/*
* @(#)RowSet.java 1.15 04/05/05
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.sql;
import java.sql.*;
import java.io.*;
import java.math.*;
import java.util.*;
/**
* The interface that adds support to the JDBC API for the
* JavaBeans<sup><font size=-2>TM</font></sup> 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.
* <P>
* The <code>RowSet</code>
* interface provides a set of JavaBeans properties that allow a <code>RowSet</code>
* instance to be configured to connect to a JDBC data source and read
* some data from the data source. A group of setter methods (<code>setInt</code>,
* <code>setBytes</code>, <code>setString</code>, 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.
* <P>
* The <code>RowSet</code>
* 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.
*
* <P>The <code>RowSet</code> interface is unique in that it is intended to be
* implemented using the rest of the JDBC API. In other words, a
* <code>RowSet</code> implementation is a layer of software that executes "on top"
* of a JDBC driver. Implementations of the <code>RowSet</code> interface can
* be provided by anyone, including JDBC driver vendors who want to
* provide a <code>RowSet</code> implementation as part of their JDBC products.
* <P>
* A <code>RowSet</code> object may make a connection with a data source and
* maintain that connection throughout its life cycle, in which case it is
* called a <i>connected</i> 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 <i>disconnected</i> 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.
* <P>
* A disconnected rowset may have a reader (a <code>RowSetReader</code> object)
* and a writer (a <code>RowSetWriter</code> 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.
* <P>
* Rowsets are easy to use. The <code>RowSet</code> interface extends the standard
* <code>java.sql.ResultSet</code> interface. The <code>RowSetMetaData</code>
* interface extends the <code>java.sql.ResultSetMetaData</code> 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 <code>ResultSet</code> objects will also easily be made to work with rowsets.
*
* @since 1.4
*/
public interface RowSet extends ResultSet {
//-----------------------------------------------------------------------
// Properties
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// The following properties may be used to create a Connection.
//-----------------------------------------------------------------------
/**
* Retrieves the url property this <code>RowSet</code> object will use to
* create a connection if it uses the <code>DriverManager</code>
* instead of a <code>DataSource</code> object to establish the connection.
* The default value is <code>null</code>.
*
* @return a string url
* @exception SQLException if a database access error occurs
* @see #setUrl
*/
String getUrl() throws SQLException;
/**
* Sets the URL this <code>RowSet</code> object will use when it uses the
* <code>DriverManager</code> 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.
*
* @param url a string value; may be <code>null</code>
* @exception SQLException if a database access error occurs
* @see #getUrl
*/
void setUrl(String url) throws SQLException;
/**
* Retrieves the logical name that identifies the data source for this
* <code>RowSet</code> 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.
*
* @return a data source name
* @see #setDataSourceName
* @see #setUrl
*/
String getDataSourceName();
/**
* Sets the data source name property for this <code>RowSet</code> object to the
* given <code>String</code>.
* <P>
* The value of the data source name property can be used to do a lookup of
* a <code>DataSource</code> object that has been registered with a naming
* service. After being retrieved, the <code>DataSource</code> object can be
* used to create a connection to the data source that it represents.
*
* @param name the logical name of the data source for this <code>RowSet</code>
* object
* @exception SQLException if a database access error occurs
* @see #getDataSourceName
*/
void setDataSourceName(String name) throws SQLException;
/**
* Retrieves the username used to create a database connection for this
* <code>RowSet</code> object.
* The username property is set at run time before calling the method
* <code>execute</code>. It is
* not usually part of the serialized state of a <code>RowSet</code> object.
*
* @return the username property
* @see #setUsername
*/
String getUsername();
/**
* Sets the username property for this <code>RowSet</code> object to the
* given <code>String</code>.
*
* @param name a user name
* @exception SQLException if a database access error occurs
* @see #getUsername
*/
void setUsername(String name) throws SQLException;
/**
* Retrieves the password used to create a database connection.
* The password property is set at run time before calling the method
* <code>execute</code>. It is not usually part of the serialized state
* of a <code>RowSet</code> object.
