JavaTM 2 Platform
Std. Ed. v1.4.2

javax.sql
Interface RowSet

All Superinterfaces:
ResultSet

public interface RowSet
extends ResultSet

The interface that adds support to the JDBC API for the JavaBeansTM component model. A rowset, which can be used as a JavaBeans component in a visual Bean development environment, can be created and configured at design time and executed at run time.

The RowSet interface provides a set of JavaBeans properties that allow a RowSet instance to be configured to connect to a JDBC data source and read some data from the data source. A group of setter methods (setInt, setBytes, setString, and so on) provide a way to pass input parameters to a rowset's command property. This command is the SQL query the rowset uses when it gets its data from a relational database, which is generally the case.

The RowSet interface supports JavaBeans events, allowing other components in an application to be notified when an event occurs on a rowset, such as a change in its value.

The RowSet interface is unique in that it is intended to be implemented using the rest of the JDBC API. In other words, a RowSet implementation is a layer of software that executes "on top" of a JDBC driver. Implementations of the RowSet interface can be provided by anyone, including JDBC driver vendors who want to provide a RowSet implementation as part of their JDBC products.

A RowSet object may make a connection with a data source and maintain that connection throughout its life cycle, in which case it is called a connected rowset. A rowset may also make a connection with a data source, get data from it, and then close the connection. Such a rowset is called a disconnected rowset. A disconnected rowset may make changes to its data while it is disconnected and then send the changes back to the original source of the data, but it must reestablish a connection to do so.

A disconnected rowset may have a reader (a RowSetReader object) and a writer (a RowSetWriter object) associated with it. The reader may be implemented in many different ways to populate a rowset with data, including getting data from a non-relational data source. The writer can also be implemented in many different ways to propagate changes made to the rowset's data back to the underlying data source.

Rowsets are easy to use. The RowSet interface extends the standard java.sql.ResultSet interface. The RowSetMetaData interface extends the java.sql.ResultSetMetaData interface. Thus, developers familiar with the JDBC API will have to learn a minimal number of new APIs to use rowsets. In addition, third-party software tools that work with JDBC ResultSet objects will also easily be made to work with rowsets.

Since:
1.4

Field Summary
 
Fields inherited from interface java.sql.ResultSet
CLOSE_CURSORS_AT_COMMIT, CONCUR_READ_ONLY, CONCUR_UPDATABLE, FETCH_FORWARD, FETCH_REVERSE, FETCH_UNKNOWN, HOLD_CURSORS_OVER_COMMIT, TYPE_FORWARD_ONLY, TYPE_SCROLL_INSENSITIVE, TYPE_SCROLL_SENSITIVE
 
