IT. Expert System.

Java Standard Edition (SE)

SQLOutput


compact2, compact3
java.sql

Interface SQLOutput

  • All Known Implementing Classes:
    SQLOutputImpl


    public interface SQLOutput
    The output stream for writing the attributes of a user-defined type back to the database. This interface, used only for custom mapping, is used by the driver, and its methods are never directly invoked by a programmer.

    When an object of a class implementing the interface SQLData is passed as an argument to an SQL statement, the JDBC driver calls the method SQLData.getSQLType to determine the kind of SQL datum being passed to the database. The driver then creates an instance of SQLOutput and passes it to the method SQLData.writeSQL. The method writeSQL in turn calls the appropriate SQLOutput writer methods writeBoolean, writeCharacterStream, and so on) to write data from the SQLData object to the SQLOutput output stream as the representation of an SQL user-defined type.

    Since:
    1.2
    • Method Summary

      All Methods Instance Methods Abstract Methods Default Methods 
      Modifier and Type Method and Description
      void writeArray(Array x)
      Writes an SQL ARRAY value to the stream.
      void writeAsciiStream(InputStream x)
      Writes the next attribute to the stream as a stream of ASCII characters.
      void writeBigDecimal(BigDecimal x)
      Writes the next attribute to the stream as a java.math.BigDecimal object.
      void writeBinaryStream(InputStream x)
      Writes the next attribute to the stream as a stream of uninterpreted bytes.
      void writeBlob(Blob x)
      Writes an SQL BLOB value to the stream.
      void writeBoolean(boolean x)
      Writes the next attribute to the stream as a Java boolean.
      void writeByte(byte x)
      Writes the next attribute to the stream as a Java byte.
      void writeBytes(byte[] x)
      Writes the next attribute to the stream as an array of bytes.
      void writeCharacterStream(Reader x)
      Writes the next attribute to the stream as a stream of Unicode characters.
      void writeClob(Clob x)
      Writes an SQL CLOB value to the stream.
      void writeDate(Date x)
      Writes the next attribute to the stream as a java.sql.Date object.
      void writeDouble(double x)
      Writes the next attribute to the stream as a Java double.
      void writeFloat(float x)
      Writes the next attribute to the stream as a Java float.
      void writeInt(int x)
      Writes the next attribute to the stream as a Java int.
      void writeLong(long x)
      Writes the next attribute to the stream as a Java long.
      void writeNClob(NClob x)
      Writes an SQL NCLOB value to the stream.
      void writeNString(String x)
      Writes the next attribute to the stream as a String in the Java programming language.
      default void writeObject(Object x, SQLType targetSqlType)
      Writes to the stream the data contained in the given object.
      void writeObject(SQLData x)
      Writes to the stream the data contained in the given SQLData object.
      void writeRef(Ref x)
      Writes an SQL REF value to the stream.
      void writeRowId(RowId x)
      Writes an SQL ROWID value to the stream.
      void writeShort(short x)
      Writes the next attribute to the stream as a Java short.
      void writeSQLXML(SQLXML x)
      Writes an SQL XML value to the stream.
      void writeString(String x)
      Writes the next attribute to the stream as a String in the Java programming language.
      void writeStruct(Struct x)
      Writes an SQL structured type value to the stream.
      void writeTime(Time x)
      Writes the next attribute to the stream as a java.sql.Time object.
      void writeTimestamp(Timestamp x)
      Writes the next attribute to the stream as a java.sql.Timestamp object.
      void writeURL(URL x)
      Writes a SQL DATALINK value to the stream.
    • Method Detail

      • writeString

        void writeString(String x)
                  throws SQLException
        Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeBoolean

        void writeBoolean(boolean x)
                   throws SQLException
        Writes the next attribute to the stream as a Java boolean. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeByte

        void writeByte(byte x)
                throws SQLException
        Writes the next attribute to the stream as a Java byte. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeShort

        void writeShort(short x)
                 throws SQLException
        Writes the next attribute to the stream as a Java short. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeInt

        void writeInt(int x)
               throws SQLException
        Writes the next attribute to the stream as a Java int. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeLong

        void writeLong(long x)
                throws SQLException
        Writes the next attribute to the stream as a Java long. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeFloat

        void writeFloat(float x)
                 throws SQLException
        Writes the next attribute to the stream as a Java float. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeDouble

        void writeDouble(double x)
                  throws SQLException
        Writes the next attribute to the stream as a Java double. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeBigDecimal

        void writeBigDecimal(BigDecimal x)
                      throws SQLException
        Writes the next attribute to the stream as a java.math.BigDecimal object. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeBytes

        void writeBytes(byte[] x)
                 throws SQLException
        Writes the next attribute to the stream as an array of bytes. Writes the next attribute to the stream as a String in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeDate

        void writeDate(Date x)
                throws SQLException
        Writes the next attribute to the stream as a java.sql.Date object. Writes the next attribute to the stream as a java.sql.Date object in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeTime

