org.geotools.arcsde.data

Class FIDReader

Object

FIDReader

Direct Known Subclasses:

FIDReader.SdeManagedFidReader, FIDReader.ShapeFidReader, FIDReader.UserManagedFidReader

public abstract class FIDReader
extends Object

Strategy object used to manage the different ways an ArcSDE server handles row identity.

The supported strategies are:

• SDE managed mode: a column is assigned by the sde engine to be the feature id (it uses to be called OBJECTID)
• User managed: a user specified row is used as the fid column.
• Shape fid: if none of the above, the fid happens to be the identifier of the geometry column

Author:

Gabriel Roldan, Axios Engineering

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FIDReader.SdeManagedFidReader
static class	FIDReader.ShapeFidReader
static class	FIDReader.UserManagedFidReader

Field Summary

Fields

Modifier and Type	Field and Description
protected String	layerName
static FIDReader	NULL_READER

Method Summary

Modifier and Type	Method and Description
int	getColumnIndex()
String	getFidColumn()
static FIDReader	getFidReader(ISession session, SeTable table, SeLayer layer, SeRegistration reg) Returns a FID strategy appropriate for the given SeLayer
String[]	getPropertiesToFetch(SimpleFeatureType schema) Returns the attribute names of the FeatureType passed to the constructor.
long	readFid(SdeRow row)
void	setColumnIndex(int fidIndex)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

layerName

protected String layerName

NULL_READER

public static final FIDReader NULL_READER

Method Detail

getFidColumn

public String getFidColumn()

setColumnIndex

public void setColumnIndex(int fidIndex)

getColumnIndex

public int getColumnIndex()

readFid

public long readFid(SdeRow row)
             throws IOException

Throws:

IOException

getPropertiesToFetch

public String[] getPropertiesToFetch(SimpleFeatureType schema)
                              throws IOException

Returns the attribute names of the FeatureType passed to the constructor.

Parameters:

the - feature type containing the properties the client code is interested in. May well be a subset of the full set of attributes in the SeLayer

Returns:

the list of property names to actually fetch for a given feature type, taking into account the ones that possibly need to be fetched to generate the feature id, even if they're not part of the schema.

Throws:

IOException - if an arcsde exception is thrown somehow.

getFidReader

public static FIDReader getFidReader(ISession session,
                                     SeTable table,
                                     SeLayer layer,
                                     SeRegistration reg)
                              throws IOException

Returns a FID strategy appropriate for the given SeLayer

Parameters:

session -

tableName -

Returns:

Throws:

IOException