de.thaw.comb.io

Class WriterHelper

java.lang.Object

de.thaw.comb.io.WriterHelper

All Implemented Interfaces:

ShapeWriterDelegate

public abstract class WriterHelper
extends Object
implements ShapeWriterDelegate

Metadata definitions for use by the file output classes. This class is meant to be extended such that the defineSchema() method configures the instance's fields appropriately and the attributes(SpatialFeature) method returns the list of attribute values.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	WriterHelper.AttributeDefinition Name and type of an attribute.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	epsgCode
protected String	geometryType
protected List<WriterHelper.AttributeDefinition>	schema
protected String	typeName

Constructor Summary

Constructors

Constructor and Description
WriterHelper() Calls defineSchema().

Method Summary

Modifier and Type	Method and Description
List	attributes(Geometry geometry) Returns an ordered list of the attributes of a particular feature to be added to the Shapefile.
abstract List	attributes(SpatialFeature feature)
abstract void	defineSchema()
SimpleFeatureType	featureType(GeometryDescriptor geometryDescriptor) Returns a definition of the feature type and the attributes to be written to the Shapefile.

Methods inherited from class java.lang.Object

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

Field Detail

schema

protected List<WriterHelper.AttributeDefinition> schema

geometryType

protected String geometryType

typeName

protected String typeName

epsgCode

protected int epsgCode

Constructor Detail

WriterHelper

public WriterHelper()

Calls defineSchema().

Method Detail

defineSchema

public abstract void defineSchema()

attributes

public abstract List attributes(SpatialFeature feature)

featureType

public SimpleFeatureType featureType(GeometryDescriptor geometryDescriptor)
                              throws SchemaException

Returns a definition of the feature type and the attributes to be written to the Shapefile.

Specified by:

featureType in interface ShapeWriterDelegate

Parameters:

geometryDescriptor - a class providing the magic constant used by GeoTools to identify the geometry column in the Shapefile

Throws:

SchemaException

See Also:

DataUtilities.createType

attributes

public List attributes(Geometry geometry)

Returns an ordered list of the attributes of a particular feature to be added to the Shapefile. The list is expected to be in the same order as required by the featureType(org.opengis.feature.type.GeometryDescriptor) definition.

Specified by:

attributes in interface ShapeWriterDelegate

Parameters:

geometry - the feature the attributes of which to return

See Also:

Geometry.getUserData()