Data sources, Choosing the correct data source, Data sources choosing the correct data source – Pitney Bowes MapXtreme User Manual
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Chapter 8: Working with Data
Table Metadata (TableInfo)
MapXtreme v7.1
177
Developer Guide
Data Sources
The following table lists the data sources supported by MapXtreme. Each type of data source is
accessed by a specific data provider, a TableInfo class that is derived from MapInfo.Data.TableInfo.
For a short summary of each data type see
.
Choosing the Correct Data Source
Choosing the correct data source can make a difference in your application’s performance. In some
cases you will not have a choice, such as native MapInfo files (.TAB), but in other cases there may
be multiple choices. In most cases, you will be using a supported data provider for the data source.
In cases where the data is not accessible through one of these, you may be able to use the MapInfo
ADO.NET data provider. This is the same data provider interface that the Catalog uses to retrieve
data.
Each data source has certain performance characteristics. Native tables offer the best access and
map drawing times. Data is stored locally on the system and optimized for your current operation.
Other file-based table types perform well, depending on current hardware and file size.
Data Source
Class
Native (MapInfo.TAB)
TableInfoNative
dBase
TableInfodBase
MS Access
TableInfoMSAccess
ASCII
TableInfoAscii
RSBMS Server
TableInfoServer
ESRI Shapefile
TableInfoShapefile
Seamless
TableInfoSeamless
Raster
TableInfoRaster
Grid
TableInfoGrid
WMS
TableInfoWMS
ADONET
TableInfoAdoNet
MemTable
TableInfoMemTable
View
TableInfoView
ResultSet
TableInfoResultSet