String sql) throws SQLException
      executes a query.
      Specified by:
      execute in interface Statement
      Parameters:
      sql - the query
      Returns:
      true if there was a result set, false otherwise.
      Throws:
      SQLException - if the query could not be sent to server

    • execute

      public boolean execute(String sql, int autoGeneratedKeys) throws SQLException

      Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval. The driver will ignore this signal if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).

      In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

      The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getInternalMoreResults to move to any subsequent result(s).
      Specified by:
      execute in interface Statement
      Parameters:
      sql - any SQL statement
      autoGeneratedKeys - a constant indicating whether auto-generated keys should be made available for retrieval using the methodgetGeneratedKeys; one of the following constants: Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS
      Returns:
      true if the first result is a ResultSet object; false if it is an update count or there are no results
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the second parameter supplied to this method is not Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS.
      See Also:

    • execute

      public boolean execute(String sql, int[] columnIndexes) throws SQLException
      Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the indexes of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).

      Under some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

      The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getInternalMoreResults to move to any subsequent result(s).
      Specified by:
      execute in interface Statement
      Parameters:
      sql - any SQL statement
      columnIndexes - an array of the indexes of the columns in the inserted row that should be made available for retrieval by a call to the method getGeneratedKeys
      Returns:
      true if the first result is a ResultSet object; false if it is an update count or there are no results
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the elements in the int array passed to this method are not valid column indexes
      See Also:

    • execute

      public boolean execute(String sql, String[] columnNames) throws SQLException

      Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the names of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).

      In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

      The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getInternalMoreResults to move to any subsequent result(s).

      Specified by:
      execute in interface Statement
      Parameters:
      sql - any SQL statement
      columnNames - an array of the names of the columns in the inserted row that should be made available for retrieval by a call to the method getGeneratedKeys
      Returns:
      true if the next result is a ResultSet object; false if it is an update count or there are no more results
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the elements of the String array passed to this method are not valid column names
      See Also:

    • executeQuery

      public ResultSet executeQuery(String sql) throws SQLException
      executes a select query.
      Specified by:
      executeQuery in interface Statement
      Parameters:
      sql - the query to send to the server
      Returns:
      a result set
      Throws:
      SQLException - if something went wrong

    • executeUpdate

      public int executeUpdate(String sql) throws SQLException
      Executes an update.
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - the update query.
      Returns:
      update count
      Throws:
      SQLException - if the query could not be sent to server.

    • executeUpdate

      public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException
      Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval. The driver will ignore the flag if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL Data Manipulation Language (DML) statement, such as INSERT, UPDATE or DELETE; or an SQL statement that returns nothing, such as a DDL statement.
      autoGeneratedKeys - a flag indicating whether auto-generated keys should be made available for retrieval; one of the following constants: Statement.RETURN_GENERATED_KEYS Statement.NO_GENERATED_KEYS
      Returns:
      either (1) the row count for SQL Data Manipulation Language (DML) statements or (2) 0 for SQL statements that return nothing
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement, the given SQL statement returns a ResultSet object, or the given constant is not one of those allowed

    • executeUpdate

      public int executeUpdate(String sql, int[] columnIndexes) throws SQLException
      Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the indexes of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL Data Manipulation Language (DML) statement, such as INSERT, UPDATE or DELETE; or an SQL statement that returns nothing, such as a DDL statement.
      columnIndexes - an array of column indexes indicating the columns that should be returned from the inserted row
      Returns:
      either (1) the row count for SQL Data Manipulation Language (DML) statements or (2) 0 for SQL statements that return nothing
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement, the SQL statement returns a ResultSet object, or the second argument supplied to this method is not an int array whose elements are valid column indexes

    • executeUpdate

      public int executeUpdate(String sql, String[] columnNames) throws SQLException
      Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the names of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL Data Manipulation Language (DML) statement, such as INSERT, UPDATE or DELETE; or an SQL statement that returns nothing, such as a DDL statement.
      columnNames - an array of the names of the columns that should be returned from the inserted row
      Returns:
      either the row count for INSERT, UPDATE, or DELETE statements, or 0 for SQL statements that return nothing
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement, the SQL statement returns a ResultSet object, or the second argument supplied to this method is not a String array whose elements are valid column names