        void writeTime(Time x)
                throws SQLException
        Writes the next attribute to the stream as a java.sql.Time object. Writes the next attribute to the stream as a java.sql.Date object in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeTimestamp

        void writeTimestamp(Timestamp x)
                     throws SQLException
        Writes the next attribute to the stream as a java.sql.Timestamp object. Writes the next attribute to the stream as a java.sql.Date object in the Java programming language.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeCharacterStream

        void writeCharacterStream(Reader x)
                           throws SQLException
        Writes the next attribute to the stream as a stream of Unicode characters.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeAsciiStream

        void writeAsciiStream(InputStream x)
                       throws SQLException
        Writes the next attribute to the stream as a stream of ASCII characters.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeBinaryStream

        void writeBinaryStream(InputStream x)
                        throws SQLException
        Writes the next attribute to the stream as a stream of uninterpreted bytes.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeObject

        void writeObject(SQLData x)
                  throws SQLException
        Writes to the stream the data contained in the given SQLData object. When the SQLData object is null, this method writes an SQL NULL to the stream. Otherwise, it calls the SQLData.writeSQL method of the given object, which writes the object's attributes to the stream. The implementation of the method SQLData.writeSQL calls the appropriate SQLOutput writer method(s) for writing each of the object's attributes in order. The attributes must be read from an SQLInput input stream and written to an SQLOutput output stream in the same order in which they were listed in the SQL definition of the user-defined type.
        Parameters:
        x - the object representing data of an SQL structured or distinct type
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeRef

        void writeRef(Ref x)
               throws SQLException
        Writes an SQL REF value to the stream.
        Parameters:
        x - a Ref object representing data of an SQL REF value
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeBlob

        void writeBlob(Blob x)
                throws SQLException
        Writes an SQL BLOB value to the stream.
        Parameters:
        x - a Blob object representing data of an SQL BLOB value
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeClob

        void writeClob(Clob x)
                throws SQLException
        Writes an SQL CLOB value to the stream.
        Parameters:
        x - a Clob object representing data of an SQL CLOB value
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeStruct

        void writeStruct(Struct x)
                  throws SQLException
        Writes an SQL structured type value to the stream.
        Parameters:
        x - a Struct object representing data of an SQL structured type
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeArray

        void writeArray(Array x)
                 throws SQLException
        Writes an SQL ARRAY value to the stream.
        Parameters:
        x - an Array object representing data of an SQL ARRAY type
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.2
      • writeURL

        void writeURL(URL x)
               throws SQLException
        Writes a SQL DATALINK value to the stream.
        Parameters:
        x - a java.net.URL object representing the data of SQL DATALINK type
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.4
      • writeNString

        void writeNString(String x)
                   throws SQLException
        Writes the next attribute to the stream as a String in the Java programming language. The driver converts this to a SQL NCHAR or NVARCHAR or LONGNVARCHAR value (depending on the argument's size relative to the driver's limits on NVARCHAR values) when it sends it to the stream.
        Parameters:
        x - the value to pass to the database
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.6
      • writeNClob

        void writeNClob(NClob x)
                 throws SQLException
        Writes an SQL NCLOB value to the stream.
        Parameters:
        x - a NClob object representing data of an SQL NCLOB value
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.6
      • writeRowId

        void writeRowId(RowId x)
                 throws SQLException
        Writes an SQL ROWID value to the stream.
        Parameters:
        x - a RowId object representing data of an SQL ROWID value
        Throws:
        SQLException - if a database access error occurs
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.6
      • writeSQLXML

        void writeSQLXML(SQLXML x)
                  throws SQLException
        Writes an SQL XML value to the stream.
        Parameters:
        x - a SQLXML object representing data of an SQL XML value
        Throws:
        SQLException - if a database access error occurs, the java.xml.transform.Result, Writer or OutputStream has not been closed for the SQLXML object or if there is an error processing the XML value. The getCause method of the exception may provide a more detailed exception, for example, if the stream does not contain valid XML.
        SQLFeatureNotSupportedException - if the JDBC driver does not support this method
        Since:
        1.6
      • writeObject

        default void writeObject(Object x,
                                 SQLType targetSqlType)
                          throws SQLException
        Writes to the stream the data contained in the given object. The object will be converted to the specified targetSqlType before being sent to the stream.

        When the object is null, this method writes an SQL NULL to the stream.

        If the object has a custom mapping (is of a class implementing the interface SQLData), the JDBC driver should call the method SQLData.writeSQL to write it to the SQL data stream. If, on the other hand, the object is of a class implementing Ref, Blob, Clob, NClob, Struct, java.net.URL, or Array, the driver should pass it to the database as a value of the corresponding SQL type.

        The default implementation will throw SQLFeatureNotSupportedException

        Parameters:
        x - the object containing the input parameter value
        targetSqlType - the SQL type to be sent to the database.
        Throws:
        SQLException - if a database access error occurs or if the Java Object specified by x is an InputStream or Reader object and the value of the scale parameter is less than zero
        SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
        Since:
        1.8
        See Also:
        JDBCType, SQLType


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