Method Summary
 void addRowSetListener(RowSetListener listener)
          Registers the given listener so that it will be notified of events that occur on this RowSet object.
 void clearParameters()
          Clears the parameters set for this RowSet object's command.
 void execute()
          Fills this RowSet object with data.
 String getCommand()
          Retrieves this RowSet object's command property.
 String getDataSourceName()
          Retrieves the logical name that identifies the data source for this RowSet object.
 boolean getEscapeProcessing()
          Retrieves whether escape processing is enabled for this RowSet object.
 int getMaxFieldSize()
          Retrieves the maximum number of bytes that may be returned for certain column values.
 int getMaxRows()
          Retrieves the maximum number of rows that this RowSet object can contain.
 String getPassword()
          Retrieves the password used to create a database connection.
 int getQueryTimeout()
          Retrieves the maximum number of seconds the driver will wait for a statement to execute.
 int getTransactionIsolation()
          Retrieves the transaction isolation level set for this RowSet object.
 Map getTypeMap()
          Retrieves the Map object associated with this RowSet object, which specifies the custom mapping of SQL user-defined types, if any.
 String getUrl()
          Retrieves the url property this RowSet object will use to create a connection if it uses the DriverManager instead of a DataSource object to establish the connection.
 String getUsername()
          Retrieves the username used to create a database connection for this RowSet object.
 boolean isReadOnly()
          Retrieves whether this RowSet object is read-only.
 void removeRowSetListener(RowSetListener listener)
          Removes the specified listener from the list of components that will be notified when an event occurs on this RowSet object.
 void setArray(int i, Array x)
          Sets the designated parameter in this RowSet object's command with the given Array value.
 void setAsciiStream(int parameterIndex, InputStream x, int length)
          Sets the designated parameter in this RowSet object's command to the given java.io.InputStream value.
 void setBigDecimal(int parameterIndex, BigDecimal x)
          Sets the designated parameter in this RowSet object's command to the given java.math.BigDeciaml value.
 void setBinaryStream(int parameterIndex, InputStream x, int length)
          Sets the designated parameter in this RowSet object's command to the given java.io.InputStream value.
 void setBlob(int i, Blob x)
          Sets the designated parameter in this RowSet object's command with the given Blob value.
 void setBoolean(int parameterIndex, boolean x)
          Sets the designated parameter in this RowSet object's command to the given Java boolean value.
 void setByte(int parameterIndex, byte x)
          Sets the designated parameter in this RowSet object's command to the given Java byte value.
 void setBytes(int parameterIndex, byte[] x)
          Sets the designated parameter in this RowSet object's command to the given Java array of byte values.
 void setCharacterStream(int parameterIndex, Reader reader, int length)
          Sets the designated parameter in this RowSet object's command to the given java.io.Reader value.
 void setClob(int i, Clob x)
          Sets the designated parameter in this RowSet object's command with the given Clob value.
 void setCommand(String cmd)
          Sets this RowSet object's command property to the given SQL query.
 void setConcurrency(int concurrency)
          Sets the concurrency of this RowSet object to the given concurrency level.
 void setDataSourceName(String name)
          Sets the data source name property for this RowSet object to the given String.
 void setDate(int parameterIndex, Date x)
          Sets the designated parameter in this RowSet object's command to the given java.sql.Date value.
 void setDate(int parameterIndex, Date x, Calendar cal)
          Sets the designated parameter in this RowSet object's command with the given java.sql.Date value.
 void setDouble(int parameterIndex, double x)
          Sets the designated parameter in this RowSet object's command to the given Java double value.
 void setEscapeProcessing(boolean enable)
          Sets escape processing for this RowSet object on or off.
 void setFloat(int parameterIndex, float x)
          Sets the designated parameter in this RowSet object's command to the given Java float value.
 void setInt(int parameterIndex, int x)
          Sets the designated parameter in this RowSet object's command to the given Java int value.
 void setLong(int parameterIndex, long x)
          Sets the designated parameter in this RowSet object's command to the given Java long value.
 void setMaxFieldSize(int max)
          Sets the maximum number of bytes that can be returned for a column value to the given number of bytes.
 void setMaxRows(int max)
          Sets the maximum number of rows that this RowSet object can contain to the specified number.
 void setNull(int parameterIndex, int sqlType)
          Sets the designated parameter in this RowSet object's SQL command to SQL NULL.
 void setNull(int paramIndex, int sqlType, String typeName)
          Sets the designated parameter in this RowSet object's SQL command to SQL NULL.
 void setObject(int parameterIndex, Object x)
          Sets the designated parameter in this RowSet object's command with a Java Object.
 void setObject(int parameterIndex, Object x, int targetSqlType)
          Sets the designated parameter in this RowSet object's command with a Java Object.
 void setObject(int parameterIndex, Object x, int targetSqlType, int scale)
          Sets the designated parameter in this RowSet object's command with the given Java Object.
 void setPassword(String password)
          Sets the database password for this RowSet object to the given String.
 void setQueryTimeout(int seconds)
          Sets the maximum time the driver will wait for a statement to execute to the given number of seconds.
 void setReadOnly(boolean value)
          Sets whether this RowSet object is read-only to the given boolean.
 void setRef(int i, Ref x)
          Sets the designated parameter in this RowSet object's command with the given Ref value.
 void setShort(int parameterIndex, short x)
          Sets the designated parameter in this RowSet object's command to the given Java short value.
 void setString(int parameterIndex, String x)
          Sets the designated parameter in this RowSet object's command to the given Java String value.
 void setTime(int parameterIndex, Time x)
          Sets the designated parameter in this RowSet object's command to the given java.sql.Time value.
 void setTime(int parameterIndex, Time x, Calendar cal)
          Sets the designated parameter in this RowSet object's command with the given java.sql.Time value.
 void setTimestamp(int parameterIndex, Timestamp x)
          Sets the designated parameter in this RowSet object's command to the given java.sql.Timestamp value.
 void setTimestamp(int parameterIndex, Timestamp x, Calendar cal)
          Sets the designated parameter in this RowSet object's command with the given java.sql.Timestamp value.
 void setTransactionIsolation(int level)
          Sets the transaction isolation level for this RowSet obejct.
 void setType(int type)
          Sets the type of this RowSet object to the given type.
 void setTypeMap(Map map)
          Installs the given java.util.Map object as the default type map for this RowSet object.
 void setUrl(String url)
          Sets the URL this RowSet object will use when it uses the DriverManager to create a connection.
 void setUsername(String name)
          Sets the username property for this RowSet object to the given String.
 
