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package org.hsqldb.jdbc;

import java.sql.NClob;

The mapping in the Java™ programming language for the SQL NCLOB type. An SQL NCLOB is a built-in type that stores a Character Large Object using the National Character Set as a column value in a row of a database table.

The NClob interface extends the Clob interface which provides provides methods for getting the length of an SQL NCLOB value, for materializing a NCLOB value on the client, and for searching for a substring or NCLOB object within a NCLOB value. A NClob object, just like a Clob object, is valid for the duration of the transaction in which it was created. Methods in the interfaces ResultSet, CallableStatement, and PreparedStatement, such as getNClob and setNClob allow a programmer to access an SQL NCLOB value. In addition, this interface has methods for updating a NCLOB value.

HSQLDB-Specific Information:

First, it should be noted that since HSQLDB represents all character data internally as Java UNICODE (UTF16) String objects, there is not currently any appreciable difference between the HSQLDB XXXCHAR types and the SQL 2003 NXXXCHAR and NCLOB types.

See JDBCClob for further information.

Author:Campbell Burnet (campbell-burnet@users dot sourceforge.net)
See Also:
Since:JDK 1.6, HSQLDB 2.0
/** * The mapping in the Java&trade; programming language * for the SQL <code>NCLOB</code> type. * An SQL <code>NCLOB</code> is a built-in type * that stores a Character Large Object using the National Character Set * as a column value in a row of a database table. * <P>The <code>NClob</code> interface extends the <code>Clob</code> interface * which provides provides methods for getting the * length of an SQL <code>NCLOB</code> value, * for materializing a <code>NCLOB</code> value on the client, and for * searching for a substring or <code>NCLOB</code> object within a * <code>NCLOB</code> value. A <code>NClob</code> object, just like a <code>Clob</code> object, is valid for the duration * of the transaction in which it was created. * Methods in the interfaces {@link java.sql.ResultSet}, * {@link java.sql.CallableStatement}, and {@link java.sql.PreparedStatement}, such as * <code>getNClob</code> and <code>setNClob</code> allow a programmer to * access an SQL <code>NCLOB</code> value. In addition, this interface * has methods for updating a <code>NCLOB</code> value. * * <!-- start Release-specific documentation --> * <div class="ReleaseSpecificDocumentation"> * <h3>HSQLDB-Specific Information:</h3> <p> * * First, it should be noted that since HSQLDB represents all character data * internally as Java UNICODE (UTF16) String objects, there is not currently any * appreciable difference between the HSQLDB XXXCHAR types and the SQL 2003 * NXXXCHAR and NCLOB types. <p> * * See {@link org.hsqldb.jdbc.JDBCClob} for further information. * * </div> * <!-- end Release-specific documentation --> * * @since JDK 1.6, HSQLDB 2.0 * @author Campbell Burnet (campbell-burnet@users dot sourceforge.net) * @see JDBCClob * @see JDBCClobClient */
public class JDBCNClob extends JDBCClob implements NClob { protected JDBCNClob() { super(); } public JDBCNClob(String data) throws java.sql.SQLException { super(data); } }