    • executeLargeUpdate

      public long executeLargeUpdate(String sql) throws SQLException
      Executes the given SQL statement, which may be an INSERT, UPDATE, or DELETE statement or an SQL statement that returns nothing, such as an SQL DDL statement. This method should be used when the returned row count may exceed Integer.MAX_VALUE.
      Specified by:
      executeLargeUpdate in interface Statement
      Parameters:
      sql - sql command
      Returns:
      update counts
      Throws:
      SQLException - if any error occur during execution

    • executeLargeUpdate

      public long executeLargeUpdate(String sql, int autoGeneratedKeys) throws SQLException
      Identical to executeLargeUpdate(String sql), with a flag that indicate that autoGeneratedKeys (primary key fields with "auto_increment") generated id's must be retrieved.

      Those id's will be available using getGeneratedKeys() method.

      Specified by:
      executeLargeUpdate in interface Statement
      Parameters:
      sql - sql command
      autoGeneratedKeys - a flag indicating whether auto-generated keys should be made available for retrieval; one of the following constants: Statement.RETURN_GENERATED_KEYS Statement.NO_GENERATED_KEYS
      Returns:
      update counts
      Throws:
      SQLException - if any error occur during execution

    • executeLargeUpdate

      public long executeLargeUpdate(String sql, int[] columnIndexes) throws SQLException
      Identical to executeLargeUpdate(String sql, int autoGeneratedKeys) with autoGeneratedKeys = Statement.RETURN_GENERATED_KEYS set.
      Specified by:
      executeLargeUpdate in interface Statement
      Parameters:
      sql - sql command
      columnIndexes - column Indexes
      Returns:
      update counts
      Throws:
      SQLException - if any error occur during execution

    • executeLargeUpdate

      public long executeLargeUpdate(String sql, String[] columnNames) throws SQLException
      Identical to executeLargeUpdate(String sql, int autoGeneratedKeys) with autoGeneratedKeys = Statement.RETURN_GENERATED_KEYS set.
      Specified by:
      executeLargeUpdate in interface Statement
      Parameters:
      sql - sql command
      columnNames - columns names
      Returns:
      update counts
      Throws:
      SQLException - if any error occur during execution

    • close

      public void close() throws SQLException
      Releases this Statement object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed. It is generally good practice to release resources as soon as you are finished with them to avoid tying up database resources. Calling the method close on a Statement object that is already closed has no effect. Note:When a Statement object is closed, its current ResultSet object, if one exists, is also closed.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Statement
      Throws:
      SQLException - if a database access error occurs

    • getMaxFieldSize

      public int getMaxFieldSize()
      Retrieves the maximum number of bytes that can be returned for character and binary column values in a ResultSet object produced by this Statement object. This limit applies only to BINARY, VARBINARY, LONGVARBINARY, CHAR, VARCHAR, NCHAR, NVARCHAR, LONGNVARCHAR and LONGVARCHAR columns. If the limit is exceeded, the excess data is silently discarded.
      Specified by:
      getMaxFieldSize in interface Statement
      Returns:
      the current column size limit for columns storing character and binary values; zero means there is no limit
      See Also:

    • setMaxFieldSize

      public void setMaxFieldSize(int max)
      Sets the limit for the maximum number of bytes that can be returned for character and binary column values in a ResultSet object produced by this Statement object. This limit applies only to BINARY, VARBINARY, LONGVARBINARY, CHAR, VARCHAR, NCHAR, NVARCHAR, LONGNVARCHAR and LONGVARCHAR fields. If the limit is exceeded, the excess data is silently discarded. For maximum portability, use values greater than 256.
      Specified by:
      setMaxFieldSize in interface Statement
      Parameters:
      max - the new column size limit in bytes; zero means there is no limit
      See Also:

    • getMaxRows

      public int getMaxRows()
      Retrieves the maximum number of rows that a ResultSet object produced by this Statement object can contain. If this limit is exceeded, the excess rows are silently dropped.
      Specified by:
      getMaxRows in interface Statement
      Returns:
      the current maximum number of rows for a ResultSet object produced by this Statement object; zero means there is no limit
      See Also:

    • setMaxRows

      public void setMaxRows(int max) throws SQLException
      Sets the limit for the maximum number of rows that any ResultSet object generated by this Statement object can contain to the given number. If the limit is exceeded, the excess rows are silently dropped.
      Specified by:
      setMaxRows in interface Statement
      Parameters:
      max - the new max rows limit; zero means there is no limit
      Throws:
      SQLException - if the condition max >= 0 is not satisfied
      See Also:

    • getLargeMaxRows

      public long getLargeMaxRows()
      Retrieves the maximum number of rows that a ResultSet object produced by this Statement object can contain. If this limit is exceeded, the excess rows are silently dropped.
      Specified by:
      getLargeMaxRows in interface Statement
      Returns:
      the current maximum number of rows for a ResultSet object produced by this Statement object; zero means there is no limit

    • setLargeMaxRows

      public void setLargeMaxRows(long max) throws SQLException
      Sets the limit for the maximum number of rows that any ResultSet object generated by this Statement object can contain to the given number. If the limit is exceeded, the excess rows are silently dropped.
      Specified by:
      setLargeMaxRows in interface Statement
      Parameters:
      max - the new max rows limit; zero means there is no limit
      Throws:
      SQLException - if the condition max >= 0 is not satisfied

    • setEscapeProcessing

      public void setEscapeProcessing(boolean enable)
      Sets escape processing on or off. If escape scanning is on (the default), the driver will do escape substitution before sending the SQL statement to the database. Note: Since prepared statements have usually been parsed prior to making this call, disabling escape processing for PreparedStatements objects will have no effect.
      Specified by:
      setEscapeProcessing in interface Statement
      Parameters:
      enable - true to enable escape processing; false to disable it

    • getQueryTimeout

      public int getQueryTimeout()
      Retrieves the number of seconds the driver will wait for a Statement object to execute. If the limit is exceeded, a SQLException is thrown.
      Specified by:
      getQueryTimeout in interface Statement
      Returns:
      the current query timeout limit in seconds; zero means there is no limit
      See Also:

    • setQueryTimeout

      public void setQueryTimeout(int seconds) throws SQLException
      Sets the number of seconds the driver will wait for a Statement object to execute to the given number of seconds. If the limit is exceeded, an SQLException is thrown. A JDBC driver must apply this limit to the execute, executeQuery and executeUpdate methods.
      Specified by:
      setQueryTimeout in interface Statement
      Parameters:
      seconds - the new query timeout limit in seconds; zero means there is no limit
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the condition seconds >= 0 is not satisfied
      See Also:

    • setLocalInfileInputStream

      public void setLocalInfileInputStream(InputStream inputStream) throws SQLException
      Sets the inputStream that will be used for the next execute that uses "LOAD DATA LOCAL INFILE". The name specified as local file/URL will be ignored.
      Parameters:
      inputStream - inputStream instance, that will be used to send data to server
      Throws:
      SQLException - if statement is closed

    • cancel

      public void cancel() throws SQLException
      Cancels this Statement object if both the DBMS and driver support aborting an SQL statement. This method can be used by one thread to cancel a statement that is being executed by another thread.

      In case there is result-set from this Statement that are still streaming data from server, will cancel streaming.

      Specified by:
      cancel in interface Statement
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement

    • getWarnings

      public SQLWarning getWarnings() throws SQLException
      Retrieves the first warning reported by calls on this Statement object. Subsequent Statement object warnings will be chained to this SQLWarning object.