Methods inherited from interface java.sql.ResultSet
absolute, afterLast, beforeFirst, cancelRowUpdates, clearWarnings, close, deleteRow, findColumn, first, getArray, getArray, getAsciiStream, getAsciiStream, getBigDecimal, getBigDecimal, getBigDecimal, getBigDecimal, getBinaryStream, getBinaryStream, getBlob, getBlob, getBoolean, getBoolean, getByte, getByte, getBytes, getBytes, getCharacterStream, getCharacterStream, getClob, getClob, getConcurrency, getCursorName, getDate, getDate, getDate, getDate, getDouble, getDouble, getFetchDirection, getFetchSize, getFloat, getFloat, getInt, getInt, getLong, getLong, getMetaData, getObject, getObject, getObject, getObject, getRef, getRef, getRow, getShort, getShort, getStatement, getString, getString, getTime, getTime, getTime, getTime, getTimestamp, getTimestamp, getTimestamp, getTimestamp, getType, getUnicodeStream, getUnicodeStream, getURL, getURL, getWarnings, insertRow, isAfterLast, isBeforeFirst, isFirst, isLast, last, moveToCurrentRow, moveToInsertRow, next, previous, refreshRow, relative, rowDeleted, rowInserted, rowUpdated, setFetchDirection, setFetchSize, updateArray, updateArray, updateAsciiStream, updateAsciiStream, updateBigDecimal, updateBigDecimal, updateBinaryStream, updateBinaryStream, updateBlob, updateBlob, updateBoolean, updateBoolean, updateByte, updateByte, updateBytes, updateBytes, updateCharacterStream, updateCharacterStream, updateClob, updateClob, updateDate, updateDate, updateDouble, updateDouble, updateFloat, updateFloat, updateInt, updateInt, updateLong, updateLong, updateNull, updateNull, updateObject, updateObject, updateObject, updateObject, updateRef, updateRef, updateRow, updateShort, updateShort, updateString, updateString, updateTime, updateTime, updateTimestamp, updateTimestamp, wasNull
 

Method Detail

getUrl

public String getUrl()
              throws SQLException
Retrieves the url property this RowSet object will use to create a connection if it uses the DriverManager instead of a DataSource object to establish the connection. The default value is null.

Returns:
a string url
Throws:
SQLException - if a database access error occurs
See Also:
setUrl(java.lang.String)

setUrl

public void setUrl(String url)
            throws SQLException
Sets the URL this RowSet object will use when it uses the DriverManager to create a connection. Setting this property is optional. If a URL is used, a JDBC driver that accepts the URL must be loaded by the application before the rowset is used to connect to a database. The rowset will use the URL internally to create a database connection when reading or writing data. Either a URL or a data source name is used to create a connection, whichever was specified most recently.

Parameters:
url - a string value; may be null
Throws:
SQLException - if a database access error occurs
See Also:
getUrl()

getDataSourceName

public String getDataSourceName()
Retrieves the logical name that identifies the data source for this RowSet object. Users should set either the url property or the data source name property. The rowset will use the property that was set more recently to get a connection.

Returns:
a data source name
See Also:
setDataSourceName(java.lang.String), setUrl(java.lang.String)

setDataSourceName

public void setDataSourceName(String name)
                       throws SQLException
Sets the data source name property for this RowSet object to the given String.