*
* @return the password for making a database connection
* @see #setPassword
*/
String getPassword();
/**
* Sets the database password for this <code>RowSet</code> object to
* the given <code>String</code>.
*
* @param password the password string
* @exception SQLException if a database access error occurs
* @see #getPassword
*/
void setPassword(String password) throws SQLException;
/**
* Retrieves the transaction isolation level set for this
* <code>RowSet</code> object.
*
* @return the transaction isolation level; one of
* <code>Connection.TRANSACTION_READ_UNCOMMITTED</code>,
* <code>Connection.TRANSACTION_READ_COMMITTED</code>,
* <code>Connection.TRANSACTION_REPEATABLE_READ</code>, or
* <code>Connection.TRANSACTION_SERIALIZABLE</code>
* @see #setTransactionIsolation
*/
int getTransactionIsolation();
/**
* Sets the transaction isolation level for this <code>RowSet</code> obejct.
*
* @param level the transaction isolation level; one of
* <code>Connection.TRANSACTION_READ_UNCOMMITTED</code>,
* <code>Connection.TRANSACTION_READ_COMMITTED</code>,
* <code>Connection.TRANSACTION_REPEATABLE_READ</code>, or
* <code>Connection.TRANSACTION_SERIALIZABLE</code>
* @exception SQLException if a database access error occurs
* @see #getTransactionIsolation
*/
void setTransactionIsolation(int level) throws SQLException;
/**
* Retrieves the <code>Map</code> object associated with this
* <code>RowSet</code> object, which specifies the custom mapping
* of SQL user-defined types, if any. The default is for the
* type map to be empty.
*
* @return a <code>java.util.Map</code> object containing the names of
* SQL user-defined types and the Java classes to which they are
* to be mapped
*
* @exception SQLException if a database access error occurs
* @see #setTypeMap
*/
java.util.Map<String,Class<?>> getTypeMap() throws SQLException;
/**
* Installs the given <code>java.util.Map</code> object as the default
* type map for this <code>RowSet</code> object. This type map will be
* used unless another type map is supplied as a method parameter.
*
* @param map a <code>java.util.Map</code> object containing the names of
* SQL user-defined types and the Java classes to which they are
* to be mapped
* @exception SQLException if a database access error occurs
* @see #getTypeMap
*/
void setTypeMap(java.util.Map<String,Class<?>> map) throws SQLException;
//-----------------------------------------------------------------------
// The following properties may be used to create a Statement.
//-----------------------------------------------------------------------
/**
* Retrieves this <code>RowSet</code> 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 <code>null</code>.
*
* @return the command string; may be <code>null</code>
* @see #setCommand
*/
String getCommand();
/**
* Sets this <code>RowSet</code> 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.
*
* @param cmd the SQL query that will be used to get the data for this
* <code>RowSet</code> object; may be <code>null</code>
* @exception SQLException if a database access error occurs
* @see #getCommand
*/
void setCommand(String cmd) throws SQLException;
/**
* Retrieves whether this <code>RowSet</code> object is read-only.
* If updates are possible, the default is for a rowset to be
* updatable.
* <P>
* Attempts to update a read-only rowset will result in an
* <code>SQLException</code> being thrown.
*
* @return <code>true</code> if this <code>RowSet</code> object is
* read-only; <code>false</code> if it is updatable
* @see #setReadOnly
*/
boolean isReadOnly();
/**
* Sets whether this <code>RowSet</code> object is read-only to the
* given <code>boolean</code>.
*
* @param value <code>true</code> if read-only; <code>false</code> if
* updatable
* @exception SQLException if a database access error occurs
* @see #isReadOnly
*/
void setReadOnly(boolean value) throws SQLException;
/**
* Retrieves the maximum number of bytes that may be returned
* for certain column values.
* This limit applies only to <code>BINARY</code>,
* <code>VARBINARY</code>, <code>LONGVARBINARYBINARY</code>, <code>CHAR</code>,
* <code>VARCHAR</code>, and <code>LONGVARCHAR</code> columns.
* If the limit is exceeded, the excess data is silently discarded.