      The warning chain is automatically cleared each time a statement is (re)executed. This method may not be called on a closed Statement object; doing so will cause an SQLException to be thrown.

      Note: If you are processing a ResultSet object, any warnings associated with reads on that ResultSet object will be chained on it rather than on the Statement object that produced it.

      Specified by:
      getWarnings in interface Statement
      Returns:
      the first SQLWarning object or null if there are no warnings
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement

    • clearWarnings

      public void clearWarnings()
      Clears all the warnings reported on this Statement object. After a call to this method, the method getWarnings will return null until a new warning is reported for this Statement object.
      Specified by:
      clearWarnings in interface Statement

    • setCursorName

      public void setCursorName(String name) throws SQLException
      Sets the SQL cursor name to the given String, which will be used by subsequent Statement object execute methods. This name can then be used in SQL positioned update or delete statements to identify the current row in the ResultSet object generated by this statement. If the database does not support positioned update/delete, this method is a noop. To insure that a cursor has the proper isolation level to support updates, the cursor's SELECT statement should have the form SELECT FOR UPDATE. If FOR UPDATE is not present, positioned updates may fail.

      Note: By definition, the execution of positioned updates and deletes must be done by a different Statement object than the one that generated the ResultSet object being used for positioning. Also, cursor names must be unique within a connection.

      Specified by:
      setCursorName in interface Statement
      Parameters:
      name - the new cursor name, which must be unique within a connection
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement

    • getConnection

      public MariaDbConnection getConnection()
      Gets the connection that created this statement.
      Specified by:
      getConnection in interface Statement
      Returns:
      the connection

    • getGeneratedKeys

      public ResultSet getGeneratedKeys() throws SQLException
      Retrieves any auto-generated keys created as a result of executing this Statement object. If this Statement object did not generate any keys, an empty ResultSet object is returned.

      Note:If the columns which represent the auto-generated keys were not specified, the JDBC driver implementation will determine the columns which best represent the auto-generated keys.

      Specified by:
      getGeneratedKeys in interface Statement
      Returns:
      a ResultSet object containing the auto-generated key(s) generated by the execution of this Statement object
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement

    • getResultSetHoldability

      public int getResultSetHoldability()
      Retrieves the result set holdability for ResultSet objects generated by this Statement object.
      Specified by:
      getResultSetHoldability in interface Statement
      Returns:
      either ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
      Since:
      1.4

    • isClosed

      public boolean isClosed()
      Retrieves whether this Statement object has been closed. A Statement is closed if the method close has been called on it, or if it is automatically closed.
      Specified by:
      isClosed in interface Statement
      Returns:
      true if this Statement object is closed; false if it is still open
      Since:
      1.6

    • isPoolable

      public boolean isPoolable()
      Returns a value indicating whether the Statement is poolable or not.
      Specified by:
      isPoolable in interface Statement
      Returns:
      true if the Statement is poolable; false otherwise
      Since:
      1.6
      See Also:

    • setPoolable

      public void setPoolable(boolean poolable)

      Requests that a Statement be pooled or not pooled. The value specified is a hint to the statement pool implementation indicating whether the applicaiton wants the statement to be pooled. It is up to the statement pool manager as to whether the hint is used.

      The poolable value of a statement is applicable to both internal statement caches implemented by the driver and external statement caches implemented by application servers and other applications.

      By default, a Statement is not poolable when created, and a PreparedStatement and CallableStatement are poolable when created.