The value of the data source name property can be used to do a lookup of a DataSource object that has been registered with a naming service. After being retrieved, the DataSource object can be used to create a connection to the data source that it represents.

Parameters:
name - the logical name of the data source for this RowSet object
Throws:
SQLException - if a database access error occurs
See Also:
getDataSourceName()

getUsername

public String getUsername()
Retrieves the username used to create a database connection for this RowSet object. The username property is set at run time before calling the method execute. It is not usually part of the serialized state of a RowSet object.

Returns:
the username property
See Also:
setUsername(java.lang.String)

setUsername

public void setUsername(String name)
                 throws SQLException
Sets the username property for this RowSet object to the given String.

Parameters:
name - a user name
Throws:
SQLException - if a database access error occurs
See Also:
getUsername()

getPassword

public String getPassword()
Retrieves the password used to create a database connection. The password property is set at run time before calling the method execute. It is not usually part of the serialized state of a RowSet object.

Returns:
the password for making a database connection
See Also:
setPassword(java.lang.String)

setPassword

public void setPassword(String password)
                 throws SQLException
Sets the database password for this RowSet object to the given String.

Parameters:
password - the password string
Throws:
SQLException - if a database access error occurs
See Also:
getPassword()

getTransactionIsolation

public int getTransactionIsolation()
Retrieves the transaction isolation level set for this RowSet object.

Returns:
the transaction isolation level; one of Connection.TRANSACTION_READ_UNCOMMITTED, Connection.TRANSACTION_READ_COMMITTED, Connection.TRANSACTION_REPEATABLE_READ, or Connection.TRANSACTION_SERIALIZABLE
See Also:
setTransactionIsolation(int)

setTransactionIsolation

public void setTransactionIsolation(int level)
                             throws SQLException
Sets the transaction isolation level for this RowSet obejct.

Parameters:
level - the transaction isolation level; one of Connection.TRANSACTION_READ_UNCOMMITTED, Connection.TRANSACTION_READ_COMMITTED, Connection.TRANSACTION_REPEATABLE_READ, or Connection.TRANSACTION_SERIALIZABLE
Throws:
SQLException - if a database access error occurs
See Also:
getTransactionIsolation()

getTypeMap

public Map getTypeMap()
               throws SQLException
Retrieves the Map object associated with this RowSet object, which specifies the custom mapping of SQL user-defined types, if any. The default is for the type map to be empty.

Returns:
a java.util.Map object containing the names of SQL user-defined types and the Java classes to which they are to be mapped
Throws:
SQLException - if a database access error occurs
See Also:
setTypeMap(java.util.Map)

setTypeMap

public void setTypeMap(Map map)
                throws SQLException
Installs the given java.util.Map object as the default type map for this RowSet object. This type map will be used unless another type map is supplied as a method parameter.

Parameters:
map - a java.util.Map object containing the names of SQL user-defined types and the Java classes to which they are to be mapped
Throws:
SQLException - if a database access error occurs
See Also:
getTypeMap()

getCommand

public String getCommand()
Retrieves this RowSet object's command property. The command property contains a command string, which must be an SQL query, that can be executed to fill the rowset with data. The default value is null.

Returns:
the command string; may be null
See Also:
setCommand(java.lang.String)

setCommand

public void setCommand(String cmd)
                throws SQLException
Sets this RowSet object's command property to the given SQL query. This property is optional when a rowset gets its data from a data source that does not support commands, such as a spreadsheet.

Parameters:
cmd - the SQL query that will be used to get the data for this RowSet object; may be null
Throws:
SQLException - if a database access error occurs
See Also:
getCommand()

isReadOnly

public boolean isReadOnly()
Retrieves whether this RowSet object is read-only. If updates are possible, the default is for a rowset to be updatable.

Attempts to update a read-only rowset will result in an SQLException being thrown.

Returns:
true if this RowSet object is read-only; false if it is updatable
See Also:
setReadOnly(boolean)

setReadOnly

public void setReadOnly(boolean value)
                 throws SQLException
Sets whether this RowSet object is read-only to the given boolean.

