Package com.gargoylesoftware.base.resource.jdbc

Class StatementWrapper

java.lang.Object
com.gargoylesoftware.base.resource.jdbc.StatementWrapper
All Implemented Interfaces:
AutoCloseable, Statement, Wrapper
Direct Known Subclasses:
PreparedStatementWrapper
public class StatementWrapper extends Object implements Statement

The object used for executing a static SQL statement and obtaining the results produced by it.

Only one ResultSet object per Statement object can be open at any point in time. Therefore, if the reading of one ResultSet object is interleaved with the reading of another, each must have been generated by different Statement objects. All statement execute methods implicitly close a statment's current ResultSet object if an open one exists.

Version:
$Revision: 1.4 $

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private Connection
    connection_
     
    private Statement
    delegate_
     
    private boolean
    isOpen_
     
    private final List
    openResultSets_
     

    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
    StatementWrapper(Statement statement)
    Create a new wrapper

  • Method Summary

    Modifier and Type
    Method
    Description
    final void
    addBatch(String sql)
    Adds an SQL command to the current batch of commmands for this Statement object.
    final void
    cancel()
    Cancels this Statement object if both the DBMS and driver support aborting an SQL statement.
    protected final void
    checkIsOpen()
    Check to see if the connection is still open
    final void
    clearBatch()
    Makes the set of commands in the current batch empty.
    final void
    clearWarnings()
    Clears all the warnings reported on this Statement object.
    final 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()
     
    final boolean
    execute(String sql)
    Executes an SQL statement that may return multiple results.
    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.
    final int[]
    executeBatch()
    Submits a batch of commands to the database for execution and if all commands execute successfully, returns an array of update counts.
    final ResultSet
    executeQuery(String sql)
    Executes an SQL statement that returns a single ResultSet object.
    final int
    executeUpdate(String sql)
    Executes an SQL INSERT, UPDATE or DELETE statement.
    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.
    final Connection
    getConnection()
    Returns the Connection object that produced this Statement object.
    final Statement
    getDelegate()
    Return the statement that is wrapped
    final int
    getFetchDirection()
    Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object.
    final int
    getFetchSize()
    Retrieves the number of result set rows that is the default fetch size for result sets generated from this Statement object.
    ResultSet
    getGeneratedKeys()
    Retrieves any auto-generated keys created as a result of executing this Statement object.
    final int
    getMaxFieldSize()
    Returns the maximum number of bytes allowed for any column value.
    final int
    getMaxRows()
    Retrieves the maximum number of rows that a ResultSet object can contain.
    final boolean
    getMoreResults()
    Moves to a Statement object's next result.
    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.
    final int
    getQueryTimeout()
    Retrieves the number of seconds the driver will wait for a Statement object to execute.
    final ResultSet
    getResultSet()
    Returns the current result as a ResultSet object.
    final 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.
    final int
    getResultSetType()
    Retrieves the result set type for ResultSet objects generated by this Statement object.
    final int
    getUpdateCount()
    Returns the current result as an update count; if the result is a ResultSet object or there are no more results, -1 is returned.
    final SQLWarning
    getWarnings()
    Retrieves the first warning reported by calls on this Statement object.
    final boolean
    isClosed()
    Return true if this statement has been closed
    boolean
    isCloseOnCompletion()
     
    boolean
    isPoolable()
     
    boolean
    isWrapperFor(Class<?> iface)
     
    final void
    setConnection(Connection connection)
    Set the connection that created this statement
    final void
    setCursorName(String name)
    Defines the SQL cursor name that will be used by subsequent Statement object execute methods.
    final void
    setEscapeProcessing(boolean enable)
    Sets escape processing on or off.
    final void
    setFetchDirection(int direction)
    Gives the driver a hint as to the direction in which the rows in a result set will be processed.
    final 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.
    final void
    setMaxFieldSize(int max)
    Sets the limit for the maximum number of bytes in a column to the given number of bytes.
    final void
    setMaxRows(int max)
    Sets the limit for the maximum number of rows that any ResultSet object can contain to the given number.
    void
    setPoolable(boolean poolable)
     
    final 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.
    <T> T
    unwrap(Class<T> iface)
     
    protected final ResultSet
    wrapResultSet(ResultSet resultSet)
    Wrap the specified result set in a ResultSetWrapper object and return the wrapper.

