Class StatementWrapper
- java.lang.Object
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- com.sun.gjc.spi.base.StatementWrapper
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- All Implemented Interfaces:
StatementLeakListener
,AutoCloseable
,Statement
,Wrapper
- Direct Known Subclasses:
PreparedStatementWrapper
,StatementWrapper40
public abstract class StatementWrapper extends Object implements Statement, StatementLeakListener
Abstract class for wrapping Statement
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Field Summary
Fields Modifier and Type Field Description protected static Logger
_logger
protected Connection
connection
protected MethodExecutor
executor
protected Statement
jdbcStatement
protected StatementLeakDetector
leakDetector
protected AtomicInteger
resultSetCount
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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
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Constructor Summary
Constructors Constructor Description StatementWrapper(Connection con, Statement statement)
Abstract class for wrapping Statement
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
actualCloseOnCompletion()
void
addBatch(String sql)
Adds the given SQL command to the current list of commmands for thisStatement
object.void
cancel()
Cancels thisStatement
object if both the DBMS and driver support aborting an SQL statement.void
clearBatch()
Empties thisStatement
object's current list of SQL commands.void
clearWarnings()
Clears all the warnings reported on thisStatement
object.void
close()
Releases thisStatement
object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.void
closeOnCompletion()
void
decrementResultSetCount()
boolean
execute(String sql)
Executes the given SQL statement, which 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.int[]
executeBatch()
Submits a batch of commands to the database for execution and if all commands execute successfully, returns an array of update counts.int
executeUpdate(String sql)
Executes the given SQL statement, which may be anINSERT
,UPDATE
, orDELETE
statement or an SQL statement that returns nothing, such as an SQL DDL 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 thisStatement
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.Connection
getActualConnection()
Returns the underlying physical connection.boolean
getCloseOnCompletion()
Connection
getConnection()
Retrieves theConnection
object that produced thisStatement
object.int
getFetchDirection()
Retrieves the direction for fetching rows from database tables that is the default for result sets generated from thisStatement
object.int
getFetchSize()
Retrieves the number of result set rows that is the default fetch size forResultSet
objects generated from thisStatement
object.int
getMaxFieldSize()
Retrieves the maximum number of bytes that can be returned for character and binary column values in aResultSet
object produced by thisStatement
object.int
getMaxRows()
Retrieves the maximum number of rows that aResultSet
object produced by thisStatement
object can contain.boolean
getMoreResults()
Moves to thisStatement
object's next result, returnstrue
if it is aResultSet
object, and implicitly closes any currentResultSet
object(s) obtained with the methodgetResultSet
.boolean
getMoreResults(int current)
Moves to thisStatement
object's next result, deals with any currentResultSet
object(s) according to the instructions specified by the given flag, and returnstrue
if the next result is aResultSet
object.int
getQueryTimeout()
Retrieves the number of seconds the driver will wait for aStatement
object to execute.int
getResultSetConcurrency()
Retrieves the result set concurrency forResultSet
objects generated by thisStatement
object.int
getResultSetCount()
int
getResultSetHoldability()
Retrieves the result set holdability forResultSet
objects generated by thisStatement
object.int
getResultSetType()
Retrieves the result set type forResultSet
objects generated by thisStatement
object.int
getUpdateCount()
Retrieves the current result as an update count; if the result is aResultSet
object or there are no more results, -1 is returned.SQLWarning
getWarnings()
Retrieves the first warning reported by calls on thisStatement
object.void
incrementResultSetCount()
boolean
isCloseOnCompletion()
boolean
isMarkedForReclaim()
void
markForReclaim(boolean reclaimStatus)
void
reclaimStatement()
Reclaim the leaked statementvoid
setCursorName(String name)
Sets the SQL cursor name to the givenString
, which will be used by subsequentStatement
objectexecute
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 inResultSet
objects created using thisStatement
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.void
setMaxFieldSize(int max)
Sets the limit for the maximum number of bytes in aResultSet
column storing character or binary values to the given number of bytes.void
setMaxRows(int max)
Sets the limit for the maximum number of rows that anyResultSet