      Specified by:
      setPoolable in interface Statement
      Parameters:
      poolable - requests that the statement be pooled if true and that the statement not be pooled if false
      Since:
      1.6

    • getResultSet

      public ResultSet getResultSet() throws SQLException
      Retrieves the current result as a ResultSet object. This method should be called only once per result.
      Specified by:
      getResultSet in interface Statement
      Returns:
      the current result as a ResultSet object or null if the result is an update count or there are no more results
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement

    • getUpdateCount

      public int getUpdateCount()
      Retrieves the current result as an update count; if the result is a ResultSet object or there are no more results, -1 is returned. This method should be called only once per result.
      Specified by:
      getUpdateCount in interface Statement
      Returns:
      the current result as an update count; -1 if the current result is a ResultSet object or there are no more results

    • getLargeUpdateCount

      public long getLargeUpdateCount()
      Retrieves the current result as an update count; if the result is a ResultSet object or there are no more results, -1 is returned.
      Specified by:
      getLargeUpdateCount in interface Statement
      Returns:
      last update count

    • skipMoreResults

      protected void skipMoreResults() throws SQLException
      Throws:
      SQLException

    • getMoreResults

      public boolean getMoreResults() throws SQLException

      Moves to this Statement object's next result, returns true if it is a ResultSet object, and implicitly closes any current ResultSet object(s) obtained with the method getResultSet.

      There are no more results when the following is true: 
       // stmt is a Statement object
 ((stmt.getInternalMoreResults() == false) && (stmt.getUpdateCount() == -1))
      Specified by:
      getMoreResults in interface Statement
      Returns:
      true if the next result is a ResultSet object; false if it is an update count or there are no more results
      Throws:
      SQLException - if a database access error occurs or this method is called on a closed Statement
      See Also:

    • getMoreResults

      public boolean getMoreResults(int current) throws SQLException

      Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.

      There are no more results when the following is true: 
       // stmt is a Statement object
 ((stmt.getInternalMoreResults(current) == false) && (stmt.getUpdateCount() == -1))
      Specified by:
      getMoreResults in interface Statement
      Parameters:
      current - one of the following Statement constants indicating what should happen to current ResultSet objects obtained using the method getResultSet: Statement.CLOSE_CURRENT_RESULT, Statement.KEEP_CURRENT_RESULT, or Statement.CLOSE_ALL_RESULTS
      Returns:
      true if the next result is a ResultSet object; false if it is an update count or there are no more results
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the argument supplied is not one of the following: Statement.CLOSE_CURRENT_RESULT, Statement.KEEP_CURRENT_RESULT or Statement.CLOSE_ALL_RESULTS
      See Also:

    • getFetchDirection

      public int getFetchDirection()
      Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object. If this Statement object has not set a fetch direction by calling the method setFetchDirection, the return value is implementation-specific.
      Specified by:
      getFetchDirection in interface Statement
      Returns:
      the default fetch direction for result sets generated from this Statement object
      Since:
      1.2
      See Also:

    • setFetchDirection

      public void setFetchDirection(int direction)

      Gives the driver a hint as to the direction in which rows will be processed in ResultSet objects created using this Statement object. The default value is ResultSet.FETCH_FORWARD.

      Note that this method sets the default fetch direction for result sets generated by this Statement object. Each result set has its own methods for getting and setting its own fetch direction.

      Specified by:
      setFetchDirection in interface Statement
      Parameters:
      direction - the initial direction for processing rows
      Since:
      1.2
      See Also:

    • getFetchSize

      public int getFetchSize()
      Retrieves the number of result set rows that is the default fetch size for ResultSet objects generated from this Statement object. If this Statement object has not set a fetch size by calling the method setFetchSize, the return value is implementation-specific.
      Specified by:
      getFetchSize in interface Statement
      Returns:
      the default fetch size for result sets generated from this Statement object
      See Also:

    • setFetchSize

      public void setFetchSize(int rows) throws SQLException
      Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for ResultSet objects generated by this Statement. If the value specified is zero, then the hint is ignored. The default value is zero.
      Specified by:
      setFetchSize in interface Statement
      Parameters:
      rows - the number of rows to fetch
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the condition rows >= 0 is not satisfied.
      See Also:

    • getResultSetConcurrency

      public int getResultSetConcurrency()
      Retrieves the result set concurrency for ResultSet objects generated by this Statement object.
      Specified by:
      getResultSetConcurrency in interface Statement
      Returns:
      either ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
      Since:
      1.2

