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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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************************************************************************/
#ifndef __com_sun_star_sdb_DataAccessDescriptor_idl__
#define __com_sun_star_sdb_DataAccessDescriptor_idl__
#include <com/sun/star/sdbc/Connection.idl>
#include <com/sun/star/sdbc/ResultSet.idl>
#include <com/sun/star/beans/XPropertySet.idl>
#include <com/sun/star/beans/PropertyValue.idl>
module com { module sun { module star { module sdb {
/** descriptor for accessing basic data access objects.
<p>Various components interacting with the database access world require to specify (or provide themselves) an object
such as a query, a table, a result set, a connection to a data source, a column within a table, and so on.<br/>
All of these objects are usually not specified with a single property, but with a set of properties, and for
various objects, various (but not always different) properties are needed.<br/>
The <code>DataAccessDescriptor</code> describes the super set of the properties for the most common
data access objects.</p>
<p>Every component providing or requiring a <type>DataAccessDescriptor</type> for some functionality
is urged to specify which properties are mandatory, and which ones optional. Additionally,
it's free to specify any additional requirements about the relations of properties.</p>
@since OOo 1.1.2
*/
published service DataAccessDescriptor
{
/** specifies the name of the datasource to access.
<p>This data source is usually used to create a <type>Connection</type>. If no DataSourceName is given
and the <member>DatabaseLocation</member> and the <member>ConnectionResource</member> are empty, then an <member>ActiveConnection</member>
is required.</p>
@see com::sun::star::sdb::DatabaseContext
@see ActiveConnection
*/
[optional, property] string DataSourceName;
/** specifies the URL of the database file.
<p>This database location is usually used to create a <type>Connection</type>. If no DatabaseLocation is given
and the <member>ConnectionResource</member> is empty, then an <member>ActiveConnection</member> is required.</p>
@see com::sun::star::sdb::DatabaseContext
@see ActiveConnection
*/
[optional, property] string DatabaseLocation;
/** specifies the database URL which locates a database driver.
<p>This database URL is usually used to create a <type>Connection</type>. If no ConnectionResource is given,
then an <member>ActiveConnection</member> is required.</p>
@see com::sun::star::sdb::DatabaseContext
@see ActiveConnection
*/
[optional, property] string ConnectionResource;
/** specifies additional info to use when creating a connection from a <code>ConnectionResource</code>
<p>This member is evaluated only when <code>ConnectionResource</code> is used: In this case,
<member scope="com::sun::star::sdbc">XDriverManager::getConnectionWithInfo</member> is used
to create a connection for the given connection resource, instead of
<member scope="com::sun::star::sdbc">XDriverManager::getConnection</member>.</p>
<p>If the sequence is empty, it is ignored.</p>
*/
[optional, property] sequence< ::com::sun::star::beans::PropertyValue > ConnectionInfo;
/** is a connection to use.
<p>This object is guaranteed to be a <type scope="com::sun::star::sdbc">Connection</type>, but usually
it will be a <type>Connection</type> from the module com::sun::star::sdb.<br/>
Especially in the case where no <member>DataSourceName</member> is given, but
<member>CommandType</member> is <member>CommandType::QUERY</member>, the ActiveConnection needs
to fully support the <type>Connection</type> service, to actually retrieve the query specified by
<member>Command</member></p>
<p>If no ActiveConnection is given, then a <member>DataSourceName</member> is required.</p>
@see DataSourceName
*/
[optional, property] com::sun::star::sdbc::XConnection ActiveConnection;
/** specifies the command to execute to retrieve a result set.
<p>This property is only meaningful together with the <member>CommandType</member>
property, thus either <em>both</em> or <em>none</em> of them are present.</p>
@see CommandType
*/
[optional, property] string Command;
/** specifies the type of the command to be executed to retrieve a result set.
<p><member>Command</member> needs to be interpreted depending on the value of this property.</p>
<p>This property is only meaningful together with the <member>Command</member>
property, thus either <em>both</em> or <em>none</em> of them are present.</p>
@see com::sun::star::sdb::CommandType
*/
[optional, property] long CommandType;
/** specifies an additional filter to optionally use.
<p>The Filter string has to form a <code>WHERE</code>-clause, <em>without</em> the
<code>WHERE</code>-string itself.</p>
<p>If a <member>DataSourceName</member>, <member>Command</member> and <member>CommandType</member>
are specified, a <type>RowSet</type> can be created with this information. If the results provided by the
row set are to be additionally filtered, the Filter property can be used.</p>
<p>Note that the Filter property does not make sense if a <member>ResultSet</member> has been specified
in the DataAccessDescriptor.</p>
@see com::sun::star::sdb::RowSet
@see ResultSet
*/
[optional, property] string Filter;
/** specifies an additional <code>ORDER BY</code> clause which should be applied on top of
the given <member>Command</member>.
