xref: /trunk/main/offapi/com/sun/star/sdbc/XSQLInput.idl (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)

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#ifndef __com_sun_star_sdbc_XSQLInput_idl__
#define __com_sun_star_sdbc_XSQLInput_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

#ifndef __com_sun_star_util_Date_idl__
#include <com/sun/star/util/Date.idl>
#endif

#ifndef __com_sun_star_util_DateTime_idl__
#include <com/sun/star/util/DateTime.idl>
#endif

#ifndef __com_sun_star_util_Time_idl__
#include <com/sun/star/util/Time.idl>
#endif

 module com {  module sun {  module star {  module io {
 published interface XInputStream;
};};};};

#ifndef __com_sun_star_sdbc_SQLException_idl__
#include <com/sun/star/sdbc/SQLException.idl>
#endif

 module com {  module sun {  module star {  module sdbc {

 published interface XRef;
 published interface XArray;
 published interface XBlob;
 published interface XClob;


/** represents an input stream that contains a stream of values representing an
    instance of a SQL structured or distinct type.


    <p>
    This interface, used only for custom mapping, is used by the driver
    behind the scenes, and a programmer never directly invokes
    <code>SQLInput</code>
    methods.
    </p>
    <p>
    When the method
    <code>getObject</code>
    is called with an object of a service implementing the interface
    <code>SQLData</code>
    , the SDBC driver calls the method
    <member scope="com::sun::star::sdbc">XSQLData::getSQLType()</member>
    to determine the SQL type of the user-defined type (UDT) being custom mapped.
    The driver creates an instance of
    <type scope="com::sun::star::sdbc">XSQLInput</type>
    ,
    populating it with the attributes of the UDT. The driver then passes the input
    stream to the method
    <member scope="com::sun::star::sdbc">XSQLData::readSQL()</member>
    , which in turn calls the
    <code>XSQLInput.readXXX</code>
    methods in its implementation for reading the attributes from the input stream.
    </p>
 */
published interface XSQLInput: com::sun::star::uno::XInterface
{

    /** reads the next attribute in the stream as string.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    string readString() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as boolean.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    boolean readBoolean() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as byte.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    byte readByte() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as short.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    short readShort() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as long.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    long readInt() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as hyper.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    hyper readLong() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as float.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    float readFloat() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as double.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    double readDouble() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as sequence of bytes.
              @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    sequence<byte> readBytes() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as date.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::util::Date readDate() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as time.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::util::Time readTime() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as datetime.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::util::DateTime readTimestamp() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as sequence of bytes.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::io::XInputStream readBinaryStream() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads the next attribute in the stream as a unicode string.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    com::sun::star::io::XInputStream readCharacterStream() raises (SQLException);
    //-------------------------------------------------------------------------

    /** returns the datum at the head of the stream as an any.


        <p>
        The actual type of the any returned is determined by the default
        type mapping, and any customizations present in this stream's type map.

        <br/>
        A type map is registered with the stream by the SDBC driver before the
        stream is passed to the application.

        <br/>
        When the datum at the head of the stream is a SQL NULL,
        the method returns <void/>. If the datum is a SQL structured or distinct
        type, it determines the SQL type of the datum at the head of the stream,
        constructs an object of the appropriate service, and calls the method
        <member scope="com::sun::star::sdbc">XSQLData::readSQL()</member>
        on that object, which reads additional data
        from the stream using the protocol described for that method.

        </p>
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    any readObject() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads a REF(&amp;lt;structured-type&amp;gt;) from the stream.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    XRef readRef() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads a BLOB from the stream.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    XBlob readBlob() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads a CLOB from the stream.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    XClob readClob() raises (SQLException);
    //-------------------------------------------------------------------------

    /** reads an array from the stream.
        @returns
            the attribute; if the value is SQL NULL, return null.
        @throws SQLException
            if a database access error occurs.
     */
    XArray readArray() raises (SQLException);
    //-------------------------------------------------------------------------

    /** determines whether the last value read was null.
        @returns
            <TRUE/> if the most recently gotten SQL value was null; otherwise, <FALSE/>
        @throws SQLException
            if a database access error occurs.
     */
    boolean wasNull() raises (SQLException);
};

//=============================================================================

}; }; }; };

/*===========================================================================
===========================================================================*/
#endif