*
* @return the current maximum column size limit; zero means that there
* is no limit
* @exception SQLException if a database access error occurs
* @see #setMaxFieldSize
*/
int getMaxFieldSize() 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 <code>BINARY</code>,
* <code>VARBINARY</code>, <code>LONGVARBINARYBINARY</code>, <code>CHAR</code>,
* <code>VARCHAR</code>, and <code>LONGVARCHAR</code> columns.
* If the limit is exceeded, the excess data is silently discarded.
* For maximum portability, use values greater than 256.
*
* @param max the new max column size limit in bytes; zero means unlimited
* @exception SQLException if a database access error occurs
* @see #getMaxFieldSize
*/
void setMaxFieldSize(int max) throws SQLException;
/**
* Retrieves the maximum number of rows that this <code>RowSet</code>
* object can contain.
* If the limit is exceeded, the excess rows are silently dropped.
*
* @return the current maximum number of rows that this <code>RowSet</code>
* object can contain; zero means unlimited
* @exception SQLException if a database access error occurs
* @see #setMaxRows
*/
int getMaxRows() throws SQLException;
/**
* Sets the maximum number of rows that this <code>RowSet</code>
* object can contain to the specified number.
* If the limit is exceeded, the excess rows are silently dropped.
*
* @param max the new maximum number of rows; zero means unlimited
* @exception SQLException if a database access error occurs
* @see #getMaxRows
*/
void setMaxRows(int max) throws SQLException;
/**
* Retrieves whether escape processing is enabled for this
* <code>RowSet</code> object.
* If escape scanning is enabled, which is the default, the driver will do
* escape substitution before sending an SQL statement to the database.
*
* @return <code>true</code> if escape processing is enabled;
* <code>false</code> if it is disabled
* @exception SQLException if a database access error occurs
* @see #setEscapeProcessing
*/
boolean getEscapeProcessing() throws SQLException;
/**
* Sets escape processing for this <code>RowSet</code> 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.
*
* @param enable <code>true</code> to enable escape processing;
* <code>false</code> to disable it
* @exception SQLException if a database access error occurs
* @see #getEscapeProcessing
*/
void setEscapeProcessing(boolean enable) throws SQLException;
/**
* Retrieves the maximum number of seconds the driver will wait for
* a statement to execute.
* If this limit is exceeded, an <code>SQLException</code> is thrown.
*
* @return the current query timeout limit in seconds; zero means
* unlimited
* @exception SQLException if a database access error occurs
* @see #setQueryTimeout
*/
int getQueryTimeout() 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 <code>SQLException</code> is thrown.
*
* @param seconds the new query timeout limit in seconds; zero means
* that there is no limit
* @exception SQLException if a database access error occurs
* @see #getQueryTimeout
*/
void setQueryTimeout(int seconds) throws SQLException;
/**
* Sets the type of this <code>RowSet</code> 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.
*
* @param type one of the <code>ResultSet</code> constants specifying a type:
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
* @exception SQLException if a database access error occurs
* @see java.sql.ResultSet#getType
*/
void setType(int type) throws SQLException;
/**
* Sets the concurrency of this <code>RowSet</code> object to the given
* concurrency level. This method is used to change the concurrency level
* of a rowset, which is by default <code>ResultSet.CONCUR_READ_ONLY</code>
*
* @param concurrency one of the <code>ResultSet</code> constants specifying a
* concurrency level: <code>ResultSet.CONCUR_READ_ONLY</code> or
* <code>ResultSet.CONCUR_UPDATABLE</code>
* @exception SQLException if a database access error occurs
* @see ResultSet#getConcurrency
*/
void setConcurrency(int concurrency) throws SQLException;
//-----------------------------------------------------------------------
// Parameters
//-----------------------------------------------------------------------
/**
* The <code>RowSet</code> setter methods are used to set any input parameters
* needed by the <code>RowSet</code> object's command.
* Parameters are set at run time, as opposed to design time.
*/
/**
* Sets the designated parameter in this <code>RowSet</code> object's SQL
* command to SQL <code>NULL</code>.