object can contain to the given number.void
setQueryTimeout(int seconds)
Sets the number of seconds the driver will wait for aStatement
object to execute to the given number of seconds.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.sql.Statement
enquoteIdentifier, enquoteLiteral, enquoteNCharLiteral, executeLargeBatch, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, executeLargeUpdate, executeQuery, getGeneratedKeys, getLargeMaxRows, getLargeUpdateCount, getResultSet, isClosed, isPoolable, isSimpleIdentifier, setLargeMaxRows, setPoolable
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Methods inherited from interface java.sql.Wrapper
isWrapperFor, unwrap
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Field Detail
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connection
protected Connection connection
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jdbcStatement
protected Statement jdbcStatement
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leakDetector
protected StatementLeakDetector leakDetector
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_logger
protected static final Logger _logger
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executor
protected MethodExecutor executor
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resultSetCount
protected AtomicInteger resultSetCount
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Constructor Detail
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StatementWrapper
public StatementWrapper(Connection con, Statement statement)
Abstract class for wrapping Statement- Parameters:
con
- ConnectionWrapperstatement
- Statement that is to be wrapped
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Method Detail
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executeUpdate
public int executeUpdate(String sql) throws SQLException
Executes the given SQL statement, which may be anINSERT
,UPDATE
, orDELETE
statement or an SQL statement that returns nothing, such as an SQL DDL statement.- Specified by:
executeUpdate
in interfaceStatement
- Parameters:
sql
- an SQLINSERT
,UPDATE
orDELETE
statement or an SQL statement that returns nothing- Returns:
- either the row count for
INSERT
,UPDATE
orDELETE
statements, or0
for SQL statements that return nothing - Throws:
SQLException
- if a database access error occurs or the given SQL statement produces aResultSet
object
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close
public void close() throws SQLException
Releases thisStatement
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
Note: Aclose
on aStatement
object that is already closed has no effect.Statement
object is automatically closed when it is garbage collected. When aStatement
object is closed, its currentResultSet
object, if one exists, is also closed.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceStatement
- Throws:
SQLException
- if a database access error occurs
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getMaxFieldSize
public int getMaxFieldSize() throws SQLException
Retrieves the maximum number of bytes that can be returned for character and binary column values in aResultSet
object produced by thisStatement
object. This limit applies only toBINARY
,VARBINARY
,LONGVARBINARY
,CHAR
,VARCHAR
, andLONGVARCHAR
columns. If the limit is exceeded, the excess data is silently discarded.- Specified by:
getMaxFieldSize
in interfaceStatement
- Returns:
- the current column size limit for columns storing character and binary values; zero means there is no limit
- Throws:
SQLException
- if a database access error occurs- See Also:
setMaxFieldSize(int)
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setMaxFieldSize
public void setMaxFieldSize(int max) throws SQLException
Sets the limit for the maximum number of bytes in aResultSet
column storing character or binary values to the given number of bytes. This limit applies only toBINARY
,VARBINARY
,LONGVARBINARY
,CHAR
,VARCHAR
, andLONGVARCHAR
fields. If the limit is exceeded, the excess data is silently discarded. For maximum portability, use values greater than 256.- Specified by:
setMaxFieldSize
in interfaceStatement
- Parameters:
max
- the new column size limit in bytes; zero means there is no limit- Throws:
SQLException
- if a database access error occurs or the condition max >= 0 is not satisfied- See Also:
getMaxFieldSize()
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getMaxRows
public int getMaxRows() throws SQLException
Retrieves the maximum number of rows that aResultSet
object produced by thisStatement
object can contain. If this limit is exceeded, the excess rows are silently dropped.- Specified by:
getMaxRows
in interfaceStatement
- Returns:
- the current maximum number of rows for a
ResultSet
object produced by thisStatement
object; zero means there is no limit - Throws:
SQLException
- if a database access error occurs- See Also:
setMaxRows(int)