    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, executeLargeBatch, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, getLargeMaxRows, getLargeUpdateCount, isSimpleIdentifier, setLargeMaxRows

  • Field Details

    • delegate_

      private Statement delegate_

    • connection_

      private Connection connection_

    • isOpen_

      private boolean isOpen_

    • openResultSets_

      private final List openResultSets_

  • Constructor Details

    • StatementWrapper

      public StatementWrapper(Statement statement)
      Create a new wrapper
      Parameters:
      statement - The statement that we are wrapping

  • Method Details

    • setConnection

      public final void setConnection(Connection connection)
      Set the connection that created this statement
      Parameters:
      connection - The connection

    • setMaxFieldSize

      public final void setMaxFieldSize(int max) throws SQLException
      Sets the limit for the maximum number of bytes in a column to the given number of bytes. This is the maximum number of bytes that can be returned for any column value. This limit applies only to BINARY , VARBINARY, LONGVARBINARY, CHAR, VARCHAR, 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 max column size limit; zero means unlimited
      Throws:
      SQLException - if a database access error occurs

    • setMaxRows

      public final void setMaxRows(int max) throws SQLException
      Sets the limit for the maximum number of rows that any ResultSet 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 unlimited
      Throws:
      SQLException - if a database access error occurs

    • setEscapeProcessing

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

    • setQueryTimeout

      public final 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.
      Specified by:
      setQueryTimeout in interface Statement
      Parameters:
      seconds - the new query timeout limit in seconds; zero means unlimited
      Throws:
      SQLException - if a database access error occurs

    • setCursorName

      public final void setCursorName(String name) throws SQLException
      Defines the SQL cursor name that will be used by subsequent Statement object execute methods. This name can then be used in SQL positioned update/delete statements to identify the current row in the ResultSet object generated by this statement. If the database doesn't 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 be of the form 'select for update ...'. If the 'for update' phrase is omitted, positioned updates may fail.

      Note: By definition, positioned update/delete execution must be done by a different Statement object than the one which 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

    • setFetchDirection

      public final void setFetchDirection(int direction) throws SQLException
      Gives the driver a hint as to the direction in which the rows in a result set will be processed. The hint applies only to result sets 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
      Throws:
      SQLException - if a database access error occurs or the given direction is not one of ResultSet.FETCH_FORWARD, ResultSet.FETCH_REVERSE , or ResultSet.FETCH_UNKNOWN
      Since:
      1.2

    • setFetchSize

      public final 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. The number of rows specified affects only result sets created using 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, or the condition 0 invalid input: '<'= rows invalid input: '<'= this.getMaxRows() is not satisfied.
      Since:
      1.2

    • getDelegate

      public final Statement getDelegate()
      Return the statement that is wrapped
      Returns:
      The wrapped statement

    • isClosed

      public final boolean isClosed()
      Return true if this statement has been closed
      Specified by:
      isClosed in interface Statement
      Returns:
      true if this statement has been closed

    • getMaxFieldSize

      public final int getMaxFieldSize() throws SQLException
      Returns the maximum number of bytes allowed for any column value. This limit is the maximum number of bytes that can be returned for any column value. The limit applies only to BINARY, VARBINARY , LONGVARBINARY, CHAR, VARCHAR, and LONGVARCHAR columns. If the limit is exceeded, the excess data is silently discarded.
      Specified by:
      getMaxFieldSize in interface Statement
      Returns:
      the current max column size limit; zero means unlimited
      Throws:
      SQLException - if a database access error occurs

    • getMaxRows

      public final int getMaxRows() throws SQLException
      Retrieves the maximum number of rows that a ResultSet object can contain. If the limit is exceeded, the excess rows are silently dropped.
      Specified by:
      getMaxRows in interface Statement
      Returns:
      the current max row limit; zero means unlimited
      Throws:
      SQLException - if a database access error occurs

    • getQueryTimeout

      public final int getQueryTimeout() throws SQLException
      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 unlimited
      Throws:
      SQLException - if a database access error occurs

    • getWarnings

      public final 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.

