imgdoc2::IDocQuery2d Class Reference

This interface is providing read-only access to the document. More...

#include <IDocQuery2d.h>

Inheritance diagram for imgdoc2::IDocQuery2d:

Public Member Functions
virtual void	ReadTileInfo (imgdoc2::dbIndex idx, imgdoc2::ITileCoordinateMutate *coordinate, imgdoc2::LogicalPositionInfo *info, imgdoc2::TileBlobInfo *tile_blob_info)=0
virtual void	Query (const imgdoc2::IDimCoordinateQueryClause *clause, const imgdoc2::ITileInfoQueryClause *tileInfoQuery, const std::function< bool(imgdoc2::dbIndex)> &func)=0
virtual void	GetTilesIntersectingRect (const imgdoc2::RectangleD &rect, const imgdoc2::IDimCoordinateQueryClause *coordinate_clause, const imgdoc2::ITileInfoQueryClause *tileinfo_clause, const std::function< bool(imgdoc2::dbIndex)> &func)=0
virtual void	ReadTileData (imgdoc2::dbIndex idx, imgdoc2::IBlobOutput *data)=0
	IDocQuery2d (const IDocQuery2d &)=delete
IDocQuery2d &	operator= (const IDocQuery2d &)=delete
	IDocQuery2d (IDocQuery2d &&)=delete
IDocQuery2d &	operator= (IDocQuery2d &&)=delete

Detailed Description

This interface is providing read-only access to the document.

Member Function Documentation

GetTilesIntersectingRect()

virtual void imgdoc2::IDocQuery2d::GetTilesIntersectingRect ( const imgdoc2::RectangleD &  rect, const imgdoc2::IDimCoordinateQueryClause *  coordinate_clause, const imgdoc2::ITileInfoQueryClause *  tileinfo_clause, const std::function< bool(imgdoc2::dbIndex)> &  func  )

pure virtual

Gets tiles intersecting the specified rectangle (and satisfying the other criteria).

Parameters

rect	The rectangle.
coordinate_clause	The coordinate clause.
tileinfo_clause	The tileinfo clause.
func	The function.

Query()

virtual void imgdoc2::IDocQuery2d::Query ( const imgdoc2::IDimCoordinateQueryClause *  clause, const imgdoc2::ITileInfoQueryClause *  tileInfoQuery, const std::function< bool(imgdoc2::dbIndex)> &  func  )

pure virtual

Query the tiles table. The two query clauses are used to filter the tiles. The first clause is used to filter the tiles by their coordinates, the second by other "per tile data". The functor is called for each tile which matches the query. If the functor returns false, the enumeration is canceled, and no more calls to the functor will occur. The two query clauses are logically ANDed together.

Parameters

clause	The query clause (dealing with dimension indexes).
tileInfoQuery	The query clause (dealing with other "per tile data").
func	A functor which we will be called, passing in the index of tiles matching the query. If the functor returns false, the enumeration is canceled, and no more calls to the functor will occur.

ReadTileData()

virtual void imgdoc2::IDocQuery2d::ReadTileData ( imgdoc2::dbIndex  idx, imgdoc2::IBlobOutput *  data  )

pure virtual

Reads the tile data for the specified tile.

Parameters

	idx	The primary key of the tile for which the tile data is to be read.
[in]	data	The object which is receiving the blob data.

ReadTileInfo()

virtual void imgdoc2::IDocQuery2d::ReadTileInfo ( imgdoc2::dbIndex  idx, imgdoc2::ITileCoordinateMutate *  coordinate, imgdoc2::LogicalPositionInfo *  info, imgdoc2::TileBlobInfo *  tile_blob_info  )

pure virtual

Reads tile information for the specified tile. There are three pieces of information which can be retrieved by this method, namely the tile-coordinate, the logical position and the tile-blob-info. If the respective pointers are null, the information will not be retrieved. If the row for the specified primary key does not exist, an exception of type "imgdoc2::non_existing_tile_exception" will be thrown.

Parameters

	idx	The primary key of the tile.
[out]	coordinate	If non-null and the operation is successful, the tile-coordinate will be put here.
[out]	info	If non-null and the operation is successful, the logical position will be put here.
[out]	tile_blob_info	If non-null and the operation is successful, the tile-blob-info will be put here.

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The documentation for this class was generated from the following file:

• inc/IDocQuery2d.h