Parameters:
value - true if read-only; false if updatable
Throws:
SQLException - if a database access error occurs
See Also:
isReadOnly()

getMaxFieldSize

public int getMaxFieldSize()
                    throws SQLException
Retrieves the maximum number of bytes that may be returned for certain column values. This limit applies only to BINARY, VARBINARY, LONGVARBINARYBINARY, CHAR, VARCHAR, and LONGVARCHAR columns. If the limit is exceeded, the excess data is silently discarded.

Returns:
the current maximum column size limit; zero means that there is no limit
Throws:
SQLException - if a database access error occurs
See Also:
setMaxFieldSize(int)

setMaxFieldSize

public void setMaxFieldSize(int max)
                     throws SQLException
Sets the maximum number of bytes that can be returned for a column value to the given number of bytes. This limit applies only to BINARY, VARBINARY, LONGVARBINARYBINARY, CHAR, VARCHAR, and LONGVARCHAR columns. If the limit is exceeded, the excess data is silently discarded. For maximum portability, use values greater than 256.

Parameters:
max - the new max column size limit in bytes; zero means unlimited
Throws:
SQLException - if a database access error occurs
See Also:
getMaxFieldSize()

getMaxRows

public int getMaxRows()
               throws SQLException
Retrieves the maximum number of rows that this RowSet object can contain. If the limit is exceeded, the excess rows are silently dropped.

Returns:
the current maximum number of rows that this RowSet object can contain; zero means unlimited
Throws:
SQLException - if a database access error occurs
See Also:
setMaxRows(int)

setMaxRows

public void setMaxRows(int max)
                throws SQLException
Sets the maximum number of rows that this RowSet object can contain to the specified number. If the limit is exceeded, the excess rows are silently dropped.

Parameters:
max - the new maximum number of rows; zero means unlimited
Throws:
SQLException - if a database access error occurs
See Also:
getMaxRows()

getEscapeProcessing

public boolean getEscapeProcessing()
                            throws SQLException
Retrieves whether escape processing is enabled for this RowSet object. If escape scanning is enabled, which is the default, the driver will do escape substitution before sending an SQL statement to the database.

Returns:
true if escape processing is enabled; false if it is disabled
Throws:
SQLException - if a database access error occurs
See Also:
setEscapeProcessing(boolean)

setEscapeProcessing

public void setEscapeProcessing(boolean enable)
                         throws SQLException
Sets escape processing for this RowSet object on or off. If escape scanning is on (the default), the driver will do escape substitution before sending an SQL statement to the database.

Parameters:
enable - true to enable escape processing; false to disable it
Throws:
SQLException - if a database access error occurs
See Also:
getEscapeProcessing()

getQueryTimeout

public int getQueryTimeout()
                    throws SQLException
Retrieves the maximum number of seconds the driver will wait for a statement to execute. If this limit is exceeded, an SQLException is thrown.

Returns:
the current query timeout limit in seconds; zero means unlimited
Throws:
SQLException - if a database access error occurs
See Also:
setQueryTimeout(int)

setQueryTimeout

public void setQueryTimeout(int seconds)
                     throws SQLException
Sets the maximum time the driver will wait for a statement to execute to the given number of seconds. If this limit is exceeded, an SQLException is thrown.

Parameters:
seconds - the new query timeout limit in seconds; zero means that there is no limit
Throws:
SQLException - if a database access error occurs
See Also:
getQueryTimeout()

setType

public void setType(int type)
             throws SQLException
Sets the type of this RowSet object to the given type. This method is used to change the type of a rowset, which is by default read-only and non-scrollable.

Parameters:
type - one of the ResultSet constants specifying a type: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
Throws:
SQLException - if a database access error occurs
See Also:
ResultSet.getType()

setConcurrency

public void setConcurrency(int concurrency)
                    throws SQLException
Sets the concurrency of this RowSet object to the given concurrency level. This method is used to change the concurrency level of a rowset, which is by default ResultSet.CONCUR_READ_ONLY

Parameters:
concurrency - one of the ResultSet constants specifying a concurrency level: ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
Throws:
SQLException - if a database access error occurs
See Also:
ResultSet.getConcurrency()

setNull

public void setNull(int parameterIndex,
                    int sqlType)
             throws SQLException
Sets the designated parameter in this RowSet object's SQL command to SQL NULL.