<p>The keyword <code>ORDER BY</code> itself is not part of this property.</p>
*/
[optional, property] string Order;
/** specifies an additional <code>HAVING</code> clause which should be applied on top of
the given <member>Command</member>.
<p>The keyword <code>HAVING</code> itself is not part of this property.</p>
*/
[optional, property] string HavingClause;
/** specifies an additional <code>GROUP BY</code> clause which should be applied on top of
the given <member>Command</member>.
<p>The keyword <code>GROUP BY</code> itself is not part of this property.</p>
*/
[optional, property] string GroupBy;
/** specifies if the <member>Command</member> should be analyzed on the client side before sending it
to the database server.
<p>The default value of this property is <TRUE/>. By switching it to <FALSE/>, you can pass
backend-specific SQL statements, which are not standard SQL, to your database.</p>
<p>This property is usually present together with the <member>Command</member> and
<member>CommandType</member> properties, and is evaluated if and only if <member>CommandType</member>
equals <member>CommandType::COMMAND</member>.</p>
*/
[optional, property] boolean EscapeProcessing;
/** specifies an already existent result set to use.
<p>Usually, you use the properties <member>DataSourceName</member> (alternatively
<member>ActiveConnection</member>), <member>Command</member> and <member>CommandType</member> to specify
how to <em>obtain</em> a result set. However, in scenarios where the provider of a DataAccessDescriptor
has access to an already existent result set, it can pass it along for reusage. This is encouraged
to increase performance.</p>
<p>The object will at least support the <type scope="com::sun::star::sdbc">ResultSet</type> service.</p>
<p>Note that any superservices of <type scope="com::sun::star::sdbc">ResultSet</type>
are also allowed. Especially, this member can denote an instance of the
<type scope="com::sun::star::sdb">RowSet</type>, or an instance obtained
by calling <member scope="com::sun::star::sdb">XResultSetAccess::createResultSet</member>
on such a <type scope="com::sun::star::sdb">RowSet</type>. This becomes important in
conjunction with the <member>Selection</member> property.</p>
@see com::sun::star::sdb::XResultSetAccess
*/
[optional, property] com::sun::star::sdbc::XResultSet ResultSet;
/** specifies a selection to confine the records in a result set.
<p>When you specify a result set either implicitly (<member>DataSourceName</member>, <member>Command</member>,
<member>CommandType</member>) or explicitly (<member>ResultSet</member>), the set of results can be
additionally refined with this property.</p>
<p>The single elements of the <member>Selection</member> are either record numbers (see
<member scope="com::sun::star::sdbc">XResultSet::getRow</member>), or bookmarks (see
<member scope="com::sun::star::sdbcx">XRowLocate::getBookmark</member>).<br/>
It is up to the component which provides or requires a DataAccessDescriptor to specify which of the
two alternatives it expects. If it does <em>not</em> specify this, then the property
<member>BookmarkSelection</member> becomes mandatory.</p>
<p>If the elements specify bookmarks, and a <member>ResultSet</member> has been specified, then
this result set is required to support the <type scope="com::sun::star::sdbcx">XRowLocate</type> interface.</p>
*/
[optional, property] sequence< any > Selection;
/** specifies how to interpret <member>Selection</member>
<p>If present, <member>BookmarkSelection</member> specifies the semantics of <member>Selection</member>. If
not present, it's up to the implementing component to specify this semantics.</p>
<p>If <TRUE/>, then the single elements of the array specified by <member>Selection</member> are
bookmarks relative to the result set, if <FALSE/>, they're record numbers.</p>
@see com::sun::star::sdbcx::XRowLocate
@see com::sun::star::sdbc::XResultSet
@see com::sun::star::sdb::XResultSetAccess
*/
[optional, property] boolean BookmarkSelection;
/** specifies a column name.
<p>This property is usually used together with the <member>Command</member> and
<member>CommandType</member> properties.</p>
@see Column
*/
[optional, property] string ColumnName;
/** specifies a column object
<p>For reasons of performance and saving resources, a supplier of an DataAccessDescriptor which is
used to describe a column object can pass this object directly, instead of specifying it only implicitly
with the <member>ColumnName</member> property.</p>
<p>The object will at least support the <type scope="com::sun::star::sdbcx">Column</type> service, but more
often it will even be a <type>Column</type> from the com::sun::star::sdb module.</p>
*/
[optional, property] com::sun::star::beans::XPropertySet Column;
};
}; }; }; };
#endif
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