org.firebirdsql.jdbc
Class AbstractStatement

java.lang.Object
  org.firebirdsql.jdbc.AbstractStatement

All Implemented Interfaces:

Statement, Wrapper, FirebirdStatement, Synchronizable

Direct Known Subclasses:

AbstractPreparedStatement, FBStatement

public abstract class AbstractStatement
extends Object
implements FirebirdStatement, Synchronizable

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.

Author:

David Jencks

See Also:

Connection.createStatement(), ResultSet

Field Summary

protected boolean	completed
protected int	fetchSize
protected SQLWarning	firstWarning
protected AbstractIscStmtHandle	fixedStmt
protected GDSHelper	gdsHelper
protected boolean	hasMoreResults
protected boolean	isResultSet
protected int	maxRows
protected FBObjectListener.StatementListener	statementListener

Fields inherited from interface org.firebirdsql.jdbc.FirebirdStatement

CLOSE_ALL_RESULTS, CLOSE_CURRENT_RESULT, KEEP_CURRENT_RESULT

Fields inherited from interface java.sql.Statement

EXECUTE_FAILED, NO_GENERATED_KEYS, RETURN_GENERATED_KEYS, SUCCESS_NO_INFO

Constructor Summary

protected

AbstractStatement(GDSHelper c, int rsType, int rsConcurrency, int rsHoldability, FBObjectListener.StatementListener statementListener)

Method Summary

void	addBatch(String sql) Adds an SQL command to the current batch of commmands for this Statement object.
protected void	addWarning(SQLWarning warning)
void	cancel() Cancels this Statement object if both the DBMS and driver support aborting an SQL statement.
void	clearBatch() Makes the set of commands in the current batch empty.
void	clearWarnings() Clears all the warnings reported on this Statement object.
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	completeStatement()
boolean	execute(String sql) Executes an SQL statement that may return multiple results.
int[]	executeBatch() Submits a batch of commands to the database for execution and if all commands execute successfully, returns an array of update counts.
ResultSet	executeQuery(String sql) Executes an SQL statement that returns a single ResultSet object.
int	executeUpdate(String sql) Executes an SQL INSERT, UPDATE or DELETE statement.
protected void	finalize()
void	forgetResultSet()
Connection	getConnection() Returns the Connection object that produced this Statement object.
ResultSet	getCurrentResultSet() Get current result set.
int	getDeletedRowsCount() Get number of deleted rows.
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 result sets generated from this Statement object.
int	getInsertedRowsCount() Get number of inserted rows.
String	getLastExecutionPlan() Get execution plan for the last executed statement.
int	getMaxFieldSize() Returns the maximum number of bytes allowed for any column value.
int	getMaxRows() Retrieves the maximum number of rows that a ResultSet object can contain.
boolean	getMoreResults() Moves to a Statement object's next result.
boolean	getMoreResults(int mode)
int	getQueryTimeout() Retrieves the number of seconds the driver will wait for a Statement object to execute.
ResultSet	getResultSet() Returns the current result as a ResultSet object.
ResultSet	getResultSet(boolean trimStrings)
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.
Object	getSynchronizationObject() Get synchronization object for this statement object.
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.
int	getUpdatedRowsCount() Get number of updated rows.
SQLWarning	getWarnings() Retrieves the first warning reported by calls on this Statement object.
boolean	hasOpenResultSet() Check if this statement has open result set.
protected boolean	internalExecute(String sql)
boolean	isClosed() Check if this statement was closed.
protected boolean	isExecuteProcedureStatement(AbstractIscStmtHandle handle) This method checks if supplied statement is executing procedure or it is generic statement.
boolean	isValid() Check if this statement is valid.
protected String	nativeSQL(String sql)
protected void	notifyStatementCompleted()
protected void	notifyStatementCompleted(boolean success)
protected void	notifyStatementStarted()
protected void	notifyStatementStarted(boolean closeResultSet)
protected void	prepareFixedStatement(String sql, boolean describeBind)
void	setCursorName(String name) Defines the SQL cursor name that 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 the rows in a result set will be processed.
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 a column to the given number of bytes.
void	setMaxRows(int max) Sets the limit for the maximum number of rows that any ResultSet object can contain to the given number.
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 int[]	toArray(Collection list) Convert collection of Integer elements into array of int.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.sql.Statement

execute, execute, execute, executeUpdate, executeUpdate, executeUpdate, getGeneratedKeys, isPoolable, setPoolable