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setMaxRows
public void setMaxRows(int max) throws SQLException
Sets the limit for the maximum number of rows that anyResultSet
object can contain to the given number. If the limit is exceeded, the excess rows are silently dropped.- Specified by:
setMaxRows
in interfaceStatement
- Parameters:
max
- the new max rows limit; zero means there is no limit- Throws:
SQLException
- if a database access error occurs or the condition max >= 0 is not satisfied- See Also:
getMaxRows()
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setEscapeProcessing
public 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 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 interfaceStatement
- Parameters:
enable
-true
to enable escape processing;false
to disable it- Throws:
SQLException
- if a database access error occurs
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getQueryTimeout
public int getQueryTimeout() throws SQLException
Retrieves the number of seconds the driver will wait for aStatement
object to execute. If the limit is exceeded, aSQLException
is thrown.- Specified by:
getQueryTimeout
in interfaceStatement
- Returns:
- the current query timeout limit in seconds; zero means there is no limit
- Throws:
SQLException
- if a database access error occurs- See Also:
setQueryTimeout(int)
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setQueryTimeout
public void setQueryTimeout(int seconds) throws SQLException
Sets the number of seconds the driver will wait for aStatement
object to execute to the given number of seconds. If the limit is exceeded, anSQLException
is thrown.- Specified by:
setQueryTimeout
in interfaceStatement
- Parameters:
seconds
- the new query timeout limit in seconds; zero means there is no limit- Throws:
SQLException
- if a database access error occurs or the condition seconds >= 0 is not satisfied- See Also:
getQueryTimeout()
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cancel
public void cancel() throws SQLException
Cancels thisStatement
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 interfaceStatement
- Throws:
SQLException
- if a database access error occurs
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getWarnings
public SQLWarning getWarnings() throws SQLException
Retrieves the first warning reported by calls on thisStatement
object. SubsequentStatement
object warnings will be chained to thisSQLWarning
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 anSQLException
to be thrown.Note: If you are processing a
ResultSet
object, any warnings associated with reads on thatResultSet
object will be chained on it rather than on theStatement
object that produced it.- Specified by:
getWarnings
in interfaceStatement
- Returns:
- the first
SQLWarning
object ornull
if there are no warnings - Throws:
SQLException
- if a database access error occurs or this method is called on a closed statement
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clearWarnings
public void clearWarnings() throws SQLException
Clears all the warnings reported on thisStatement
object. After a call to this method, the methodgetWarnings
will returnnull
until a new warning is reported for thisStatement
object.- Specified by:
clearWarnings
in interfaceStatement
- Throws:
SQLException
- if a database access error occurs
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setCursorName
public void setCursorName(String name) throws SQLException
Sets the SQL cursor name to the givenString
, which will be used by subsequentStatement
objectexecute
methods. This name can then be used in SQL positioned update or delete statements to identify the current row in theResultSet
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'sSELECT
statement should have the formSELECT FOR UPDATE
. IfFOR UPDATE
is not present, positioned updates may fail.Statement
object than the one that generated theResultSet
object being used for positioning. Also, cursor names must be unique within a connection.- Specified by:
setCursorName
in interfaceStatement
- Parameters:
name
- the new cursor name, which must be unique within a connection- Throws:
SQLException
- if a database access error occurs
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execute
public boolean execute(String sql) throws SQLException
Executes the given SQL statement, which may return multiple results. 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 methodsgetResultSet
orgetUpdateCount
to retrieve the result, andgetMoreResults
to move to any subsequent result(s).- Specified by:
execute
in interfaceStatement
- Parameters:
sql
- any SQL statement- Returns:
true
if the first result is aResultSet
object;false
if it is an update count or there are no results- Throws:
SQLException
- if a database access error occurs- See Also:
Statement.getResultSet()
,getUpdateCount()
,getMoreResults()
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getUpdateCount
public int getUpdateCount() throws SQLException