*
* <P><B>Note:</B> You must specify the parameter's SQL type.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param sqlType a SQL type code defined by <code>java.sql.Types</code>
* @exception SQLException if a database access error occurs
*/
void setNull(int parameterIndex, int sqlType) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's SQL
* command to SQL <code>NULL</code>. This version of the method <code>setNull</code>
* should be used for SQL user-defined types (UDTs) and <code>REF</code> type
* parameters. Examples of UDTs include: <code>STRUCT</code>, <code>DISTINCT</code>,
* <code>JAVA_OBJECT</code>, and named array types.
*
* <P><B>Note:</B> To be portable, applications must give the
* SQL type code and the fully qualified SQL type name when specifying
* a NULL UDT or <code>REF</code> parameter. In the case of a UDT,
* the name is the type name of the parameter itself. For a <code>REF</code>
* 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 <code>REF</code> 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 <code>REF</code> type,
* the typeName parameter is ignored.
*
*
* @param paramIndex the first parameter is 1, the second is 2, ...
* @param sqlType a value from <code>java.sql.Types</code>
* @param typeName the fully qualified name of an SQL UDT or the type
* name of the SQL structured type being referenced by a <code>REF</code>
* type; ignored if the parameter is not a UDT or <code>REF</code> type
* @exception SQLException if a database access error occurs
*/
void setNull (int paramIndex, int sqlType, String typeName)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>boolean</code> value. The driver converts this to
* an SQL <code>BIT</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setBoolean(int parameterIndex, boolean x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>byte</code> value. The driver converts this to
* an SQL <code>TINYINT</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setByte(int parameterIndex, byte x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>short</code> value. The driver converts this to
* an SQL <code>SMALLINT</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setShort(int parameterIndex, short x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>int</code> value. The driver converts this to
* an SQL <code>INTEGER</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setInt(int parameterIndex, int x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>long</code> value. The driver converts this to
* an SQL <code>BIGINT</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setLong(int parameterIndex, long x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>float</code> value. The driver converts this to
* an SQL <code>REAL</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setFloat(int parameterIndex, float x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>double</code> value. The driver converts this to
* an SQL <code>DOUBLE</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setDouble(int parameterIndex, double x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.math.BigDeciaml</code> value.
* The driver converts this to
* an SQL <code>NUMERIC</code> value before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java <code>String</code> value. Before sending it to the
* database, the driver converts this to an SQL <code>VARCHAR</code> or
* <code>LONGVARCHAR</code> value, depending on the argument's size relative
* to the driver's limits on <code>VARCHAR</code> values.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setString(int parameterIndex, String x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given Java array of <code>byte</code> values. Before sending it to the
* database, the driver converts this to an SQL <code>VARBINARY</code> or
* <code>LONGVARBINARY</code> value, depending on the argument's size relative
* to the driver's limits on <code>VARBINARY</code> values.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setBytes(int parameterIndex, byte x[]) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.sql.Date</code> value. The driver converts this to
* an SQL <code>DATE</code> value before sending it to the database, using the
* default <code>java.util.Calendar</code> to calculate the date.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setDate(int parameterIndex, java.sql.Date x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.sql.Time</code> value. The driver converts this to
* an SQL <code>TIME</code> value before sending it to the database, using the
* default <code>java.util.Calendar</code> to calculate it.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setTime(int parameterIndex, java.sql.Time x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.sql.Timestamp</code> value. The driver converts this to
* an SQL <code>TIMESTAMP</code> value before sending it to the database, using the
* default <code>java.util.Calendar</code> to calculate it.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @exception SQLException if a database access error occurs
*/
void setTimestamp(int parameterIndex, java.sql.Timestamp x)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.io.InputStream</code> value.
* It may be more practical to send a very large ASCII value via a
* <code>java.io.InputStream</code> rather than as a <code>LONGVARCHAR</code>
* parameter. The driver will read the data from the stream
* as needed until it reaches end-of-file.
*
* <P><B>Note:</B> This stream object can either be a standard
* Java stream object or your own subclass that implements the
* standard interface.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the Java input stream that contains the ASCII parameter value
* @param length the number of bytes in the stream
* @exception SQLException if a database access error occurs
*/
void setAsciiStream(int parameterIndex, java.io.InputStream x, int length)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.io.InputStream</code> value.