    • getResultSetType

      public int getResultSetType()
      Retrieves the result set type for ResultSet objects generated by this Statement object.
      Specified by:
      getResultSetType in interface Statement
      Returns:
      one of ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE

    • addBatch

      public void addBatch(String sql) throws SQLException
      Adds the given SQL command to the current list of commands for this Statement object. The send in this list can be executed as a batch by calling the method executeBatch.
      Specified by:
      addBatch in interface Statement
      Parameters:
      sql - typically this is a SQL INSERT or UPDATE statement
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the driver does not support batch updates
      See Also:

    • clearBatch

      public void clearBatch()
      Empties this Statement object's current list of SQL send.
      Specified by:
      clearBatch in interface Statement
      Since:
      1.2
      See Also:

    • executeBatch

      public int[] executeBatch() throws SQLException
      Execute statements. depending on option, queries mays be rewritten :

      those queries will be rewritten if possible to INSERT INTO ... VALUES (...) ; INSERT INTO ... VALUES (...);

      if option rewriteBatchedStatements is set to true, rewritten to INSERT INTO ... VALUES (...), (...);

      Specified by:
      executeBatch in interface Statement
      Returns:
      an array of update counts containing one element for each command in the batch. The elements of the array are ordered according to the order in which send were added to the batch.
      Throws:
      SQLException - if a database access error occurs, this method is called on a closed Statement or the driver does not support batch statements. Throws BatchUpdateException (a subclass of SQLException) if one of the send sent to the database fails to execute properly or attempts to return a result set.
      Since:
      1.3
      See Also:

    • executeLargeBatch

      public long[] executeLargeBatch() throws SQLException
      Execute batch, like executeBatch(), with returning results with long[]. For when row count may exceed Integer.MAX_VALUE.
      Specified by:
      executeLargeBatch in interface Statement
      Returns:
      an array of update counts (one element for each command in the batch)
      Throws:
      SQLException - if a database error occur.

    • internalBatchExecution

      private void internalBatchExecution(int size) throws SQLException
      Internal batch execution.
      Parameters:
      size - expected result-set size
      Throws:
      SQLException - throw exception if batch error occur

    • unwrap

      public <T> T unwrap(Class<T> iface) throws SQLException

      Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

      If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.

      Specified by:
      unwrap in interface Wrapper
      Parameters:
      iface - A Class defining an interface that the result must implement.
      Returns:
      an object that implements the interface. May be a proxy for the actual implementing object.
      Throws:
      SQLException - If no object found that implements the interface
      Since:
      1.6

    • isWrapperFor

      public boolean isWrapperFor(Class<?> interfaceOrWrapper) throws SQLException
      Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively calling isWrapperFor on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared to unwrap so that callers can use this method to avoid expensive unwrap calls that may fail. If this method returns true then calling unwrap with the same argument should succeed.
      Specified by:
      isWrapperFor in interface Wrapper
      Parameters:
      interfaceOrWrapper - a Class defining an interface.
      Returns:
      true if this implements the interface or directly or indirectly wraps an object that does.
      Throws:
      SQLException - if an error occurs while determining whether this is a wrapper for an object with the given interface.
      Since:
      1.6

    • closeOnCompletion

      public void closeOnCompletion()
      Specified by:
      closeOnCompletion in interface Statement

    • isCloseOnCompletion

      public boolean isCloseOnCompletion()
      Specified by:
      isCloseOnCompletion in interface Statement

    • checkCloseOnCompletion

      public void checkCloseOnCompletion(ResultSet resultSet) throws SQLException
      Check that close on completion is asked, and close if so.
      Parameters:
      resultSet - resultSet
      Throws:
      SQLException - if close has error

    • checkClose

      protected void checkClose() throws SQLException
      Check if statement is closed, and throw exception if so.
      Throws:
      SQLException - if statement close

    • getServerThreadId

      public long getServerThreadId()
      Permit to retrieve current connection thread id, or -1 if unknown.
      Returns:
      current connection thread id.