Retrieves the current result as an update count; if the result is aResultSet
object or there are no more results, -1 is returned. This method should be called only once per result.- Specified by:
getUpdateCount
in interfaceStatement
- 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- See Also:
execute(java.lang.String)
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getMoreResults
public boolean getMoreResults() throws SQLException
Moves to thisStatement
object's next result, returnstrue
if it is aResultSet
object, and implicitly closes any currentResultSet
object(s) obtained with the methodgetResultSet
.// stmt is a Statement object ((stmt.getMoreResults() == false) && (stmt.getUpdateCount() == -1))
- Specified by:
getMoreResults
in interfaceStatement
- Returns:
true
if the next result is aResultSet
object;false
if it is an update count or there are no more results- Throws:
SQLException
- if a database access error occurs- See Also:
execute(java.lang.String)
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setFetchDirection
public void setFetchDirection(int direction) throws SQLException
Gives the driver a hint as to the direction in which rows will be processed inResultSet
objects created using thisStatement
object. The default value isResultSet.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 interfaceStatement
- Parameters:
direction
- the initial direction for processing rows- Throws:
SQLException
- if a database access error occurs or the given direction is not one ofResultSet.FETCH_FORWARD
,ResultSet.FETCH_REVERSE
, orResultSet.FETCH_UNKNOWN
- Since:
- 1.2
- See Also:
getFetchDirection()
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getFetchDirection
public int getFetchDirection() throws SQLException
Retrieves the direction for fetching rows from database tables that is the default for result sets generated from thisStatement
object. If thisStatement
object has not set a fetch direction by calling the methodsetFetchDirection
, the return value is implementation-specific.- Specified by:
getFetchDirection
in interfaceStatement
- Returns:
- the default fetch direction for result sets generated
from this
Statement
object - Throws:
SQLException
- if a database access error occurs- Since:
- 1.2
- See Also:
setFetchDirection(int)
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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. 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 interfaceStatement
- Parameters:
rows
- the number of rows to fetch- Throws:
SQLException
- if a database access error occurs, or the condition 0 <=rows
<=this.getMaxRows()
is not satisfied.- Since:
- 1.2
- See Also:
getFetchSize()
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getFetchSize
public int getFetchSize() throws SQLException
Retrieves the number of result set rows that is the default fetch size forResultSet
objects generated from thisStatement
object. If thisStatement
object has not set a fetch size by calling the methodsetFetchSize
, the return value is implementation-specific.- Specified by:
getFetchSize
in interfaceStatement
- Returns:
- the default fetch size for result sets generated
from this
Statement
object - Throws:
SQLException
- if a database access error occurs- Since:
- 1.2
- See Also:
setFetchSize(int)
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getResultSetConcurrency
public int getResultSetConcurrency() throws SQLException
Retrieves the result set concurrency forResultSet
objects generated by thisStatement
object.- Specified by:
getResultSetConcurrency
in interfaceStatement
- Returns:
- either
ResultSet.CONCUR_READ_ONLY
orResultSet.CONCUR_UPDATABLE
- Throws:
SQLException
- if a database access error occurs- Since:
- 1.2
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getResultSetType
public int getResultSetType() throws SQLException
Retrieves the result set type forResultSet
objects generated by thisStatement
object.- Specified by:
getResultSetType
in interfaceStatement
- Returns:
- one of
ResultSet.TYPE_FORWARD_ONLY
,ResultSet.TYPE_SCROLL_INSENSITIVE
, orResultSet.TYPE_SCROLL_SENSITIVE
- Throws:
SQLException
- if a database access error occurs- Since:
- 1.2
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addBatch
public void addBatch(String sql) throws SQLException
Adds the given SQL command to the current list of commmands for thisStatement
object. The commands in this list can be executed as a batch by calling the methodexecuteBatch
.NOTE: This method is optional.
- Specified by:
addBatch
in interfaceStatement
- Parameters:
sql
- typically this is a static SQLINSERT
orUPDATE
statement- Throws:
SQLException
- if a database access error occurs, or the driver does not support batch updates- Since:
- 1.2
- See Also:
executeBatch()
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clearBatch
public void clearBatch() throws SQLException
Empties thisStatement
object's current list of SQL commands.NOTE: This method is optional.