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Field Detail

gdsHelper

protected GDSHelper gdsHelper

statementListener

protected FBObjectListener.StatementListener statementListener

fixedStmt

protected AbstractIscStmtHandle fixedStmt

completed

protected boolean completed

firstWarning

protected SQLWarning firstWarning

isResultSet

protected boolean isResultSet

hasMoreResults

protected boolean hasMoreResults

maxRows

protected int maxRows

fetchSize

protected int fetchSize

Constructor Detail

AbstractStatement

protected AbstractStatement(GDSHelper c,
                            int rsType,
                            int rsConcurrency,
                            int rsHoldability,
                            FBObjectListener.StatementListener statementListener)
                     throws SQLException

Throws:

SQLException

Method Detail

isValid

public boolean isValid()

Description copied from interface: FirebirdStatement

Check if this statement is valid.

Specified by:

isValid in interface FirebirdStatement

Returns:

true if statement is valid and can be used to execute SQL.

getSynchronizationObject

public Object getSynchronizationObject()
                                throws SQLException

Get synchronization object for this statement object.

Specified by:

getSynchronizationObject in interface Synchronizable

Returns:

object that will be used for synchronization.

Throws:

SQLException - if something went wrong.

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

completeStatement

public void completeStatement()
                       throws SQLException

Throws:

SQLException

executeQuery

public 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

notifyStatementStarted

protected void notifyStatementStarted()
                               throws SQLException

Throws:

SQLException

notifyStatementStarted

protected void notifyStatementStarted(boolean closeResultSet)
                               throws SQLException

Throws:

SQLException

notifyStatementCompleted

protected void notifyStatementCompleted()
                                 throws SQLException

Throws:

SQLException

notifyStatementCompleted

protected void notifyStatementCompleted(boolean success)
                                 throws SQLException

Throws:

SQLException

executeUpdate

public 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 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 Statement

Throws:

SQLException - if a database access error occurs

isClosed

public boolean isClosed()

Check if this statement was closed. This is quick workaround to avoid additional close() in our cleanup code.

Specified by:

isClosed in interface Statement

Returns:

true if this statement was already closed.

getMaxFieldSize

public 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

setMaxFieldSize

public 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

getMaxRows

public 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

setMaxRows

public 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 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

getQueryTimeout

public 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

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.

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

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.

Specified by:

cancel in interface Statement

Throws:

SQLException - if a database access error occurs

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.

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

clearWarnings

public 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

setCursorName

public 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

execute

public 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

See Also:

getResultSet(), getUpdateCount(), getMoreResults()

getResultSet

public ResultSet getResultSet()
                       throws SQLException

Returns the current result as a ResultSet object. This method should be called only once per result. Calling this method twice with autocommit on and used will probably throw an inappropriate or uninformative exception.

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

See Also:

execute(java.lang.String)

getResultSet

public ResultSet getResultSet(boolean trimStrings)
                       throws SQLException

Throws:

SQLException

hasOpenResultSet

public boolean hasOpenResultSet()

Description copied from interface: FirebirdStatement

Check if this statement has open result set. Note, this method works correctly if auto-commit is disabled. In auto-commit mode it will always return false because from the statement's point of view result set is not open (in auto-commit mode complete result set is fetched and cached in wrapping object before returning from the Statement.getResultSet() method).

Specified by:

hasOpenResultSet in interface FirebirdStatement

Returns:

true if there's already open result set associated with this statement, otherwise false.

getUpdateCount

public 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

See Also:

execute(java.lang.String)

getDeletedRowsCount

public int getDeletedRowsCount()
                        throws SQLException

Description copied from interface: FirebirdStatement

Get number of deleted rows. You can call this method multiple times, it does not affect the JDBC result number.

Specified by:

getDeletedRowsCount in interface FirebirdStatement

Returns:

number of deleted rows or -1 if current result is result set.

