mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-11 03:52:59 +00:00
377 lines
12 KiB
Java
377 lines
12 KiB
Java
/* Statement.java -- Interface for executing SQL statements.
|
|
Copyright (C) 1999, 2000, 2002, 2006 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package java.sql;
|
|
|
|
/**
|
|
* This interface provides a mechanism for executing SQL statements.
|
|
*
|
|
* @author Aaron M. Renn (arenn@urbanophile.com)
|
|
*/
|
|
public interface Statement
|
|
extends AutoCloseable
|
|
{
|
|
int CLOSE_CURRENT_RESULT = 1;
|
|
int KEEP_CURRENT_RESULT = 2;
|
|
int CLOSE_ALL_RESULTS = 3;
|
|
int SUCCESS_NO_INFO = -2;
|
|
int EXECUTE_FAILED = -3;
|
|
int RETURN_GENERATED_KEYS = 1;
|
|
int NO_GENERATED_KEYS = 2;
|
|
|
|
/**
|
|
* This method executes the specified SQL SELECT statement and returns a
|
|
* (possibly empty) <code>ResultSet</code> with the results of the query.
|
|
*
|
|
* @param sql The SQL statement to execute.
|
|
* @return The result set of the SQL statement.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
ResultSet executeQuery(String sql) throws SQLException;
|
|
|
|
/**
|
|
* This method executes the specified SQL INSERT, UPDATE, or DELETE statement
|
|
* and returns the number of rows affected, which may be 0.
|
|
*
|
|
* @param sql The SQL statement to execute.
|
|
* @return The number of rows affected by the SQL statement.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int executeUpdate(String sql) throws SQLException;
|
|
|
|
/**
|
|
* This method closes the statement and frees any associated resources.
|
|
*
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void close() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the maximum length of any column value in bytes.
|
|
*
|
|
* @return The maximum length of any column value in bytes.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int getMaxFieldSize() throws SQLException;
|
|
|
|
/**
|
|
* This method sets the limit for the maximum length of any column in bytes.
|
|
*
|
|
* @param maxSize The new maximum length of any column in bytes.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setMaxFieldSize(int maxSize) throws SQLException;
|
|
|
|
/**
|
|
* This method returns the maximum possible number of rows in a result set.
|
|
*
|
|
* @return The maximum possible number of rows in a result set.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int getMaxRows() throws SQLException;
|
|
|
|
/**
|
|
* This method sets the maximum number of rows that can be present in a
|
|
* result set.
|
|
*
|
|
* @param maxRows The maximum possible number of rows in a result set.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setMaxRows(int maxRows) throws SQLException;
|
|
|
|
/**
|
|
* This method sets the local escape processing mode on or off. The
|
|
* default value is on.
|
|
*
|
|
* @param escape <code>true</code> to enable local escape processing,
|
|
* <code>false</code> to disable it.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setEscapeProcessing(boolean escape) throws SQLException;
|
|
|
|
/**
|
|
* The method returns the number of seconds a statement may be in process
|
|
* before timing out. A value of 0 means there is no timeout.
|
|
*
|
|
* @return The SQL statement timeout in seconds.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int getQueryTimeout() throws SQLException;
|
|
|
|
/**
|
|
* This method sets the number of seconds a statement may be in process
|
|
* before timing out. A value of 0 means there is no timeout.
|
|
*
|
|
* @param seconds The new SQL statement timeout value.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setQueryTimeout(int seconds) throws SQLException;
|
|
|
|
/**
|
|
* This method cancels an outstanding statement, if the database supports
|
|
* that operation.
|
|
*
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void cancel() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the first SQL warning attached to this statement.
|
|
* Subsequent warnings will be chained to this one.
|
|
*
|
|
* @return The first SQL warning for this statement.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
SQLWarning getWarnings() throws SQLException;
|
|
|
|
/**
|
|
* This method clears any SQL warnings that have been attached to this
|
|
* statement.
|
|
*
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void clearWarnings() throws SQLException;
|
|
|
|
/**
|
|
* This method sets the cursor name that will be used by the result set.
|
|
*
|
|
* @param name The cursor name to use for this statement.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setCursorName(String name) throws SQLException;
|
|
|
|
/**
|
|
* This method executes an arbitrary SQL statement of any time. The
|
|
* methods <code>getResultSet</code>, <code>getMoreResults</code> and
|
|
* <code>getUpdateCount</code> retrieve the results.
|
|
*
|
|
* @return <code>true</code> if a result set was returned, <code>false</code>
|
|
* if an update count was returned.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
boolean execute(String sql) throws SQLException;
|
|
|
|
/**
|
|
* This method returns the result set of the SQL statement that was
|
|
* executed. This should be called only once per result set returned.