- Specified by:
clearBatch
in interfaceStatement
- Throws:
SQLException
- if a database access error occurs or the driver does not support batch updates- Since:
- 1.2
- See Also:
addBatch(java.lang.String)
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executeBatch
public 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. Theint
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 methodexecuteBatch
may be one of the following:- 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
- A value of
SUCCESS_NO_INFO
-- indicates that the command was processed successfully but that the number of rows affected is unknownIf 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 methodBatchUpdateException.getUpdateCounts
will contain as many elements as there are commands in the batch, and at least one of the elements will be the following: - A value of
EXECUTE_FAILED
-- 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
obejct has been thrown.- Specified by:
executeBatch
in interfaceStatement
- 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. ThrowsBatchUpdateException
(a subclass ofSQLException
) if one of the commands sent to the database fails to execute properly or attempts to return a result set.- Since:
- 1.3
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getConnection
public Connection getConnection() throws SQLException
Retrieves theConnection
object that produced thisStatement
object.- Specified by:
getConnection
in interfaceStatement
- Returns:
- the connection that produced this statement
- Throws:
SQLException
- if a database access error occurs- Since:
- 1.2
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getActualConnection
public Connection getActualConnection() throws SQLException
Returns the underlying physical connection.- Returns:
- the actual connection that produced this statement
- Throws:
SQLException
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getMoreResults
public boolean getMoreResults(int current) throws SQLException
Moves to thisStatement
object's next result, deals with any currentResultSet
object(s) according to the instructions specified by the given flag, and returnstrue
if the next result is aResultSet
object.// stmt is a Statement object ((stmt.getMoreResults() == false) && (stmt.getUpdateCount() == -1))
- Specified by:
getMoreResults
in interfaceStatement
- Parameters:
current
- one of the followingStatement
constants indicating what should happen to currentResultSet
objects obtained using the methodgetResultSet
:Statement.CLOSE_CURRENT_RESULT
,Statement.KEEP_CURRENT_RESULT
, orStatement.CLOSE_ALL_RESULTS
- Returns:
true
if the next result is aResultSet
object;false
if it is an update count or there are no more results- Throws:
SQLException
- if a database access error occurs or the argument supplied is not one of the following:Statement.CLOSE_CURRENT_RESULT
,Statement.KEEP_CURRENT_RESULT
, orStatement.CLOSE_ALL_RESULTS
- Since:
- 1.4
- See Also:
execute(java.lang.String)
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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 thisStatement
object should be made available for retrieval.- Specified by:
executeUpdate
in interfaceStatement
- Parameters:
sql
- must be an SQLINSERT
,UPDATE
orDELETE
statement or an SQL statement that returns nothingautoGeneratedKeys
- 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
orDELETE
statements, or0
for SQL statements that return nothing - Throws:
SQLException
- if a database access error occurs, the given SQL statement returns aResultSet
object, or the given constant is not one of those allowed- Since:
- 1.4
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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 anINSERT
statement.- Specified by:
executeUpdate
in interfaceStatement
- Parameters:
sql
- an SQLINSERT
,UPDATE
orDELETE
statement or an SQL statement that returns nothing, such as an SQL DDL statementcolumnIndexes
- an array of column indexes indicating the columns that should be returned from the inserted row- Returns:
- either the row count for
INSERT
,UPDATE
, orDELETE
statements, or 0 for SQL statements that return nothing - Throws:
SQLException
- if a database access error occurs, the SQL statement returns aResultSet
object, or the second argument supplied to this method is not anint
array whose elements are valid column indexes- Since:
- 1.4
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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 anINSERT
statement.- Specified by:
executeUpdate
in interfaceStatement
- Parameters:
sql
- an SQLINSERT
,UPDATE
orDELETE
statement or an SQL statement that returns nothingcolumnNames
- an array of the names of the columns that should be returned from the inserted row- Returns:
- either the row count for
INSERT
,UPDATE
, orDELETE
statements, or 0 for SQL statements that return nothing - Throws:
SQLException
- if a database access error occurs, the SQL statement returns aResultSet
object, or the second argument supplied to this method is not aString
array whose elements are valid column names- Since:
- 1.4
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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 anINSERT
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.