* It may be more practical to send a very large binary value via a
* <code>java.io.InputStream</code> rather than as a <code>LONGVARBINARY</code>
* parameter. The driver will read the data from the stream
* as needed until it reaches end-of-file.
*
* <P><B>Note:</B> This stream object can either be a standard
* Java stream object or your own subclass that implements the
* standard interface.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the java input stream which contains the binary parameter value
* @param length the number of bytes in the stream
* @exception SQLException if a database access error occurs
*/
void setBinaryStream(int parameterIndex, java.io.InputStream x,
int length) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* to the given <code>java.io.Reader</code> value.
* It may be more practical to send a very large UNICODE value via a
* <code>java.io.Reader</code> rather than as a <code>LONGVARCHAR</code>
* parameter. The driver will read the data from the stream
* as needed until it reaches end-of-file.
*
* <P><B>Note:</B> This stream object can either be a standard
* Java stream object or your own subclass that implements the
* standard interface.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param reader the <code>Reader</code> object that contains the UNICODE data
* to be set
* @param length the number of characters in the stream
* @exception SQLException if a database access error occurs
*/
void setCharacterStream(int parameterIndex,
Reader reader,
int length) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given Java <code>Object</code>. For integral values, the
* <code>java.lang</code> equivalent objects should be used (for example,
* an instance of the class <code>Integer</code> for an <code>int</code>).
*
* <p>The given Java object will be converted to the targetSqlType
* before being sent to the database.
* <P>
* If the object is of a class implementing <code>SQLData</code>,
* the rowset should call the method <code>SQLData.writeSQL</code>
* to write the object to an <code>SQLOutput</code> data stream.
* If the object is an instance of a class implementing the <code>Ref</code>,
* <code>Struct</code>, <code>Array</code>, <code>Blob</code>,
* or <code>Clob</code> interfaces,
* the driver uses the default mapping to the corresponding SQL type.
*
* <p>Note that this method may be used to pass datatabase-specific
* abstract data types.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the object containing the input parameter value
* @param targetSqlType the SQL type (as defined in <code>java.sql.Types</code>)
* to be sent to the database. The scale argument may further qualify this
* type.
* @param scale for <code>java.sql.Types.DECIMAL</code> or
* <code>java.sql.Types.NUMERIC</code> types, this is the number of
* digits after the decimal point. For all other types, this value
* will be ignored.
* @exception SQLException if a database access error occurs
* @see java.sql.Types
*/
void setObject(int parameterIndex, Object x, int targetSqlType, int scale)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with a Java <code>Object</code>. For integral values, the
* <code>java.lang</code> equivalent objects should be used.
* This method is like <code>setObject</code> 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.
* <P>
* Even though it is supported, it is not recommended that this method
* be called with floating point input values.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the object containing the input parameter value
* @param targetSqlType the SQL type (as defined in <code>java.sql.Types</code>)
* to be sent to the database
* @exception SQLException if a database access error occurs
*/
void setObject(int parameterIndex, Object x,
int targetSqlType) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with a Java <code>Object</code>. For integral values, the
* <code>java.lang</code> equivalent objects should be used.
*
* <p>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.
*
* <p>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 <code>SQLData</code>,
* the rowset should call the method <code>SQLData.writeSQL</code>
* to write the object to an <code>SQLOutput</code> data stream.
* If the object is an instance of a class implementing the <code>Ref</code>,
* <code>Struct</code>, <code>Array</code>, <code>Blob</code>,
* or <code>Clob</code> interfaces,
* the driver uses the default mapping to the corresponding SQL type.
* <P>
* 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.
*
* @param parameterIndex The first parameter is 1, the second is 2, ...
* @param x The object containing the input parameter value
* @exception SQLException if a database access error occurs
*/
void setObject(int parameterIndex, Object x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>Ref</code> value. The driver will convert this
* to the appropriate <code>REF(<structured-type>)</code> value.
*
* @param i the first parameter is 1, the second is 2, ...