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

      Specified by:
      getWarnings in interface Statement
      Returns:
      the first SQLWarning object or null
      Throws:
      SQLException - if a database access error occurs

    • getResultSet

      public final ResultSet getResultSet() throws SQLException
      Returns 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; null if the result is an update count or there are no more results
      Throws:
      SQLException - if a database access error occurs

    • getUpdateCount

      public final int getUpdateCount() throws SQLException
      Returns 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
      Throws:
      SQLException - if a database access error occurs

    • getMoreResults

      public final boolean getMoreResults() throws SQLException
      Moves to a Statement object's next result. It returns true if this result is a ResultSet object. This method also implicitly closes any current ResultSet object obtained with the method getResultSet.

      There are no more results when the following is true: 

            (!getMoreResults() invalid input: '&'invalid input: '&' (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

    • getFetchDirection

      public final int getFetchDirection() throws SQLException
      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
      Throws:
      SQLException - if a database access error occurs
      Since:
      1.2

    • getFetchSize

      public final int getFetchSize() throws SQLException
      Retrieves the number of result set rows that is the default fetch size for result sets 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
      Throws:
      SQLException - if a database access error occurs
      Since:
      1.2

    • getResultSetConcurrency

      public final int getResultSetConcurrency() throws SQLException
      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
      Throws:
      SQLException - If an error occurs
      Since:
      1.2

    • getResultSetType

      public final int getResultSetType() throws SQLException
      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
      Throws:
      SQLException - If an error occurs
      Since:
      1.2

    • getConnection

      public final Connection getConnection() throws SQLException
      Returns the Connection object that produced this Statement object.
      Specified by:
      getConnection in interface Statement
      Returns:
      the connection that produced this statement
      Throws:
      SQLException - if a database access error occurs
      Since:
      1.2

    • executeQuery

      public final ResultSet executeQuery(String sql) throws SQLException
      Executes an SQL statement that returns a single ResultSet object.
      Specified by:
      executeQuery in interface Statement
      Parameters:
      sql - typically this is a static SQL SELECT statement
      Returns:
      a ResultSet object that contains the data produced by the given query; never null
      Throws:
      SQLException - if a database access error occurs

    • executeUpdate

      public final int executeUpdate(String sql) throws SQLException
      Executes an SQL INSERT, UPDATE or DELETE statement. In addition, SQL statements that return nothing, such as SQL DDL statements, can be executed.
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing
      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

    • close

      public final 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.

      Note: A Statement object is automatically closed when it is garbage collected. 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

    • cancel

      public final 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.
      Specified by:
      cancel in interface Statement
      Throws:
      SQLException - if a database access error occurs

    • clearWarnings

      public final void clearWarnings() throws SQLException
      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
      Throws:
      SQLException - if a database access error occurs

    • execute

      public final boolean execute(String sql) throws SQLException
      Executes an SQL statement that may return multiple results. 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 methods execute, getMoreResults, getResultSet , and getUpdateCount let you navigate through multiple results. The execute method executes an SQL statement and indicates the form of the first result. You can then use the methods getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).
      Specified by:
      execute in interface Statement
      Parameters:
      sql - any SQL 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

    • addBatch

      public final void addBatch(String sql) throws SQLException
      Adds an SQL command to the current batch of commmands for this Statement object. This method is optional.
      Specified by:
      addBatch in interface Statement
      Parameters:
      sql - typically this is a static SQL INSERT or UPDATE statement
      Throws:
      SQLException - if a database access error occurs, or the driver does not support batch statements
      Since:
      1.2

    • clearBatch

      public final void clearBatch() throws SQLException
      Makes the set of commands in the current batch empty. This method is optional.
      Specified by:
      clearBatch in interface Statement
      Throws:
      SQLException - if a database access error occurs or the driver does not support batch statements
      Since:
      1.2

    • executeBatch

      public final int[] executeBatch() throws SQLException
      Submits a batch of commands to the database for execution and if all commands execute successfully, returns an array of update counts. The int elements of the array that is returned are ordered to correspond to the commands in the batch, which are ordered according to the order in which they were added to the batch. The elements in the array returned by the method executeBatch may be one of the following:
      1. A number greater than or equal to zero -- indicates that the command was processed successfully and is an update count giving the number of rows in the database that were affected by the command's execution
      2. A value of -2 -- indicates that the command was processed successfully but that the number of rows affected is unknown