Theexecute
method executes an SQL statement and indicates the form of the first result. You must then use the methodsgetResultSet
orgetUpdateCount
to retrieve the result, andgetMoreResults
to move to any subsequent result(s).- Specified by:
execute
in interfaceStatement
- Parameters:
sql
- any SQL statementautoGeneratedKeys
- 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
orStatement.NO_GENERATED_KEYS
- Returns:
true
if the first result is aResultSet
object;false
if it is an update count or there are no results- Throws:
SQLException
- if a database access error occurs or the second parameter supplied to this method is notStatement.RETURN_GENERATED_KEYS
orStatement.NO_GENERATED_KEYS
.- Since:
- 1.4
- See Also:
Statement.getResultSet()
,getUpdateCount()
,getMoreResults()
,Statement.getGeneratedKeys()
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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 anINSERT
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.
Theexecute
method executes an SQL statement and indicates the form of the first result. You must then use the methodsgetResultSet
orgetUpdateCount
to retrieve the result, andgetMoreResults
to move to any subsequent result(s).- Specified by:
execute
in interfaceStatement
- Parameters:
sql
- any SQL statementcolumnIndexes
- an array of the indexes of the columns in the inserted row that should be made available for retrieval by a call to the methodgetGeneratedKeys
- Returns:
true
if the first result is aResultSet
object;false
if it is an update count or there are no results- Throws:
SQLException
- if a database access error occurs or the elements in theint
array passed to this method are not valid column indexes- Since:
- 1.4
- See Also:
Statement.getResultSet()
,getUpdateCount()
,getMoreResults()
-
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 anINSERT
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.
Theexecute
method executes an SQL statement and indicates the form of the first result. You must then use the methodsgetResultSet
orgetUpdateCount
to retrieve the result, andgetMoreResults
to move to any subsequent result(s).- Specified by:
execute
in interfaceStatement
- Parameters:
sql
- any SQL statementcolumnNames
- an array of the names of the columns in the inserted row that should be made available for retrieval by a call to the methodgetGeneratedKeys
- Returns:
true
if the next result is aResultSet
object;false
if it is an update count or there are no more results- Throws:
SQLException
- if a database access error occurs or the elements of theString
array passed to this method are not valid column names- Since:
- 1.4
- See Also:
Statement.getResultSet()
,getUpdateCount()
,getMoreResults()
,Statement.getGeneratedKeys()
-
getResultSetHoldability
public int getResultSetHoldability() throws SQLException
Retrieves the result set holdability forResultSet
objects generated by thisStatement
object.- Specified by:
getResultSetHoldability
in interfaceStatement
- Returns:
- either
ResultSet.HOLD_CURSORS_OVER_COMMIT
orResultSet.CLOSE_CURSORS_AT_COMMIT
- Throws:
SQLException
- if a database access error occurs- Since:
- 1.4
-
reclaimStatement
public void reclaimStatement() throws SQLException
Description copied from interface:StatementLeakListener
Reclaim the leaked statement- Specified by:
reclaimStatement
in interfaceStatementLeakListener
- Throws:
SQLException
-
markForReclaim
public void markForReclaim(boolean reclaimStatus)
-
isMarkedForReclaim
public boolean isMarkedForReclaim()
-
closeOnCompletion
public void closeOnCompletion() throws SQLException
- Specified by:
closeOnCompletion
in interfaceStatement
- Throws:
SQLException
-
actualCloseOnCompletion
public void actualCloseOnCompletion() throws SQLException
- Throws:
SQLException
-
isCloseOnCompletion
public boolean isCloseOnCompletion() throws SQLException
- Specified by:
isCloseOnCompletion
in interfaceStatement
- Throws:
SQLException
-
getCloseOnCompletion
public boolean getCloseOnCompletion()
-
incrementResultSetCount
public void incrementResultSetCount()
-
decrementResultSetCount
public void decrementResultSetCount()
-
getResultSetCount
public int getResultSetCount()
-
-