* @param x an object representing data of an SQL <code>REF</code> type
* @exception SQLException if a database access error occurs
*/
void setRef (int i, Ref x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>Blob</code> value. The driver will convert this
* to the <code>BLOB</code> value that the <code>Blob</code> object
* represents before sending it to the database.
*
* @param i the first parameter is 1, the second is 2, ...
* @param x an object representing a BLOB
* @exception SQLException if a database access error occurs
*/
void setBlob (int i, Blob x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>Clob</code> value. The driver will convert this
* to the <code>CLOB</code> value that the <code>Clob</code> object
* represents before sending it to the database.
*
* @param i the first parameter is 1, the second is 2, ...
* @param x an object representing a CLOB
* @exception SQLException if a database access error occurs
*/
void setClob (int i, Clob x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>Array</code> value. The driver will convert this
* to the <code>ARRAY</code> value that the <code>Array</code> object
* represents before sending it to the database.
*
* @param i the first parameter is 1, the second is 2, ...
* @param x an object representing an SQL array
* @exception SQLException if a database access error occurs
*/
void setArray (int i, Array x) throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>java.sql.Date</code> value. The driver will convert this
* to an SQL <code>DATE</code> value, using the given <code>java.util.Calendar</code>
* object to calculate the date.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @param cal the <code>java.util.Calendar</code> object to use for calculating the date
* @exception SQLException if a database access error occurs
*/
void setDate(int parameterIndex, java.sql.Date x, Calendar cal)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>java.sql.Time</code> value. The driver will convert this
* to an SQL <code>TIME</code> value, using the given <code>java.util.Calendar</code>
* object to calculate it, before sending it to the database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @param cal the <code>java.util.Calendar</code> object to use for calculating the time
* @exception SQLException if a database access error occurs
*/
void setTime(int parameterIndex, java.sql.Time x, Calendar cal)
throws SQLException;
/**
* Sets the designated parameter in this <code>RowSet</code> object's command
* with the given <code>java.sql.Timestamp</code> value. The driver will
* convert this to an SQL <code>TIMESTAMP</code> value, using the given
* <code>java.util.Calendar</code> object to calculate it, before sending it to the
* database.
*
* @param parameterIndex the first parameter is 1, the second is 2, ...
* @param x the parameter value
* @param cal the <code>java.util.Calendar</code> object to use for calculating the
* timestamp
* @exception SQLException if a database access error occurs
*/
void setTimestamp(int parameterIndex, java.sql.Timestamp x, Calendar cal)
throws SQLException;
/**
* Clears the parameters set for this <code>RowSet</code> object's command.
* <P>In general, parameter values remain in force for repeated use of a
* <code>RowSet</code> 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 <code>clearParameters</code>.
*
* @exception SQLException if a database access error occurs
*/
void clearParameters() throws SQLException;
//---------------------------------------------------------------------
// Reading and writing data
//---------------------------------------------------------------------
/**
* Fills this <code>RowSet</code> object with data.
* <P>
* The <code>execute</code> 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 <code>execute</code> 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.
* <P>
* 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.
* <P>
* If this <code>RowSet</code> object does not maintain a continuous connection
* with its source of data, it may use a reader (a <code>RowSetReader</code>
* object) to fill itself with data. In this case, a reader will have been
* registered with this <code>RowSet</code> object, and the method
* <code>execute</code> will call on the reader's <code>readData</code>
* method as part of its implementation.
*
* @exception 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
*/
void execute() throws SQLException;
//--------------------------------------------------------------------
// Events
//--------------------------------------------------------------------
/**
* Registers the given listener so that it will be notified of events
* that occur on this <code>RowSet</code> object.
*
* @param listener a component that has implemented the <code>RowSetListener</code>
* interface and wants to be notified when events occur on this
* <code>RowSet</code> object
* @see #removeRowSetListener
*/
void addRowSetListener(RowSetListener listener);
/**
* Removes the specified listener from the list of components that will be
* notified when an event occurs on this <code>RowSet</code> object.
*
* @param listener a component that has been registered as a listener for this
* <code>RowSet</code> object
* @see #addRowSetListener
*/
void removeRowSetListener(RowSetListener listener);
}
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