Note: You must specify the parameter's SQL type.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
sqlType - a SQL type code defined by java.sql.Types
Throws:
SQLException - if a database access error occurs

setNull

public void setNull(int paramIndex,
                    int sqlType,
                    String typeName)
             throws SQLException
Sets the designated parameter in this RowSet object's SQL command to SQL NULL. This version of the method setNull should be used for SQL user-defined types (UDTs) and REF type parameters. Examples of UDTs include: STRUCT, DISTINCT, JAVA_OBJECT, and named array types.

Note: To be portable, applications must give the SQL type code and the fully qualified SQL type name when specifying a NULL UDT or REF parameter. In the case of a UDT, the name is the type name of the parameter itself. For a REF parameter, the name is the type name of the referenced type. If a JDBC driver does not need the type code or type name information, it may ignore it. Although it is intended for UDT and REF parameters, this method may be used to set a null parameter of any JDBC type. If the parameter does not have a user-defined or REF type, the typeName parameter is ignored.

Parameters:
paramIndex - the first parameter is 1, the second is 2, ...
sqlType - a value from java.sql.Types
typeName - the fully qualified name of an SQL UDT or the type name of the SQL structured type being referenced by a REF type; ignored if the parameter is not a UDT or REF type
Throws:
SQLException - if a database access error occurs

setBoolean

public void setBoolean(int parameterIndex,
                       boolean x)
                throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java boolean value. The driver converts this to an SQL BIT value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setByte

public void setByte(int parameterIndex,
                    byte x)
             throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java byte value. The driver converts this to an SQL TINYINT value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setShort

public void setShort(int parameterIndex,
                     short x)
              throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java short value. The driver converts this to an SQL SMALLINT value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setInt

public void setInt(int parameterIndex,
                   int x)
            throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java int value. The driver converts this to an SQL INTEGER value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setLong

public void setLong(int parameterIndex,
                    long x)
             throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java long value. The driver converts this to an SQL BIGINT value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setFloat

public void setFloat(int parameterIndex,
                     float x)
              throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java float value. The driver converts this to an SQL REAL value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setDouble

public void setDouble(int parameterIndex,
                      double x)
               throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java double value. The driver converts this to an SQL DOUBLE value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setBigDecimal

public void setBigDecimal(int parameterIndex,
                          BigDecimal x)
                   throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.math.BigDeciaml value. The driver converts this to an SQL NUMERIC value before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setString

public void setString(int parameterIndex,
                      String x)
               throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java String value. Before sending it to the database, the driver converts this to an SQL VARCHAR or LONGVARCHAR value, depending on the argument's size relative to the driver's limits on VARCHAR values.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setBytes

public void setBytes(int parameterIndex,
                     byte[] x)
              throws SQLException
Sets the designated parameter in this RowSet object's command to the given Java array of byte values. Before sending it to the database, the driver converts this to an SQL VARBINARY or LONGVARBINARY value, depending on the argument's size relative to the driver's limits on VARBINARY values.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setDate

public void setDate(int parameterIndex,
                    Date x)
             throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.sql.Date value. The driver converts this to an SQL DATE value before sending it to the database, using the default java.util.Calendar to calculate the date.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setTime

public void setTime(int parameterIndex,
                    Time x)
             throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.sql.Time value. The driver converts this to an SQL TIME value before sending it to the database, using the default java.util.Calendar to calculate it.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setTimestamp

public void setTimestamp(int parameterIndex,
                         Timestamp x)
                  throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.sql.Timestamp value. The driver converts this to an SQL TIMESTAMP value before sending it to the database, using the default java.util.Calendar to calculate it.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
Throws:
SQLException - if a database access error occurs

setAsciiStream

public void setAsciiStream(int parameterIndex,
                           InputStream x,
                           int length)
                    throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.io.InputStream value. It may be more practical to send a very large ASCII value via a java.io.InputStream rather than as a LONGVARCHAR parameter. The driver will read the data from the stream as needed until it reaches end-of-file.

Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the Java input stream that contains the ASCII parameter value
length - the number of bytes in the stream
Throws:
SQLException - if a database access error occurs

setBinaryStream

public void setBinaryStream(int parameterIndex,
                            InputStream x,
                            int length)
                     throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.io.InputStream value. It may be more practical to send a very large binary value via a java.io.InputStream rather than as a LONGVARBINARY parameter. The driver will read the data from the stream as needed until it reaches end-of-file.

Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the java input stream which contains the binary parameter value
length - the number of bytes in the stream
Throws:
SQLException - if a database access error occurs

setCharacterStream

public void setCharacterStream(int parameterIndex,
                               Reader reader,
                               int length)
                        throws SQLException
Sets the designated parameter in this RowSet object's command to the given java.io.Reader value. It may be more practical to send a very large UNICODE value via a java.io.Reader rather than as a LONGVARCHAR parameter. The driver will read the data from the stream as needed until it reaches end-of-file.

Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
reader - the Reader object that contains the UNICODE data to be set
length - the number of characters in the stream
Throws:
SQLException - if a database access error occurs

setObject

public void setObject(int parameterIndex,
                      Object x,
                      int targetSqlType,
                      int scale)
               throws SQLException
Sets the designated parameter in this RowSet object's command with the given Java Object. For integral values, the java.lang equivalent objects should be used (for example, an instance of the class Integer for an int).

The given Java object will be converted to the targetSqlType before being sent to the database.

If the object is of a class implementing SQLData, the rowset should call the method SQLData.writeSQL to write the object to an SQLOutput data stream. If the object is an instance of a class implementing the Ref, Struct, Array, Blob, or Clob interfaces, the driver uses the default mapping to the corresponding SQL type.

Note that this method may be used to pass datatabase-specific abstract data types.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the object containing the input parameter value
targetSqlType - the SQL type (as defined in java.sql.Types) to be sent to the database. The scale argument may further qualify this type.
scale - for java.sql.Types.DECIMAL or java.sql.Types.NUMERIC types, this is the number of digits after the decimal point. For all other types, this value will be ignored.
Throws:
SQLException - if a database access error occurs
See Also:
Types

setObject

public void setObject(int parameterIndex,
                      Object x,
                      int targetSqlType)
               throws SQLException
Sets the designated parameter in this RowSet object's command with a Java Object. For integral values, the java.lang equivalent objects should be used. This method is like setObject above, but the scale used is the scale of the second parameter. Scalar values have a scale of zero. Literal values have the scale present in the literal.

Even though it is supported, it is not recommended that this method be called with floating point input values.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the object containing the input parameter value
targetSqlType - the SQL type (as defined in java.sql.Types) to be sent to the database
Throws:
SQLException - if a database access error occurs

setObject

public void setObject(int parameterIndex,
                      Object x)
               throws SQLException
Sets the designated parameter in this RowSet object's command with a Java Object. For integral values, the java.lang equivalent objects should be used.

The JDBC specification provides a standard mapping from Java Object types to SQL types. The driver will convert the given Java object to its standard SQL mapping before sending it to the database.

Note that this method may be used to pass datatabase-specific abstract data types by using a driver-specific Java type. If the object is of a class implementing SQLData, the rowset should call the method SQLData.writeSQL to write the object to an SQLOutput data stream. If the object is an instance of a class implementing the Ref, Struct, Array, Blob, or Clob interfaces, the driver uses the default mapping to the corresponding SQL type.

An exception is thrown if there is an ambiguity, for example, if the object is of a class implementing more than one of these interfaces.

Parameters:
parameterIndex - The first parameter is 1, the second is 2, ...
x - The object containing the input parameter value
Throws:
SQLException - if a database access error occurs

setRef

public void setRef(int i,
                   Ref x)
            throws SQLException
Sets the designated parameter in this RowSet object's command with the given Ref value. The driver will convert this to the appropriate REF(<structured-type>) value.

Parameters:
i - the first parameter is 1, the second is 2, ...
x - an object representing data of an SQL REF type
Throws:
SQLException - if a database access error occurs

setBlob

public void setBlob(int i,
                    Blob x)
             throws SQLException
Sets the designated parameter in this RowSet object's command with the given Blob value. The driver will convert this to the BLOB value that the Blob object represents before sending it to the database.

