org.geotools.data.vpf

Class VPFFeatureReader

Object

VPFFeatureReader

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureReader<SimpleFeatureType,SimpleFeature>

public class VPFFeatureReader
extends Object
implements FeatureReader<SimpleFeatureType,SimpleFeature>

Author:

Knut-Erik Johnsen, Project OneMap, Chris Holmes, Fulbright.

Field Summary

Fields

Modifier and Type	Field and Description
protected ContentState	state State used when reading file

Constructor Summary

Constructors

Constructor and Description
VPFFeatureReader(ContentState contentState, VPFFeatureType featureType)
VPFFeatureReader(VPFFeatureType type) Creates a new instance of VPFFeatureReader

Method Summary

Modifier and Type	Method and Description
void	close() Release the underlying resources associated with this stream.
SimpleFeatureType	getFeatureType() Return the FeatureType this reader has been configured to create.
VPFFile	getVPFFile(AttributeDescriptor column) Returns the VPFFile for a particular column.
VPFFile	getVPFFile(VPFColumn column) Returns the VPFFile for a particular column.
boolean	hasNext() Query whether this FeatureReader has another Feature.
SimpleFeature	next() Reads the next Feature in the FeatureReader.
void	reset() Need to reset the stream for the next time Resets the iterator by resetting the stream.

Methods inherited from class Object

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

Field Detail

state

protected ContentState state

State used when reading file

Constructor Detail

VPFFeatureReader

public VPFFeatureReader(VPFFeatureType type)

Creates a new instance of VPFFeatureReader

VPFFeatureReader

public VPFFeatureReader(ContentState contentState,
                        VPFFeatureType featureType)
                 throws IOException

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Description copied from interface: FeatureReader

Release the underlying resources associated with this stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Throws:

IOException - if an I/O error occurs

getFeatureType

public SimpleFeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

the FeatureType of the Features this FeatureReader will create.

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: FeatureReader

Query whether this FeatureReader has another Feature.

Specified by:

hasNext in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

True if there are more Features to be read. In other words, true if calls to next would return a feature rather than throwing an exception.

Throws:

IOException - If an error occurs determining if there are more Features.

next

public SimpleFeature next()
                   throws IOException,
                          IllegalAttributeException,
                          NoSuchElementException

Description copied from interface: FeatureReader

Reads the next Feature in the FeatureReader.

Specified by:

next in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

The next feature in the reader.

Throws:

IOException - If an error occurs reading the Feature.

IllegalAttributeException - If the attributes read do not comply with the FeatureType.

NoSuchElementException - If there are no more Features in the Reader.

getVPFFile

public VPFFile getVPFFile(VPFColumn column)

Returns the VPFFile for a particular column. It will only find the first match, but that should be okay because duplicate columns will cause even bigger problems elsewhere.

Parameters:

column - the column to search for

Returns:

the VPFFile that owns this column

getVPFFile

public VPFFile getVPFFile(AttributeDescriptor column)

Returns the VPFFile for a particular column. It will only find the first match, but that should be okay because duplicate columns will cause even bigger problems elsewhere.

Parameters:

column - the column to search for

Returns:

the VPFFile that owns this column

reset

public void reset()

Need to reset the stream for the next time Resets the iterator by resetting the stream.