|
|
*
|
|
* @return The result set of the query, or <code>null</code> if there was
|
|
* no result set (for example, if the statement was an UPDATE).
|
|
* @exception SQLException If an error occurs.
|
|
* @see #execute(String)
|
|
* @see #execute(String, int)
|
|
* @see #execute(String, int[])
|
|
* @see #execute(String, String[])
|
|
*/
|
|
ResultSet getResultSet() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the update count of the SQL statement that was
|
|
* executed. This should be called only once per executed SQL statement.
|
|
*
|
|
* @return The update count of the query, or -1 if there was no update
|
|
* count (for example, if the statement was a SELECT).
|
|
* @exception SQLException If an error occurs.
|
|
* @see #execute(String)
|
|
* @see #execute(String, int)
|
|
* @see #execute(String, int[])
|
|
* @see #execute(String, String[])
|
|
*/
|
|
int getUpdateCount() throws SQLException;
|
|
|
|
/**
|
|
* This method advances the result set pointer to the next result set,
|
|
* which can then be retrieved using <code>getResultSet</code>
|
|
*
|
|
* @return <code>true</code> if there is another result set,
|
|
* <code>false</code> otherwise (for example, the next result is an
|
|
* update count).
|
|
* @exception SQLException If an error occurs.
|
|
* @see #execute(String)
|
|
* @see #execute(String, int)
|
|
* @see #execute(String, int[])
|
|
* @see #execute(String, String[])
|
|
*/
|
|
boolean getMoreResults() throws SQLException;
|
|
|
|
/**
|
|
* This method informs the driver which direction the result set will
|
|
* be accessed in.
|
|
*
|
|
* @param direction The direction the result set will be accessed in (?????)
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setFetchDirection(int direction) throws SQLException;
|
|
|
|
/**
|
|
* This method returns the current direction that the driver thinks the
|
|
* result set will be accessed int.
|
|
*
|
|
* @return The direction the result set will be accessed in (????)
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int getFetchDirection() throws SQLException;
|
|
|
|
/**
|
|
* This method informs the driver how many rows it should fetch from the
|
|
* database at a time.
|
|
*
|
|
* @param numRows The number of rows the driver should fetch at a time
|
|
* to populate the result set.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void setFetchSize(int numRows) throws SQLException;
|
|
|
|
/**
|
|
* This method returns the number of rows the driver believes should be
|
|
* fetched from the database at a time.
|
|
*
|
|
* @return The number of rows that will be fetched from the database at a time.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int getFetchSize() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the concurrency type of the result set for this
|
|
* statement. This will be one of the concurrency types defined in
|
|
* <code>ResultSet</code>.
|
|
*
|
|
* @return The concurrency type of the result set for this statement.
|
|
* @exception SQLException If an error occurs.
|
|
* @see ResultSet
|
|
*/
|
|
int getResultSetConcurrency() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the result set type for this statement. This will
|
|
* be one of the result set types defined in <code>ResultSet</code>.
|
|
*
|
|
* @return The result set type for this statement.
|
|
* @exception SQLException If an error occurs.
|
|
* @see ResultSet
|
|
*/
|
|
int getResultSetType() throws SQLException;
|
|
|
|
/**
|
|
* This method adds a SQL statement to a SQL batch. A driver is not
|
|
* required to implement this method.
|
|
*
|
|
* @param sql The sql statement to add to the batch.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void addBatch(String sql) throws SQLException;
|
|
|
|
/**
|
|
* This method clears out any SQL statements that have been populated in
|
|
* the current batch. A driver is not required to implement this method.
|
|
*
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
void clearBatch() throws SQLException;
|
|
|
|
/**
|
|
* This method executes the SQL batch and returns an array of update
|
|
* counts - one for each SQL statement in the batch - ordered in the same
|
|
* order the statements were added to the batch. A driver is not required
|
|
* to implement this method.
|
|
*
|
|
* @return An array of update counts for this batch.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
int[] executeBatch() throws SQLException;
|
|
|
|
/**
|
|
* This method returns the <code>Connection</code> instance that was
|
|
* used to create this object.
|
|
*
|
|
* @return The connection used to create this object.
|
|
* @exception SQLException If an error occurs.
|
|
*/
|
|
Connection getConnection() throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
boolean getMoreResults(int current) throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
ResultSet getGeneratedKeys() throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
int executeUpdate(String sql, int autoGeneratedKeys)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
int executeUpdate(String sql, int[] columnIndexes)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
int executeUpdate(String sql, String[] columnNames)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
boolean execute(String sql, int autoGeneratedKeys)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
boolean execute(String sql, int[] columnIndexes) throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
boolean execute(String sql, String[] columnNames)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* @since 1.4
|
|
*/
|
|
int getResultSetHoldability() throws SQLException;
|
|
}
|