Parameters:
i - the first parameter is 1, the second is 2, ...
x - an object representing a BLOB
Throws:
SQLException - if a database access error occurs

setClob

public void setClob(int i,
                    Clob x)
             throws SQLException
Sets the designated parameter in this RowSet object's command with the given Clob value. The driver will convert this to the CLOB value that the Clob object represents before sending it to the database.

Parameters:
i - the first parameter is 1, the second is 2, ...
x - an object representing a CLOB
Throws:
SQLException - if a database access error occurs

setArray

public void setArray(int i,
                     Array x)
              throws SQLException
Sets the designated parameter in this RowSet object's command with the given Array value. The driver will convert this to the ARRAY value that the Array object represents before sending it to the database.

Parameters:
i - the first parameter is 1, the second is 2, ...
x - an object representing an SQL array
Throws:
SQLException - if a database access error occurs

setDate

public void setDate(int parameterIndex,
                    Date x,
                    Calendar cal)
             throws SQLException
Sets the designated parameter in this RowSet object's command with the given java.sql.Date value. The driver will convert this to an SQL DATE value, using the given java.util.Calendar object to calculate the date.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
cal - the java.util.Calendar object to use for calculating the date
Throws:
SQLException - if a database access error occurs

setTime

public void setTime(int parameterIndex,
                    Time x,
                    Calendar cal)
             throws SQLException
Sets the designated parameter in this RowSet object's command with the given java.sql.Time value. The driver will convert this to an SQL TIME value, using the given java.util.Calendar object to calculate it, before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
cal - the java.util.Calendar object to use for calculating the time
Throws:
SQLException - if a database access error occurs

setTimestamp

public void setTimestamp(int parameterIndex,
                         Timestamp x,
                         Calendar cal)
                  throws SQLException
Sets the designated parameter in this RowSet object's command with the given java.sql.Timestamp value. The driver will convert this to an SQL TIMESTAMP value, using the given java.util.Calendar object to calculate it, before sending it to the database.

Parameters:
parameterIndex - the first parameter is 1, the second is 2, ...
x - the parameter value
cal - the java.util.Calendar object to use for calculating the timestamp
Throws:
SQLException - if a database access error occurs

clearParameters

public void clearParameters()
                     throws SQLException
Clears the parameters set for this RowSet object's command.

In general, parameter values remain in force for repeated use of a RowSet object. Setting a parameter value automatically clears its previous value. However, in some cases it is useful to immediately release the resources used by the current parameter values, which can be done by calling the method clearParameters.

Throws:
SQLException - if a database access error occurs

execute

public void execute()
             throws SQLException
Fills this RowSet object with data.

The execute method may use the following properties to create a connection for reading data: url, data source name, user name, password, transaction isolation, and type map. The execute method may use the following properties to create a statement to execute a command: command, read only, maximum field size, maximum rows, escape processing, and query timeout.

If the required properties have not been set, an exception is thrown. If this method is successful, the current contents of the rowset are discarded and the rowset's metadata is also (re)set. If there are outstanding updates, they are ignored.

If this RowSet object does not maintain a continuous connection with its source of data, it may use a reader (a RowSetReader object) to fill itself with data. In this case, a reader will have been registered with this RowSet object, and the method execute will call on the reader's readData method as part of its implementation.

Throws:
SQLException - if a database access error occurs or any of the properties necessary for making a connection and creating a statement have not been set

addRowSetListener

public void addRowSetListener(RowSetListener listener)
Registers the given listener so that it will be notified of events that occur on this RowSet object.

Parameters:
listener - a component that has implemented the RowSetListener interface and wants to be notified when events occur on this RowSet object
See Also:
removeRowSetListener(javax.sql.RowSetListener)

removeRowSetListener

public void removeRowSetListener(RowSetListener listener)
Removes the specified listener from the list of components that will be notified when an event occurs on this RowSet object.

Parameters:
listener - a component that has been registered as a listener for this RowSet object
See Also:
addRowSetListener(javax.sql.RowSetListener)

JavaTM 2 Platform
Std. Ed. v1.4.2

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.


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