        If one of the commands in a batch update fails to execute properly, this method throws a BatchUpdateException, and a JDBC driver may or may not continue to process the remaining commands in the batch. However, the driver's behavior must be consistent with a particular DBMS, either always continuing to process commands or never continuing to process commands. If the driver continues processing after a failure, the array returned by the method BatchUpdateException.getUpdateCounts will contain as many elements as there are commands in the batch, and at least one of the elements will be the following:

      3. A value of -3 -- indicates that the command failed to execute successfully and occurs only if a driver continues to process commands after a command fails

      A driver is not required to implement this method. The possible implementations and return values have been modified in the Java 2 SDK, Standard Edition, version 1.3 to accommodate the option of continuing to proccess commands in a batch update after a BatchUpdateException object has been thrown.

      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 commands were added to the batch.
      Throws:
      SQLException - if a database access error occurs or the driver does not support batch statements. Throws BatchUpdateException (a subclass of SQLException) if one of the commands sent to the database fails to execute properly or attempts to return a result set.
      Since:
      1.3

    • checkIsOpen

      protected final void checkIsOpen() throws SQLException
      Check to see if the connection is still open
      Throws:
      SQLException - If an error occurs

    • wrapResultSet

      protected final ResultSet wrapResultSet(ResultSet resultSet)
      Wrap the specified result set in a ResultSetWrapper object and return the wrapper.
      Parameters:
      resultSet - The object to be wrapped
      Returns:
      The wrapper.

    • 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: 

            (!getMoreResults() invalid input: '&'invalid input: '&' (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 getResultSetinvalid input: '<'/code: CLOSE_CURRENT_RESULT, KEEP_CURRENT_RESULT, or 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
      Since:
      1.4

    • 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.
      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
      Since:
      java 1.4

    • 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.
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - must be an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing
      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 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, the given SQL statement returns a ResultSet object, or the given constant is not one of those allowed
      Since:
      java 1.4

    • 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. The driver will ignore the array if the SQL statement is not an INSERT statement.
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing, such as an SQL DDL statement
      columnIndexes - an array of column indexes indicating 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 or the SQL statement returns a ResultSet object
      Since:
      java 1.4

    • 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. The driver will ignore the array if the SQL statement is not an INSERT statement.
      Specified by:
      executeUpdate in interface Statement
      Parameters:
      sql - an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing
      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
      Since:
      java 1.4

    • 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.

      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 getMoreResults 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 method getGeneratedKeys; 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
      Since:
      java 1.4

    • 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 given SQL statement is not an INSERT statement.

      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 getMoreResults 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
      Since:
      java 1.4

    • 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 given SQL statement is not an INSERT statement.

      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 getMoreResults 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
      Since:
      java 1.4

    • getResultSetHoldability

      public int getResultSetHoldability() throws SQLException
      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
      Throws:
      SQLException - if a database access error occurs
      Since:
      java 1.4

    • isCloseOnCompletion

      public boolean isCloseOnCompletion() throws SQLException
      Specified by:
      isCloseOnCompletion in interface Statement
      Throws:
      SQLException

    • closeOnCompletion

      public void closeOnCompletion() throws SQLException
      Specified by:
      closeOnCompletion in interface Statement
      Throws:
      SQLException

    • isPoolable

      public boolean isPoolable() throws SQLException
      Specified by:
      isPoolable in interface Statement
      Throws:
      SQLException

    • setPoolable

      public void setPoolable(boolean poolable) throws SQLException
      Specified by:
      setPoolable in interface Statement
      Throws:
      SQLException

    • isWrapperFor

      public boolean isWrapperFor(Class<?> iface) throws SQLException
      Specified by:
      isWrapperFor in interface Wrapper
      Throws:
      SQLException

    • unwrap

      public <T> T unwrap(Class<T> iface) throws SQLException
      Specified by:
      unwrap in interface Wrapper
      Throws:
      SQLException