Throws:

SQLException - if database error occurs.

getInsertedRowsCount

public int getInsertedRowsCount()
                         throws SQLException

Description copied from interface: FirebirdStatement

Get number of inserted rows. You can call this method multiple times, it does not affect the JDBC result number.

Specified by:

getInsertedRowsCount in interface FirebirdStatement

Returns:

number of inserted rows or -1 if current result is result set.

Throws:

SQLException - if database error occurs.

getUpdatedRowsCount

public int getUpdatedRowsCount()
                        throws SQLException

Description copied from interface: FirebirdStatement

Get number of updated rows. You can call this method multiple times, it does not affect the JDBC result number.

Specified by:

getUpdatedRowsCount in interface FirebirdStatement

Returns:

number of updated rows or -1 if current result is result set.

Throws:

SQLException - if database error occurs.

getMoreResults

public 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() && (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

See Also:

execute(java.lang.String)

getMoreResults

public boolean getMoreResults(int mode)
                       throws SQLException

Specified by:

getMoreResults in interface Statement

Throws:

SQLException

setFetchDirection

public 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

See Also:

What Is in the JDBC 2.0 API

getFetchDirection

public 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

See Also:

What Is in the JDBC 2.0 API

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 interface Statement

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:

What Is in the JDBC 2.0 API

getFetchSize

public 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

See Also:

What Is in the JDBC 2.0 API

getResultSetConcurrency

public 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

Since:

1.2

See Also:

What Is in the JDBC 2.0 API

getResultSetType

public 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

Since:

1.2

See Also:

What Is in the JDBC 2.0 API

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 �FirebirdResultSet.HOLD_CURSORS_OVER_COMMIT or FirebirdResultSet.CLOSE_CURSORS_AT_COMMIT

Throws:

SQLException - if a database access error occurs

addBatch

public 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

See Also:

What Is in the JDBC 2.0 API

clearBatch

public 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

See Also:

What Is in the JDBC 2.0 API

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. 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 obejct 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

See Also:

What Is in the JDBC 2.0 API

toArray

protected int[] toArray(Collection list)

Convert collection of Integer elements into array of int.

Parameters:

list - collection of integer elements.

Returns:

array of int.

getConnection

public 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

forgetResultSet

public void forgetResultSet()

getCurrentResultSet

public ResultSet getCurrentResultSet()
                              throws SQLException

Description copied from interface: FirebirdStatement

Get current result set. Behaviour of this method is similar to the behavior of the Statement.getResultSet(), except that this method can be called as much as you like.

Specified by:

getCurrentResultSet in interface FirebirdStatement

Returns:

instance of ResultSet representing current result set or null if it is not available.

Throws:

SQLException - if database access error happened.

isExecuteProcedureStatement

protected boolean isExecuteProcedureStatement(AbstractIscStmtHandle handle)
                                       throws SQLException

This method checks if supplied statement is executing procedure or it is generic statement. This check is needed to handle correctly parameters that are returned from non-selectable procedures.

Parameters:

sql - SQL statement to check

Returns:

true if supplied statement is EXECUTE PROCEDURE type of statement.

Throws:

SQLException - if translating statement into native code failed.

internalExecute

protected boolean internalExecute(String sql)
                           throws GDSException,
                                  SQLException

Throws:

GDSException

SQLException

prepareFixedStatement

protected void prepareFixedStatement(String sql,
                                     boolean describeBind)
                              throws GDSException,
                                     SQLException

Throws:

GDSException

SQLException

addWarning

protected void addWarning(SQLWarning warning)

nativeSQL

protected String nativeSQL(String sql)
                    throws SQLException

Throws:

SQLException

getLastExecutionPlan

public String getLastExecutionPlan()
                            throws SQLException

Description copied from interface: FirebirdStatement

Get execution plan for the last executed statement. Unlike the FirebirdPreparedStatement.getExecutionPlan(), this method can be called only after executing a query or update statement.

Specified by:

getLastExecutionPlan in interface FirebirdStatement

Returns:

execution plan returned by the server.

Throws:

SQLException - if no statement was executed before calling this method, statement is not valid, or there was an error when obtaining the execution plan.